2023 Mercedes-Benz AMG GLC63 S

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11010970Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-25 C-Class, CLA, EQB, EQE, EQS, G-Class, GLA, GLB, GLC, GLE, GLS, GT, S-Class, and SL (206, 118, 243, 294, 296, 465, 247, 254, 167, 192, 223, and 232 platform) vehicles, the MBUX multimedia system does not correspond with the latest series production configuration. The MBUX multimedia system control unit will receive an OTA software update. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 11010818Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy It is important that LI54.15-P-057373 is processed before replacing any component parts (transmission 722.9). After processing and complying with the above documents, perform a reset on the transmission control unit Y3/8n4 (VGS) (ignition reset), check that the transmission connector is seated correctly and inspect the PINs for concerns. If communication with the VGS cannot be established afterwards, the component part 'electrohydraulic controller unit (EHS)' must be replaced, as it is not possible to transfer the valve characteristics under the above-mentioned conditions. Installation of a VGS repair kit is not permitted in this case.
• 11010648Complaint Transfer of selected user-defined scene/ animation (Mercedes-Benz Phone App) from HU to ECU software fails to start. Charging bar stops at 0%. (Picture in attachment) Cause Communication between headlight control unit and HU. Remedy Update the software of the following control units to the latest version: - A26/17 - MBUX multimedia system (head unit) - E1n14 - Front left digital headlight control unit (DHLS-CU-VL) - E2n14 - Front right digital headlight control unit (DHLS-CU-VR)
• 11010455Complaint Only vehicles with a variable transfer case are affected. Can be identified through control unit N45 or N15/7 in the quick test When accelerating with light load, vibrations or jolting sensation may come from the drivetrain Cause Modified oil quality of the transfer case over time Remedy Check initial quick test for faults in the following control units N45 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present, process them as per the guided test in Xentry If no faults are present: Check the oil level of the transmission If the oil level is correct: Unplug the connector for the transfer cases control unit Reassess the vehicle on a subsequent test drive If the complaint no longer occurs: Perform an oil change of the transfer case according to WIS specifications After please complete all transfer case Tech-in processes located under VG control unit Adaptations tab - Resetting the oil service data - Calibration of N15/7 Perform road test of vehicle to bring transmission to operating temperature ( >60C ) Operate vehicle in full circle with steering at full lock - 5x to the left - 5x to the right Reassess the vehicle following the oil change and teach in If the problem continues to occur with the plug removed or after the oil change has been carried out: Create a TIPS case with the following data Initial quick test with fault freeze frame data EEPROM data from Y3/8 Transmission control unit EEPROM data from N45 All-wheel drive Injector performance data
• 11009122Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose cannot be snapped into place on pump fitting. 3.4. Washer fluid hose will not stay on pump fitting, although connector OK. 4. Washer fluid line. 4.1 Connector will not stay on pump fitting because it is broken. 4.2 Sealing ring in connector missing. 4.3 Sealing ring in connector fitted, but deformed and therefore leaks. 4.4 Damage to washer line by animal. 5. Seal on heating washer fluid reservoir/washer fluid reservoir. Remedy Replace defective component parts only. Do not replace any adjacent component parts that are intact. Note: Repair kits for washer line hoses do exist to allow patches for line damage.
• 11008977Complaint Combustion engine could no longer be started, only electric driving possible. Cause High-voltage belt-driven starter-alternator faulty. Remedy Requirement: Prior to the implementation of the test work, it must be ensured that the person carrying out this work has successfully completed the required HV qualification to work on HV system.
• 11008885Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 2024 C-Class (206 platform) and GLC (254 platform) vehicles, the door control unit software does not correspond to current production specifications. In this case, the 12V starter battery may sporadically discharge. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the door control unit software.
• 11008879Complaint This document applies to vehicles of model series 206 and 254 from SOP (start of production) with NTG7, that do not have SA code 367: The Live Traffic Information Digital Extra is missing, is not available or does not work, even though the license has been purchased from the Mercedes me Store. Cause Problem with the store's offer provision for Digital Extras. Remedy Remedial action is currently being prepared. For the time being, do not undertake any work (SW updates, commissioning, hardware exchanges and similar). These are not effective, as an adaptation of the back end needs to be carried out first. For now, please do not add (arrange to add) SA code 367 manually. As soon as the adaptation has been implemented, this document will be modified accordingly and the necessary steps added. If a customer does not wish to wait for the fix, please direct them to contact the CAC for a refund of the Live Traffic service.
• 11008877Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) from sliding position Cause a) Sensitive parameterization of the automatic reversing function of the panoramic roof b) Sluggish operation through tolerances of various component parts in the roof mechanism, in particular, at higher temperatures Remedy a) Leave the sliding sunroof panel of the panoramic roof in the rear sliding position (fully open position) for at least 30 minutes (or overnight if necessary), then perform commissioning of the panoramic roof control unit (PSD, A98, TSSR254) b) Perform commissioning of panoramic roof control unit (PSD, A98, TSSR254) Reference to escalation closing during reversing processes (also described in Operators Manual), if vehicle in customer possession (see Video_1): If the panoramic roof blocks up when closing and then opens again slightly (reversing process): Immediately after automatic reversing, wipe forwards on the control panel of the overhead control panel and hold until the panoramic roof is closed. The panoramic roof is closed with greater closing force. If the panoramic roof blocks up again and then opens again slightly (reversing process): repeat previous step. The panoramic roof is closed again with greater closing force.
• 11008091Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone (on adhesive tape) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones (B25/20 and B25/21) Note: It is recommended to replace the cover caps. The non-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.
• 11008032Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions Cause Frictional vibrations Remedy AMG brake systems are designed for high loads. This can result in noises under certain operating conditions. These are dependent on speed, brake pressure or ambient conditions such as temperature and air humidity. (Extract from the owner's manual) If customer complaints are received, please proceed as follows: Check whether, apart from this document, an additional document exists for the model series in question, and if so, work through it Check whether the complaint can be reproduced and at which axle the noises occur (ideally together with the customer while driving) Check the friction pairings of the affected axle for wear, mechanical damage or localized overheating damage. a) If this is the case, replace the damaged component parts and assess the brake again with regard to noise. b) If there no obvious visible or technical problems with the brake system, we recommend bedding in the brakes by following the procedure below: Before trip, the mileage incurred must be clarified with the customer (approx. 50 km) Select a suitable route Brake the vehicle 15 times with a brake pressure of approx. 30 bar (have the passenger read it out using XENTRY) from 100 km/h to 50 km/h (no emergency stops and no braking in the ESP control range). Maintain a cooling distance of approx. 1.5 km between brake applications Finally drive approx. 5 km to allow the system to cool Reassess the problem If this action fails to deliver the desired success, create a TIPS case with the following information: Observe SI00.00-P-0086A Have parts already been replaced? If yes, when and which parts (date, mileage)? How is the customer's driving profile, and when/where is it reproducible? Create a video/ sound file Attach usable pictures of the brake components on the affected axle (important: including the back of the lining)
• 11007974Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy In advance, observe LI82.10-P-078301 "Headlamps or Front Fog Lamps Leaking or Fogged". 1. Prepare headlamp/check for external damage: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: A headlamp with external damage is not a warranty or goodwill case. 2. Leak test of headlamp with overpressure: Connect test adapter to pressure tester. (Figure 1) Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. Seal all the outlet openings using sealing compound and the given diaphragm with the plunger (picture 3). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged. If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is not leaky and the problem is down to natural physical fogging. If a pressure drop of more than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. Replace any leaky headlamps. Note: Desiccant packs can be installed for headlamps that are not leaky. See: LI82.10-P-064766 Fogged headlamp, desiccant pack installed - open ventilation system LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system
• 11007753Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Headlamps comply with all applicable standards. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 C/+64.4 F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for a defect. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A Damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. Open ventilation system: LI82.10-P-064766. Closed ventilation system LI82.10-P-078304
• 11007728Complaint To insure vehicle down time is kept at a minimum and all required information is available when case is escalated, as well as assist technicians with checks that may help lead in resolving issue without case creation. THIS LI IS NOT TO BE USED AS A REASON FOR CASE CREATION BUT AS A GUIDE IF A CASE IS NEEDED Cause There are, at times, additional steps workshops can do to help diagnose and rectify transmission complaints. Remedy When opening a case for transmissions a EEPROM, Quick Test, and VGS CUL are absolutely necessary Please also check for any relevant LIs before opening case. Also, recommend having customer fill out Transmission Drivability Diagnostic Worksheet especially if complaint is hard to reproduce or intermittent (Work sheet Location: Xentry Portal >> Local Contents >> Diagnostic Info>> Diagnostic Worksheets ) If a previous repair attempt or visit was made for the same concern please include the date, mileage, and case number if applicable of that repair/visit with a short description of what was done. Follow IPR: ( LI27.00-P-073124 ) All IPR suggestions are covered by warranty and there is no need for cases to confirm IPR. Complete IPR suggestions and close out IPR process. If complaint is not fixed and IPR still suggests the same repair once closed out and run again, then a case may be needed. Transmission Health page is a good indicator of issues within transmission if clutch or brake pack stays NOK after adaptions and unable to be made to a green OK then an internal fault is present. Proceed with replacing affected clutch pack. IF more than 3 are red and NOK replace transmission (include printout with warranty claims) **** FOR 167 chassis with M264 engine B08 may be red and NOK, IGNORE this, B08 is still okay **** Shift complaints: Note: AMG variants are known to have a harsher shift see LI27.60-P-075147 It is always worth comparing to a like vehicle if possible to see if shift is uncharacteristic Perform Valve flushing procedure Perform 5 Torque Converter adaptions in a row (Save the results page) Perform standstill adaptions (Save the results page) Drive adaptions if necessary: Drive C mode keep RPM between 2000-2200rpm and lightly let off pedal to force shift wait 2-3 sec then roll on throttle to rpm back up to 2000-2300 rpm repeat for gears 1-3 *For gears 4-8 allow rpm up to 2700 and let off slightly to force upshift = repeat x 10 *For downshift - highest gear possible 8 or 9 - allow decel with light brake drag (allow at least 5s between downshifts for trans to adapt. Go down to 2nd and repeat x10 *Change to sport mode and repeat process again *Lock car to allow sleep at least 10min and restart and road test for quality. After adaptions a new EEPROM should be recorded and included with the original if opening a case Understand shift complaints need to be reproducible to address. If needed drive with client to reproduce the complaint. If shift complaint is intermittent a CAN trace of the issue occurring will be useful (see attached instructions) Shudder: If there is a shudder monitor torque convertor actual values to see if it occurs during slipping, Additionally can lock up convertor and drive to see if issue is resolved Jolting/Shudder: If the vehicle is AWD: unplug AWD control unit or drive vehicle in dyno mode to see if transfer case is causing the jolt/ harsh shift If located from transfer case check fluid and perform a flush if needed to try to rectify the issue. Vibrations: NVH trace is needed, what level vibration is being experienced and where is it located? Is the Vibration felt in neutral? Dyno mode? Does it change with speed? Etc. Noise complaint: Isolate the noise location using chassis ear. MUST attach a sound recording or video of the noise. Describe when the noise is present: Does it change with gear or speed? Does it occur with vehicle in neutral or in glide mode? Does operating temperature effect noise? Does incline/decline or steering angel effect noise?
• 11005294Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing fogged/condensed rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4 F) Note: Do not wash the vehicle or subject it to high-pressure cleaning before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the trunk. 4. Switch on the exterior lighting. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation -> a significant reduction in the formation of condensation must be clearly recognizable (defogging progress).
• 11003212Complaint Noticeable vibrations at the steering wheel: At speeds between 40mph and 75mph On straight stretches of road and in long corners With driver assistance systems switched on Cause Control oscillations in the electric power steering. Remedy Perform software update of electric power steering (N68). Note: Please ensure newest Xentry release software is installed and all addons are updated. After the software update, teach in the steering limitations of the electric power steering again: 1. Start engine 2. Turn steering wheel all the way to the left and briefly hold at the steering limitation 3. Turn steering wheel all the way to the right and briefly hold at the steering limitation 4. Perform a test drive in which you drive at approx. 5-10 km/h in an "8" shape, alternately turning the steering wheel to the steering limitations on the left and right. If vibrations can still be felt following the software update: 1. Connect XENTRY and select control unit N68 - Electric power steering (ES) 2. Switch to the "Adaptations" menu item, then under the "Teach-in processes" item, run the "Special function" in full. 3. NOTE: Coding Parameter 'Shimmy' should be turned off and the actual value should read "Shimmy aus". With this function, parameters of the software are adapted to reduce vibrations in the steering wheel. If vibrations continue to occur in the steering wheel despite this action, please create a TIPS case. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.
• 11003205Complaint The driver's seat memory settings do not synchronize with the driver's user profile as described in the operator's manual. Driver's seat settings are not transferred to the vehicle. Cause The driver's seat does not support the profile synchronization feature on these vehicles. Remedy There is no remedy for this complaint. The vehicle is working as designed. Note: Do not replace any parts.
• 11003095Complaint Sliding sunroof panel of panoramic sliding sunroof reverses (temporarily, once, multiple times) during closing process without entrapment event: a) from tilt position b) from sliding position Cause a) Sensitive parameterization of the automatic reversing function of the panoramic roof b) Under analysis Remedy a) Leave the sliding sunroof panel of the panoramic roof in the rear sliding position (fully open position) for at least 30 minutes (or overnight if necessary), then perform commissioning of the panoramic roof control unit (PSD, A98, TSSR254) b) Perform commissioning of panoramic roof control unit (PSD, A98, TSSR254)
• 11000740An authorized Mercedes-Benz dealer will replace the TIREFIT bottle in the trunk of your vehicle, free of charge. The bottle may potentially leak and may not be available for use in case of a flat tire. Your vehicle must be brought to a dealer to complete this campaign. Please schedule an appointment by contacting our Customer Assistance Center at 1-800-367-6372, or locate your nearest dealer using the QR code and Find a Dealer section.
• 11000624The customer complains of a check engine light (CEL) on. May also complain of the engine running roughly and/or a loss of power. Multiple Causes Remedy Please see the document "Remedy Instructions" in attachments. For MY19+ G63 there may be an alternate solution available. Please reference LI07.61-P-076755 before performing the steps in this LI.
• 11000544Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, multiple times) during closing process without entrapment event. Cause remains open. For analysis, the information from the control unit log of the panoramic roof control unit (TSSR254) is required via a TIPS case. Further analyses Requirement: The teach-in run for the automatic reversing function of the panoramic roof via XENTRY has still NOT been carried out SW-SNR is A254 902 9702 with parameter data set A254 903 2902 or A254 903 4802 Please perform the following steps: 1. Create a TIPS case 2. Create control unit log of panoramic roof control unit (TSSR223, A98, PSD) (prerequisite: add-on 25071) and attach to TIPS case
• 11000541Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-24 C-Class, CLA, EQB, EQE, EQS, GLA, GLB, GLC, GLE, GLS, GT, S-Class, and SL (118, 167, 192, 206, 223, 232, 243, 247, 254, 290, 294, 295, 296 and 297 platform) vehicles, the MBUX system software does not correspond with the latest series production configuration. The MBUX system will receive an OTA update that includes general product improvements and robustness enhancements for a better entertainment experience. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 11000534Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 22-24 C-Class, EQE, EQS, GLC, S-Class, SL (206, 294, 295, 296, 297, 254, 223, 232 platform) vehicles, the communication module software does not correspond with the latest series production configuration. The communication module will receive an OTA software update that includes product improvements. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 11000519Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023-2024 C-Class, CLE, E-Class, EQE, EQS, GLC, GLE, GLS, GT, S-Class, and SL vehicles (205, 206, 236, 213, 214, 238, 294, 295, 296, 297, 253, 167, 290, 223, 232 platform), the tire sealant bottle may not meet specifications. The possibility exists that the tire sealant bottle may leak within the installation location. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will replace the TIREFIT bottle in the trunk.
• 10253703This is to notify you of the Service Campaign OTA update for the MBUX system software in 750,313 Model Year (MY) MY19-24 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, GT 4-door (177, 118, 257, 213, 238, 243, 247, 253,167, 290 platform) vehicles. The vehicles will not be visible or flagged in VMI or EVA. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-24 A-Class, C-Class, CLA, CLS, E-Class, EQB, GLA, GLC, GLE, GLS, GT 4-door (177, 118, 257, 213, 238, 243, 247, 253, 167, 290 platform) vehicles, the MBUX system software does not correspond with the latest series production configuration. The MBUX system will receive an OTA update that includes general product improvements and robustness enhancements for the Line Traffic Information and Point of Interest (POI) features. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer's vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 10253698This is to notify you of the Service Campaign Launch to check the regulation valve in 139 Model Year (MY) 2023 GLC (254 platform) vehicles. The vehicles will be visible and flagged in VMI as OPEN on April 19, 2024. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 23 GLC (254 platform) vehicles, the regulation valve in the low temperature coolant circuit may become stuck. This would lead to a fault message in the instrument cluster. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check the coolant valve on the affected vehicles and replace it, if necessary.
• 10253697This is to notify you of the Service Campaign Launch to update the SCN coding for the drive unit DRVU Control Unit in 66,944 Model Year (MY) 2023 C-Class, GLC, S-Class, and SL (206, 223, 232, and 254 platform) vehicles. The vehicles will be visible and flagged in VMI as OPEN on April 5, 2024. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 C-Class, GLC, S-Class, and SL (206, 223, 232, and 254 platform) vehicles, the DRVU control unit does not correspond to current production specifications. As a result, an incorrect fault stored message may appear (e.g. U188D00 and U015400) in the instrument cluster, indicating a missing signal, when in fact such signal is not required at this time. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the SCN coding for the DRVU Control Unit.
• 10252837Check right tailgate, rework if necessary Check/test procedure 1. Remove top center rear spoiler. For basic data, see AR72.20-P-4000WT. 2. Check outer top right of rear-end door for constriction and crack formation (Figure 1). a. No crack or sheet metal constriction present on outer right of rear-end door: End measure. b. Crack or sheet metal constriction present on outer right of rear-end door: Carry out work procedure. Work procedure 1. Remove side spoiler on right rear-end door. For basic data, see AR72.20-P-4000WT. The right side spoiler must be replaced. 2. Drill off crack/sheet metal constriction on outer right of rear-end door at ends using a 23 mm drill bit. 3. Clean rear-end door in processed area, apply anticorrosion protection, and rework/seal the crack with seam sealant. Ensure cavity preservation according to manufacturer's specifications. 4. Assemble in reverse order.
• 10252777Tailgate opens unintentionally. Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead. The recoding can be carried out as follows: 1. Add AO code O19 in VeDoc (O as in the letter "O" for Oscar, not the number "0"/zero) 2. EZS N73: Perform SCN coding 3. Deactivate the vehicle key (a successful deactivation is indicated by the LED lighting up 2x briefly and then 1x for a long period). 4. Place the vehicle key on the key symbol in the storage compartment and then switch on the ignition. All other vehicle keys must be outside of the vehicle when doing this! Perform steps 3 and 4 successively for all vehicle keys. Notes: 6th, 7th and 8th generation keys can be deactivated as follows: Up to modification year 22/1, by double-clicking on the locking button
• 10251176Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY20-23 A-Class, C-Class, CLA, CLS, E-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, 238, 247, 253, 167, 290, 217, 222 platform) vehicles, the communication module system software does not correspond with the latest series production configuration. The communication module will receive an OTA update to improve the system stability and allow for better accessibility of Mercedes me services. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. All customers have been mailed a letter informing them of this OTA software update.
• 10249539No audio is output either in radio mode, or with media playback via app, Bluetooth or USB. In such cases, "Playback not active" is shown in the display. Mute line between communication module N112/2 and sound control unit N40/3. Check mute cable (violet) between control units for communication module N112/2 and sound N40/3, including plug contacts, and repair or replace as necessary. If the plug contact is deformed, it is imperative that its counterpart at the control unit is also checked.
• 10249495Noises in the steering column area when steering. Under analysis. Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driver footwell or do they tend to occur in the area of the steering column switch module (MRSM/SCCM)? If the noises occur in the area of the MRSM/SCCM, work through the following points: - Loosen screws of the MRSM/SCCM and steering wheel, re-align the MRSM/SCCM, and re-fasten the screws (see WIS). Sometimes there is stress at the MRSM/SCCM and noises occur. - If noises continue to occur, swap the MRSM/SCCM into a vehicle without any (noise) complaints. - If the noises occur with the MRSM/SCCM complained about when it is in the vehicle without a complaint (donor vehicle), the MRSM/SCCM can be replaced. - If noises also occur in the customer vehicle with the MRSM/SCCM from the reference vehicle, the MRSM/SCCM is not the cause and must not be replaced. Notes: - When installing the MRSM/SCCM, make sure that no damage occurs! - Only disassemble and mount all component parts in the "straight-ahead position" (see also WIS). - Please refer to this LI in the "Notes" section of the warranty claim!
• 10249482The steering wheel generates grinding noises between the steering wheel and steering column switch module during steering maneuvers See example file in the attachments area: Lenkrad-Schleifgerusch_SteeringWheel-GrindingNoises.mp4 The plastic cover on the back of the steering wheel is not positioned correctly and may therefore rub against the steering column switch module Please use the following noise files for the damaged part analysis: 1. Grinding noise | pot. cause: steering wheel | see attachment: Lenkrad-Schleifgerusch_SteeringWheel-GrindingNoises. mp4 2. Creaking/cracking noise | pot. cause: steering column switch module | see attachment: MRSM-Schleifgerusch_ SCCM-GrindingNoises.MOV If the noise is due to the steering column switch module, please use LI46.10-P-077314. Check for grinding areas on the steering wheel: Please check the covers on the rear for protrusion and, if necessary, remount. 1. Mask off openings on back of steering wheel with adhesive tape 1. Mark the back of the steering wheel with colored chalk (see Picture 1) 2. Mount steering wheel on steering column switch module and turn the steering wheel from left lock to right lock ten times. 3. The chalk will now have disappeared in the areas where there is rubbing (see Picture 2) Warning: Ensure that no cables and visible areas of the steering wheel are damaged. The abrasive excess material on the back of the steering wheel must be carefully removed with a Dremel tool. Tip: You will need to remove approx. 0.1 mm to 0.3 mm of material (example: Picture 3) Make sure that none of the ground-off material gets into the steering wheel. After removing the material, clean the entire back of the steering wheel with a 1% soap solution.
• 10248212In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC ("MBUSA") is extending the warranty coverage on the engine thermostat (including software update) installed in certain Model Year ("MY") vehicles (with engines M176, M177, M178) listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15 years/150,000 miles (whichever occurs first), due to the following condition: In the affected vehicles, the sealing ring in the engine thermostat could detach, causing a delay in the heating of the engine coolant. This may also cause the check engine Malfunction Indicator Lamp ("MIL") to illuminate. Please follow the work instructions added to this NCU to remedy the issue. Please be advised that all repairs being claimed under this extended warranty must have a quick test uploaded with the following fault code information and may be audited. P012800 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) All repairs found to be functioning properly or without proper documentation will be returned and the claim debited in full. Only the following damage codes and parts may be claimed for the aforementioned repairs: Damage Code(s): 20102 - Insert, coolant thermostat o 52 - Does not operate correctly o 41 - Hard closing 20103 - Housing/cover, coolant thermostat o 73 - Electrical fault 2030T - Heating element, coolant thermostat o 53 - Insufficient effect/power o 73 - Electrical fault
• 10248203Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, CLA, CLS, E-Class, EQB, GLA, GLB, GLC, GLE, GLS, AMG GT (177, 118, 257, 213, 238, 243, 247, 253,167, 290 platform) vehicles, the head unit software does not correspond to the current series production configuration. The head unit will receive an OTA update to optimize the "Live Traffic Information" service for the navigation system. Additional product improvements including infotainment system robustness will be implemented. The software update will be downloaded in the background. The subsequent installation takes roughly 45 minutes and requires the customer's consent in the vehicle. During installation, the system can be used without restriction. The new software will be active after the vehicle has been switched off. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 10248195Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY19-23 A-Class, C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, 238, 243, 463, 247, 253, 167, 290, 217, 222 platform) vehicles, the communication module system software does not correspond with the latest series production configuration. The communication module will receive an OTA update to improve the system stability and allow for better accessibility of Mercedes me services. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.
• 10248167Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2023 GLC (254 platform) vehicles, the panoramic sliding sunroof control unit software does not correspond to the latest series production configuration. In rare cases, the sensitivity of the automatic reversing function may prompt an incorrect reversal of the sliding sunroof panel. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the Panoramic Sliding Sunroof Control Unit software.
• 10248162Crease formation on genuine leather seat covers in vehicles with low mileage Objects left on the seats for extended periods of time (pressure marks). Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). Light initial creases due to vehicle handling. Light creases in the outer covers originating from the production process (missing finish). Heat treatment of the seat covers using heat gun and plastic wedge. Be very careful to not overheat the seat material!
• 10244748Mercedes-Benz AG (MBAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY21-23 C-Class, EQS, S-Class, SL, EQE, GLC (206, 296, 297, 223, 232, 294, 295, 254 platform) vehicles, the head unit software will be updated remotely to MBUX 2.4. With this update, customers will benefit from many new functions and features, such as video streaming (note that the Entertainment Package Plus is required for streaming and can be purchased from the Mercedes me Store by the end of 2023), Dolby Atmos, MBUX Voice Assistant (NewsFlash & Tourguide), a personal decorative image on the front passenger display, and more. Please see NCU issued on September 5th, 2023 from Product Management and Digital House team Additional New Connected Features Coming Soon. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge without an additional workshop visit via the data link of the communication module. No customer letter will be mailed for this software update.
• 10244745Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, multiple times) during closing process without entrapment event. Sensitive parameterization of the automatic reversing function of the panoramic roof. Perform SW update of panoramic roof control unit (PSD, A98, TSSR254).

Every Mercedes-Benz AMG GLC63 S model year

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