2015 Smart Fortwo

Owner complaints

What owners report most

1. Engine2
2. Unknown or other2
3. Fuel/propulsion system1
4. Air bags1
5. Suspension1
6. Traction control system1
7. Seat belts1
8. Electrical system1

Latest complaints

• Mar 26, 2025TXFire
  Electrical system · Engine

  Sunday 3/23 I was driving west on 225 heading towards work, all of a sudden the check engine light comes on and all kinds of other lights on the dash came on. I got pulled over and looked in the rear view mirror I seen flames. Quickly grabbed my stuff and got out of the car. The investigation at the time stated most of the heat was coming from the engine

• Jul 14, 2023NC65,000 mi
  Seat belts
  The contact owns a 2015 Smart ForTwo. The contact stated while buckling the seat belt, he became aware that a metal cable through the eyelet bolted to the frame by the door jamb on the driver's side had started to fray. The contact stated that the vehicle was not driven frequently and felt that…

  The contact owns a 2015 Smart ForTwo. The contact stated while buckling the seat belt, he became aware that a metal cable through the eyelet bolted to the frame by the door jamb on the driver's side had started to fray. The contact stated that the vehicle was not driven frequently and felt that there could not be a wear and tear issue. The contact had not taken the vehicle to a local dealer. The vehicle had not been diagnosed and had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 65,000.

• Apr 21, 2021NY10,000 mi
  Fuel/propulsion system · Suspension · Unknown or other

  Car has major delays many times when you hit the gas pedal - you can be turning into traffic at times and there's a major delay to propel the vehicle forward when your foot IS on the pedal - this delay in getting the car moving could cause a major crash. motor mounts wear out under 50,000 miles seems too soon when compared to most other vehicles - suspension (shocks) come super hard from the factory.

• Oct 15, 2020MA53,000 miCrash1 injury
  Air bags

  I was driving on the highway a safe distance behind a lincoln navigator when they for no reason slammed on the brakes and stopped. I ended up rear ending the navigator. The rear of the car went up into the air came down and spun around three times before coming to a stop. My wife was injured. She sustained a broken rib cuts and scrapes and chest pains. No airbags never deployed in the car at all.

• Jan 10, 2019OH12,000 mi
  Engine · Traction control system
  TL* the contact owns a 2015 smart fortwo. While driving various speeds, there was an abnormal knocking noise coming from the engine compartment and the traction control warning indicator illuminated. The vehicle was taken to mercedes-benz of north olmsted (28450 lorain rd, north olmsted, oh 44070…

  TL* the contact owns a 2015 smart fortwo. While driving various speeds, there was an abnormal knocking noise coming from the engine compartment and the traction control warning indicator illuminated. The vehicle was taken to mercedes-benz of north olmsted (28450 lorain rd, north olmsted, oh 44070, (440) 716-2700) where it was diagnosed that the steering angle sensor caused the anti-lock brakes to seize. Also, the motor needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that the warranty would not cover the repair. The failure mileage was 12,000.

• Jul 24, 2017AR16,325 mi
  Unknown or other

  Was driving down the road and my vehicle suddenly died-was not out of gas- took a while and started but shook violantly and didn't stay started- waited a while longer and it started and was able to drive it home.

Defect investigations

NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.

• Pedestrian alert sounds

  DP22005Opened Jan 27, 2023Closed Aug 7, 2023Recall 22V063000
  NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for…

  NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

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.

• 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.
• 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.
• 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
• 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).
• 10170540smart media system, reversing camera inoperative after software update and subsequent SCN coding
• 10167526Highline can only be operated to a limited extent or not at all; the input points (contact points) are shifted horizontally relative to the display; calibration is not possible.
• 10167515PreConditioning of the vehicle via the Vehicle Homepage or the instrument cluster does not function or is restricted.
• 10167514PreConditioning of the vehicle via the Vehicle Homepage or the instrument cluster does not function or is restricted.
• 10167486Range does not meet customer's expectations. Customers usually differentiate as follows: 1. Total of distance driven + indicated range remaining with one HV battery charge too low 2. Actual range until the drive system shuts down too low
• 10167028If the Radio 9 was switched off while driving, it can switch itself back on again the next time the engine is started.
• 10167004Creaking, grating or grunting noise while steering audible in the steering gear area. The noise can be transferred through the steering gear into the interior. The noise occurs, in particular, at high temperatures, e.g. in the summer.
• 10158261Reversing camera nonfunctional on vehicles with code 805 YoM 14/1 (MY15)
• 10157087Switching noise from climate relay
• 10154012Smart audio system - Radio inoperative - New software available
• 10154008Media system, poor sound quality via AUX IN
• 10153996Vehicle Range ? Voltage difference of cells too great
• 10151978Vehicle does not start
• 10151977Vehicle does not start
• 10151976Vehicle does not start
• 10151975Vehicle does not start
• 10151974Vehicle does not start
• 10151956smart media system: Telephone connection is made, communication is not possible
• 10144276Light switch/combination switch, fault code stored
• 10144134Condenser leaking
• 10144079Charging socket/charging cable: Charging cable lock jams (P12E900, P13E800)
• 10144078Vehicle cannot be started (FC: P0A0A00, P0A0E00, P0D9F00, P1D0BFD, C11C187, P0D5800, P0D5900, P0D9900, P0D9A97)
• 10144064ATA triggers without obvious cause
• 10136113Engine diagnosis warning lamp (CEL) is active due to fault codes - P2237 & P2626.
• 10136106Installation position of suspension springs at rear axle
• 10136058smart media system displays Renault R-Link pop-up
• 10136015Brake pedal/carpet seal does not fit properly
• 10135990Preparation for Performing Maintenance Service or Status Check of High-Voltage Battery
• 10135930Charging complaints - Initial analysis
• 10135892smart audio system - time is not shown
• 10135882ATA goes off
• 10135836Instrument cluster - Fuel gauge does not indicate "Full"
• 10135709Smart 453 Engine diagnosis warning lamp activated - Fault code P261000
• 10135686Outside door handle does not return to end position
• 10135666Instrument cluster - Fuel gauge does not indicate "Full"

Every Smart Fortwo model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.