NHTSA recall 78V178000
Service brakes, hydraulic › Power assist › Vacuum
Peugeot 504
The defect
Water could accumulate between the mounting surface of the brake power booster unit and the front surface of the pedal support bracket to which it IS attached. After a period of time, the water could cause corrosion, which would hinder the free movement of the power booster piston in its guide channel.
The remedy
Dealer will inspect and, if necessary, replace the brake power booster without charge to owner.