This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
The contact owns a 2002 Mercedes Benz C320. The contact stated that the battery was drained after the vehicle was parked and turned off. The vehicle failed to restart. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the driver's side seat module was defective which caused the battery to drain. The module was unplugged to prevent the battery from being drained. The manufacturer and local dealer were not notified of the failure. The failure mileage was 114,000.
The contact owns a 2002 Mercedes Benz C320. The contact stated that the vehicle failed to start. The vehicle was taken to the dealer where the technician diagnosed that the power seat module was draining the battery and as a result, it needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure and current mileage was 81,000.
The contact owns a 2002 Mercedes C320. The contact stated he had to replace the battery in the vehicle several times. The dealer stated the seat controls for the passenger seat drained the battery and the seat control module needed to be replaced. The failure mileage was 89,000 and the current mileage 90,904.
I came out and my battery was dead without warning. I took the vehicle to downtown la motors(Mercedes Benz) dealer, where they explained that the seat control modules were staying on and causing the battery to drain. I subsequently had to unhook the seat controls and now I am unable to move my seats or steering wheel. They estimated that the repair would cost around 1500. Numerous customers have the same issue on the same vehicle, it is obvious that this is a manufacturer defect and not the fault of Mercedes Benz consumers.
I have a 2002 Mercedes C320. My battery is dead after seating overnight. Took the car to the austin mb dealership to diagnose the problem. I was told that the power seat motor is draining my battery. Both seats. Come to find out that many other people have experienced the same problem. I called Mercedes usa and they said that since the car is out of warranty, there is not much they can do. That is bull!! obviously since so many people with this car model have the same problem, it has to be a manufacturer fault. I was wondering how many people need to experience this problem before Mercedes will admit that they have a bad component on this model. I figured, if enough people call and tell mb that they have this same problem, they will realize that this is a defective part and they will issue a recall and pay for necessary repairs. Please call Mercedes usa and report this problem. 1-800-for-Mercedes (1-800-367-6372) or 201-476-6200.
Battery dies. After diagnostic, found that driver seat control unit drained battery. Replaced battery and eventually all controls fail on the seat and steering wheel. I am one of many many people with the same problem. No solution found and no recall to repair.
Mercedes 2002 C320. Power seat control module for both driver and passenger drain the battery to a extent that car can not be started up. Only solution is buy a new ($500 plus labor) control module. I've done a research in different Mercedes forums and it seems to be a common problem among these models. Mb despite of all the people having the same problem has not issued any recall.
Left and right electronic seat modules which also controls the steering wheel and others failed and mb did not want to accept the responsibility part numbers are: 2118704626 2118704726.
At 45,000 miles front passenger seat started draining the battery. Dealer told bad control unit. Because of high cost of repair ($900.), it has been disconnected. The control unit was least utilized for the passengers seat. This should not have failed under 45000 miles use.
We have a 2002 Mercedes C320 wagon. The automatic driver and passenger seats drained the battery completely where the car will not start. We have disconnected the module seats so that it will stop draining the battery. The replacement for each module system for the seat is about $500 or more. I believe this is a manufacturer's defects as it is dangerous if owners are not aware of the situation and leave their car park for a period of time will cause the owners not able to start their car, especially in an emergency situation.
Mercedes Benz 2002, C320 *steering wheel malfunction warning *seats malfunction *brake and oil fluid misleading info *battery drain *turning signals requiring new harness that cost a lot $$$.
Seat control units draining the battery if car is parked. Car will not start if parked for more then 24H. Drain amps between 1.2 and 1.4 amps. Had to disconnect the seat modules, now seats can't be adjusted.
Defective seat controller modules ( driver and passenger ) cause the battery to drain completely within 24 hours. This leaves me stranded and unable to drive my vehicle. A search online reveals multiple other with the same issues...indicating an obvious safety issue that is well known to the manufacturer with no resolution to this problem from the manufacturer other than paying $1000 for a known defective issue/part.
Faulty seat controller of a Mercedes C32 amg, drains car battery overnight, causes new battery replacement and controller replacement (not cheap - appr $400). No new controller purchased from mb usa, just disconnected plug (moving seat is inoperable). I noticed almost all us Mercedes Benz vehicles with that body style (W203) have that issue. Sources: Bay area dealerships, a repair shop and online forums.
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- Palm Springs, CA, USA