general problems of the 2002 Mercedes Benz C320

Tl- the contact owns a 2002 Mercedes Benz C320 wagon. The contact stated that the battery continued to drain after turning the vehicle off and the vehicle would not start. The vehicle was taken to the local mechanic who diagnosed the driver side electrical seat module was faulty causing the battery to drain. The module was unplugged to stop the battery from becoming drained. The manufacturer and local dealer were not notified of the failure. The failure mileage was 114,00 jft.

Seats control module.

The seat control units do not shut off and continually drain the battery. This is a widespread problem for this model car.

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.

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.

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.

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.

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.

2002 C320 Mercedes Benz electrical seats draining battery.

I own a Mercedes Benz C320 and lately I've been experiencing some problems, few weeks ago, my car wouldn't start all of a sudden. I jump started and I noticed 2 faults . . Esp warning light and light sensor ,for some reasons something was draining my battery, I went and purchased a brand new battery and 2 days later it did the same thing again, I was told that it was a seat sensor that caused it,s o we unplugged the seats, everyting seamed fine for like 4 to 5 days,while I was driving,the car just came to a complete stop would not move,the engine light came on, I've come to realize that I'm not the only one with this problem, I hope the government would do the right thing by recalling those vehicles.

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 $$$.

My vehicle would not start, so I received a jump, two days later when I did not drive the car it would not start received another jump and replaced the battery. Did not drive the car from 7-4 to 7-8-07 and car would start. Went to mercedes dealership on 7-9-07 and was told that it was a common problem on my car that the seat modules do not power down when the car is off and that it is draining the battery. Went to several mercedes-benz forum websites and found that there were hundreds of people having the same problem. Once the seat module are replaced for $1200. 00 that the seat modules would continue to drain the battery and would have to be replaced again and this became a cycle. . Read more...

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.

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.

Both internal seat control modules have electrical fault. Test code 8e3l-k8nnq. Found 1. 66 amp of draw (out of spec. Range) amp drop when disconnected: passenger side . 1114 and driver side: 0. 59 milliamps. 1/13 alarm sounds and battery dies. Technician replaces battery, but warns likely to happen again-many cases. 1/16 same problem. Car taken to other m-b dealership. Diagnosed as above. Replaced both modules 1/25. Dealership had trouble getting part due to unusually high volume for this repair. 18 modules gone or on reserve in one week in santa monica alone. Mercedes corporate office unresponsive. Carmax denies known fault, but reports customer with same complaint previous week.