Battery problems of the 2001 Mercedes Benz C320

Malfunctioning seat control modules drain battery in 2001 C320 Mercedes Benz. Not long after purchasing the car in January 2008 with 51,000+ miles, I paid $175 dollars for a new mbz battery, before asking dealership to disconnect seat control modules. I was not prepared to pay $1200 to replace modules. June 25, 2010, my 2001 C320 stopped during a trip to phoenix, az from California, due to fuel pump going out. My 79 year-old mother and I waited in 100+ degree weather for a tow, which took 3 hours to get to phoenix mbz dealership. Oakland service rep never suggested replacing, although the car was serviced during the suggested mileage for replacement. The phoenix dealership initially replaced original fuel filter, and never thought to check if original fuel pump needed replacing. On June 28, 2010, my car stopped again on the return trip to CA, and we were towed back to az, where fuel pump was replaced. The incident cost me almost $2,000. 00 more than I planned to spend, while attending my graduation ceremonies in arizona. Considering the expense to maintain a mercedes, as well as the cost of the car, you would think the service staff would be more proactive with customer service. I suggest mercedes create a better warning system for equipment failures like the seat control modules and fuel pump. I also suggest mercedes consider lowering their service prices, so the average "joanna" can pay the maintenance to keep a dependable car. The valve cover gaskets were leaking oil and transmission electrical connector was leaking. Updated ivoq 09/10/10.

I also have a 2001 C320 since new here in south africa and I have the same problem with the electric front seats draining the battery. If it stands for more than 2 days the battery is flat. It's a problem because it also influences the other electrical accessories as the battery has to be charged and in some cases jump started. While this can be done successfully if you are stuck out of home base sometimes you cannot manage the recovery team that cause all types of voltage spikes when trying to get the car on line again. It seems ludicrous that a seat motor that does not work hard at all can cause this problem. Really not the excellence in engineering I expect from this marque. Here is the VIN no [xxx] as I cannot enter it a few steps later as it does not accept it. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Mercedes benz C320 2001 model. Power seat module shorts and drains battery. The constant draw off the system could at some point, cause a fire, while driving or over night in garage. 2 twice it was failed within a 1 yr time frame. Dealer charge $1000. 00 to fix the problem only to have it happen again. Dealer would not supply old part for inspection.

We own a 2001 mercedes C320 and have had several problems with the electrical systems all related to the power seat assemblies draining the battery over night. We have had them replaced by the dealer, first time was under warranty, and now- just about a year or so later, same problem. If we unplug the power seats, the batter does not drain. . Read more...

The power seat control units drain the battery, as they turn on and off during extended periods of rest.

I am the owner of a 2001 C320 Mercedes Benz. I purchased this vehicle back in July of 2003. I have always had complaints about my front seats draining my battery I was told again just recently that it was a problem with that model and year. I think mercedes should recall this problem and correct it immediately.

The contact owns a 2001 Mercedes Benz C320. While driving approximately 20 mph on normal road conditions, the engine stalled without warning. The engine warning indicator remained illuminated on the instrument panel until the engine was turned off. The vehicle restarted after several attempts and was taken to the authorized dealer for diagnostic testing. The technician stated that the failure was related to the engine control module (ecm). The vehicle was repaired according to the service warranty. In addition, when the outside temperatures exceeded 100 degrees, the vehicle would shutter. When the vehicle has been parked for a couple of days, the electrical system rapidly drains the battery. On three separate occasions, the vehicle was taken to an authorized dealer for identical failures without resolutions. The vehicle has not been repaired. The failure mileage was 1,079 and current mileage was 85,000. Updated 2/5/09 the consumer stated the air mass sensor was repalced. Updated 02/10/09.