Mercedes Benz C320 owners have reported 3 problems related to automatic transmission (under the power train category). The most recently reported issues are listed below.
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.
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The transmission has repeatedly locked in 2nd gear. The electrical system shows constant light, coolant and air bag failures. The memory for seats, mirrors and the steering wheel defaults about 30% of the time. I bought this car through m-b diplomatic sales program while serving in canada and brought it to the USA on retirement. M-b canada won't help because the car is in the us. M-b USA won't help because I bought the car in canada. M-b corporate in germany simply referred my case back to m-b USA. I am now out of warranty. I want m-b to extend the warranty another 4 years or 50k miles. The car is a disaster.
See all problems of the 2002 Mercedes Benz C320.
I leased a 2002 mercedes c32 in December of 2002. Its a documented fact mercedes has been experiencing a high number of defect complaints with this model car. Recently for me was the most serious. . On December 26th 2004, while merging onto a major highway(i95) my car's automatic transmission went into neutral while in the drive position. I had to pull over on the side of the highway put the car into park then back to drive to resolve the problem. I notified mercedes on 12/27, at an appointment I had previously scheduled for other problems. Mercedes after holding the car for a week diagnosed it as a transmission control issue. I had to wait four weeks for a replacement to arrive from germany. In January 2005, while waiting for this part to arrive the same incident occurred while merging onto the same highway the car went into neutral. I again found myself on the side of the road resolving the problem. At the end of January my car was finally fixed by mercedes, I received the car on a Tuesday. On the following Sunday I pulled into a parking spot, put the car into park and turned off the ignition. My car jumped a 10 inch high curb and when I tried to get the ignition it did not respond. I had the car towed to mercedes who diagnosed a broken transmission pin. I drove the car for the next few weeks which the fear of the transmission problem recurring. I eventually stopped driving the car and contacted mercedes. I asked them to consider taking the car back, its has 8 months remaining on a 3 year lease. They in turn took the car for a week drove it for 60 miles then diagnosed the problem has been resolved. In my right mind I cannot drive this vehicle for fear of killing myself and others. Mercedes has washed their hands of this situation.