Mercedes-Benz C320 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz C320

A repetitive clicking noise from behind the center area of the dash panel is usually caused by a broken stepper motor actuating arm. The actuating arm controls the direction of air flow in the climate control system. Disassembly of the center console will be required to access and change the broken arm with the updated, reinforced part.

A dead battery can be caused by a faulty seat control module that does not properly shut down.  Spilling liquids on the front seats can cause these modules to fail.

The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

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Can a SRS error code be turned off without repairing the problem. Can a non mercedes shop clear a code?

The SRS light was on so they took it to a Mercedes shop to clear the code. When I got the car back the rear passenger seatbelt was not working. I called Mercedes and they said carmax wanted them to clear the code but they couldn't because it needed repaired. Car ex told them not to repair it....

Hatchback is very hard to open, sometimes will not open. Seems to be the actuator. How can I fix it ?

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There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.

Certain passenger vehicles equipped with sport model steering wheels fail to comply with the requirements of the Federal Motor Vehicle Safety Standard # 208 "Occupant Crash Protection"In certain tests conducted by NHTSA, using an unbelted female crash test dummy, conditions were found that occupants may not be properly protected during a crash, resulting in injuries. Dealers will install a new airbag module free of charge. The Mercedes recall # is 2006020005

 

Some seat belt buckles may have a burr on a metal component of the locking mechanism. This could prevent the seat belt from locking under certain conditions. In the event of a crash, the seat occupant may not be properly restrained, increasing the risk of injury. Dealers will replace the affected seat belts. This recall is expected to begin on December 22, 2003. The Mercedes-Benz recall number is 2003 120006.

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I bought my C320 in 2007 with 42K on it. Good records on service history. I do my own work which I believe everyone should with the prices these dealers charge. It really is not hard, and you will save tons of $$$. There are many great sources for help and instruction on-line that are very useful. My problems have been: Shade for back window stopped working. I live in NM and it stopped worki...

I have a 2001 C320 engine light was on took to repair shop an they change 02 sensor and engine light is still on .what else could this be

Great car to drive, but be aware of the high maintenance fees.

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