Resources for the Repair and Maintenance of your Mercedes-Benz C320
Mercedes-Benz C320 Models:
Mercedes-Benz C320 Problems
Clicking Noise From Behind Center of Dash
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.
Dead Battery Due to Failed Seat Control Module
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.
Stalling and/or "Crank no Start" Due to Failed Crankshaft Position Sensor
The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Inside Grab Handles/Upholstery/Door Trim Panels May Delaminate
Inside grab handles, the upholstery on the center console cover, and door trim panels can delaminate. Most commonly replacement of the affected part is necessary.
Transmission May Leak Fluid and Damage Control Module
The electrical connector at the automatic transmission may leak fluid. Over time leaking fluid could migrate through the wiring harness and damage the transmission control module. If that happens a new harness and control module may be necessary to correct the problem.
Mercedes-Benz C320 Recalls (Recent)
Air Bags in Sport Model Steering Wheels May Fail to Deploy Correctly
RepairPal Expert Overview:
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
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One or More Seat Belts May Not Lock as Designed
RepairPal Expert Overview:
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.
Learn more »Incorrect Software Calibration May Cause Fuel Pump to Remain Powered in a Collision
RepairPal Expert Overview:
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.
Learn more »Mercedes-Benz C320 Questions and Answers
when i crank my car my eyes burn after sitting in the car about ten minutes. whats that. is that an exhaust peroblem. please respond with a answer. im lost with words on whats wrong and nobody know...
My tele aid was checked at dealer and it has a fault is there any way to bypass or remove the unit. it drain my battery.
if tele is unpluged and codes come up will the computer stay active searching for signal and still cause another draw to drain battery?
when the air condition is on, it blows out warm air. what are the signs of the compressor gone out.
where is the oil drain plug located and how does itlook like under the engine?
Mercedes-Benz C320 Reviews
I purchased my vehicle, the Sport Model with 18" with 207,000 miles and it is a gem. Put in new Air Filters (2) and increased mileage substantially. Rear shocks were bad but I replaced them. So far though, the blower will not go off. It blows full force even if the temperature is turned to '0'. I have replaced every part associated including the control center and still the problem exists. I'm going to change the cabin filters and hope that does it before taking it to Mercedes. Despite the problem with the heat, I love this vehicle.
to maintain your benz is more than a normal car that is unless you or someone you know can work on it. its more to take somewhere and have a shop do it. i had to replace my lower control arm shop said 1400. i got online found the part for 550 thats all it cost because i replaced it myself so it will cost more if you can not do the repair youself buy haynes book from autozone it will show you how to take the whole car apart and put back together good luck
I just bought this used car and not aware that the passenger front seat was not locked in place. Only the wiring is connected and its very unstable. Is there locking mechanism that I can buy to secure this seat?
150,000 kilomters 2003 C320 4 Matic Great Comfort Great Power Great Taction. You wan't to drive the ultimate machine, You have to expect a lil higher maintainance. Can't afford the mertz get a hyundai or a Kia. You'ell definatley save on maintenance. I love my Mertz...
Today, when I got in the car to go to work, the front driver seat was all the way forward and would not move back. I had to drive all the way to work with the steering almost touching my chest. Tried everything and I can hera a click when I try to move the seat. I guess the motor went bad and there is no way to manually move the seat until I can replace it. Any ideas..?