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Resources for the Repair and Maintenance of your 2003 Mercedes-Benz C320

2003 Mercedes-Benz C320

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2003 Mercedes-Benz C320 Problems

Heating & Air Conditioning -- Verified

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.

Electrical & Lights -- Verified

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.

Engine -- Verified

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

Miscellaneous -- Verified

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.

Drive Train -- Verified

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.

2003 Mercedes-Benz C320 Questions and Answers

lsmith, 2003 Mercedes-Benz C320, Los Angeles, CA

This started yesterday. I drive down into a parking structure turning left going down. My car started making a funny noise when making the left turns. Could this be a low power steering levil or...

lsmith, 2003 Mercedes-Benz C320, Los Angeles, CA

I started hearing a ticking noise that sounds like a drop of water hitting the top of the car. It may be coming from the dash I am not sure. What do you think this is?

nomoney, 2003 Mercedes-Benz C320, San Diego, CA

Why would engine mounts need to be replaced after only 10,000 miles? What causes a rear main seal to start to "seep" after only 67,000 miles? Why do the thrust arm bushings keep cracking?

Visitor, 2003 Mercedes-Benz C320, San Diego, CA

For the past week or so, I've heard a faint rattling when I'm driving my car. It's never really loud, but I got to worrying and brought it in to the mechanic. Supposedly it's th...

da11as214, 2003 Mercedes-Benz C320, Vineland, NJ

When turning left or right, I hear a noise underneath. What can it be?

Write a Review About Your Car

2003 Mercedes-Benz C320 Reviews

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...

Awesome car, great ride, fun to drive!

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