Mercedes-Benz C350 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz C350

Mercedes-Benz C350 Problems

Internal Component Failure May Cause Rough Shifting

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

Camshaft Adjuster Solenoid Failure

The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.

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.

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Mercedes-Benz C350 Questions

My 2008 C350 shut off wont start. Is it the ignition or the battery? ? (2 answers)

the car drove and park came back out nd it won't start,the lights came on with key in ignition but won't start.

why is gas gauge inaccurate, why is there not a recall on this known problem? (1 answer)

i'm not the only one whose c350 has run out of gas due to the gas gauge being wrong! why is this? how much to fix it? why is it not a recall? it is dangerous to suddenly run out of gas when your car tells you you have 100 miles worth of fuel left, and the gauge is above 1/4 tank. anyone?

engine will not turn over. new battery. (1 answer)

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Mercedes-Benz C350 Recalls

Driver's Frontal Air Bag Inflator Ruptures And Sprays Metal Fragments

The driver's frontal air bag inflator may deploy the air bag with excessive pressure, resulting in the inflator rupturing and causing metal debris to be sprayed onto vehicle occupants. Dealers will replace the driver's frontal air bag module free of charge to resolve the concern.

Air Bags Unexpectedly Deploy Or Do Not Function When Needed

The air bag control unit may corrode and cause it to malfunction, resulting in air bags that deploy when not intended, or do not deploy at all in an accident. Dealers will inspect and replace the air bag control unit as needed free of charge to resolve the concern.

Tail Lights May Dim Or Fail

The tail lights of the vehicle may dim or fail because of a poor electrical ground connection. Dealers will replace the bulb holders if not previously updated and replace any corroded connectors free of charge to resolve the concern.

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Mercedes-Benz C350 Reviews

Overall it has been a good car without any significant problems. It is not a DIY friendly car. As an example, if you want to change the oil you have to drop 2 underside cowlings just to get to the drain plug. The transmission service requires special oil and although I have changed fluid on many other cars I will leave this to a trans shop. Expect to pay 2-3 hundred for the service. The car has...
We bought the C350 Sport Model brand new. Now it has about 76k miles. My wife loves loves loves this car. I like the exterior looks. The interior is nice too. Nav is just OK. Controls take a bit to get use to. Likes to eat rear brake pads. Over all I'd give it a 8.9 out of 10.
I purchased a 2014 CPO C350 with 2,000 miles. during the first 700 miles the car seemed OK and I decided to keep it. When I started to travel back and fourth to work on a regular basis I found that the rear suspension very harsh, even the smallest bumps are amplified and the read seems to bounce excessively. I have taken my C350 back to MB service. The changes the tires, and were very accommoda...

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