Mercedes-Benz C300 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz C300

Mercedes-Benz C300 Problems

Cracked Driveshaft Flex Discs May Cause Driveshaft Movement/Vibration

A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.

Replace Brake Rotors When Pads are Worn and Squeaking

Due to the size and material used on the brakes of these vehicles, the brakes may start to squeak around the 50 percent wear point. The brake rotor surfaces become uneven, causing a lip to form at the outer edge of the rotor. Because of this, the rotors are usually replaced when the pads are worn (pad life varies depending on driving style and terrain).

Flush Brake Fluid Every Two Years

It is not uncommon to encounter premature failure of the anti-lock brake system (ABS) modulator assembly due to dirty brake fluid. Our technicians recommend flushing the brake fluid every two years in order to help prevent this problem.

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Mercedes-Benz C300 Questions

Engine malfunction indicator On. Diagnostic code PO456. Some time it noticed that fuel dripping right rear tire area and sometime smell gasoline out side of car. how can I fix? (1 answer)

need to know the symptoms of air in brake lines on a 2011 C300 mercedes benz 3.0 luxury sedan? (1 answer)

the other day i was driving my car when from anywhere the brake pedal gets really heavy to stop the car, it does not goes down to stop the car fast three hours later it was fine. We have been serve the car for a problem in the front suspension where they supposed to remove front rotors and brakes...

What is the causes of check engine light to come on? (1 answer)

The engine operates fine and the car still runs well.

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Mercedes-Benz C300 Recalls

Glass Sunroof Detaches From Vehicle

The panoramic sunroof glass may not be properly bonded to the vehicle, and may detach and fall while driving. Dealers will inspect the bonding of the rear sunroof glass panel and replace it as necessary free of charge to resolve the concern.

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.

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Mercedes-Benz C300 Reviews

Wish I had bought a Ford. This thing is never in working order. Never out of the shop. Now having check engine lights constantly. Dealership charges $121.00 to do what O'Reilly's does for free. Every day I pray a Ford drops in my lap.
The Mercedes C300 is a solid, comfortable, and capable car. Hate the tire pressure monitor, but only because it's accurate. I have had problems with the lights that I shouldn't, so that's not great reliability for a new car. The interior trim does look and feel cheap in places, and I'm not convinced it's well made.
This is my first Mercedes car (2009 C300)that I've purchased. I traded a 2001 BMW330i that I had for approximately 10 years. I fell in love with the car. It looks great and rides great. Unfortunately....I have been dealing with this annoying waxy or crayons smell which the dealer is having a difficult time in eliminating. They've treated the evaporator coil, changed the cabin filter, scrubbed t...

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