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Resources for the Repair and Maintenance of your 2009 Mercedes-Benz C350

2009 Mercedes-Benz C350

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2009 Mercedes-Benz C350 Problems

Engine -- Verified

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.

Electrical & Lights -- Verified

The CD changer may suffer from an internal mechanical problem. Replacement of the faulty unit is generally required to correct this issue.

Drive Train -- Verified

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.

Suspension & Steering -- Verified

A knocking noise from the upper front strut area can be caused by the hold down nut for the strut coming loose and can be repaired without removing the strut assembly.

Brakes -- Verified

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).

2009 Mercedes-Benz C350 Questions and Answers

Visitor, 2009 Mercedes-Benz C350, Milton, DE

How do I get the cover off the battery?

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2009 Mercedes-Benz C350 Reviews

I AGREE, Biggest trade off is with the tires. I finally got into some Michelin's that are GREAT! they were a tad bit more pricey, and they can be rotated from side-to side.. that is the best part. i'm able to get more wear from these tires than the ones that are recommended by the manufacturer.

Now 12500 miles since new. Great drive train with great acceleration and braking.
Service A done to Mobil One at 1/2 of dealer's cost. Easy maintenance! Summer tires are great, but trade-off is thread wear--may last another 8K. Use Winter tires/rims--great for the past 2 stormy winters in Northeast.

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