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2008 Mercedes-Benz CLK350 Problems

RepairPal has identified the most common problems with the 2008 Mercedes-Benz CLK350 based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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22
Known Problems

When starting the engine after sitting for several hours, a knocking sound may be heard for several seconds. This is a common issue with the 2006-2009 Mercedes Benz CLK350. There are three common problems that can cause this sound to occur:

-Oil pressure building too slowly, allowing for movement between the crankshaft and crankshaft bearings

-Stretch or wear of timing chain and components

-Balance shaft (counter rotating shaft) gear wear

The remediation for these problems can be crankshaft bearing replacement with correct size, replacement of timing components, or balance shaft replacement.

Computer control modules for the seats and doors, the CD changer, and the brake lamp switch tend to fail.

Ball joints can wear out prematurely, causing wear in the tires.

The power steering reservoir designed for the 2006-2014 Mercedes Benz CLK350 commonly leaks power steering fluid causing a screeching sound when turning the steering wheel, especially when the vehicle is stopped. The power steering light may illuminate on the dash for more severe leaks.

This is caused by cracking in the plastic reservoir, or a hardened, brittle seal between the power steering reservoir and power steering pump.

Remediation involves replacing the power steering fluid reservoir, power steering fluid, bleeding the system of air, and replacement of the seal between the reservoir and power steering pump.

Torque thrust bushings in the front suspension may crack and leak oil, this causes steering alignment problems and excessive tire wear. Another symptom of a worn bushing is a clunk or thud noted when turning, on hard acceleration, or hard braking.

Cup holders in the dash are known to break requiring repair or replacement.