2003 Mercedes-Benz CLK430 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz CLK430

Repair Estimates

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2003 Mercedes-Benz CLK430
$
166
to $
301
2003 Mercedes-Benz CLK430
$
397
to $
526
2003 Mercedes-Benz CLK430
$
584
to $
884
2003 Mercedes-Benz CLK430
$
254
to $
449
2003 Mercedes-Benz CLK430
$
1,750
to $
2,233

2003 Mercedes-Benz CLK430 Problems

Cables in Convertible Top May Break

Cables in the convertible top tend to break. If the convertible top stops operating prior to reaching the desired open or closed position, the micro switches that sense the position of the top may have failed.

Leaks From Hose that Connects to Receiver Drier May Cause Poor AC Pperformance

Poor AC performance may be caused by a refrigerant leak from the hose that connects the receiver drier to the AC condenser.

Failed Exhaust Catalytic Converter May Cause Rattle From Beneath Vehicle

When the engine is running, but the vehicle is not moving, a rattle heard from beneath the vehicle could indicate that one of the exhaust catalytic converters has failed. The substrate (the internal part of the catalyst that reduces emissions) can loosen and bounce around inside the canister section of the converter—the defective unit will need to be replaced. If this problem is ignored, the substrate can break down and reduce to a size that plugs the outlet pipe, which will cause a sudden loss in power.

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2003 Mercedes-Benz CLK430 Questions

My car is a Convertible. It will not shift out of Park. My car has 75211 miles, that is 2000 miles since I bought it (74211). (1 answer)

suddenly the ESP/BAS lights comes on it was working perfect (2 answers)

a series of steps were : if I left the lights on for just about 3 to 5 minutes, the car it will not start . it needs jumper then the soft top stop working the switch it is no longer illuminated, last the alarm lights does not come on (flashing)finally the BAS and ESP lights are stedy on

Common problems (1 answer)

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2003 Mercedes-Benz CLK430 Recalls

Incorrect Software Calibration May Cause Fuel Pump to Remain Powered in a Collision

There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.

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2003 Mercedes-Benz CLK430 Reviews

i just love this car.i bought in 2008 it has 25,000 miles on it.now it has 125,000 and it still drive the same.just change air filter that was it.
Purchased an 03 in 2009 with 23k on the odo, no problems of signifigance, and unlike newer "electronics filled" benzes there's not too much that can/does go wrong with these. Stock ride is a little "floaty" (for those who prefer a more performance oriented ride), and the car is a little under powered, as compared to 2010 V6's or turbo 6's.. but still a great car with a CLASSIC look!
I purchased this car for my wife in October 2006. She loves the car - I enjoy driving it too when I'm allowed to do so. My only complaint is the high cost of maintaining it. The cost may be a function of the high dealer cost here in Charlotte - I'm reluctant to take it to an independent - but perhaps I should change my reluctancy. I've been informed that I should change the spark plugs ever...

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