2005 Mercedes-Benz C320 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Mercedes-Benz C320

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2005 Mercedes-Benz C320 Problems

Oil Seepage on Back of the Cylinder Heads

Mercedes Benz C230 models manufactured between 2005 and 2009 may have engine oil seeping or leaking from the back of the cylinder heads. This is commonly misdiagnosed as leaking valve covers.

On the back of the cylinder heads there are three, in total, plastic expansion plugs that plug access ports to the camshafts. These plugs are well known for seeping oil, and leaking if left unattended. The oil will run down the back of the engine and eventually make it to the ground. 

Replacement of these three plastic plugs is extremely simple, and should be done as regular maintenance. The recommended interval for replacement is every 60,000 miles.

Stalling and/or "Crank no Start" Due to Failed Crankshaft Position Sensor

The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

Clicking Noise From Behind Center of Dash

A repetitive clicking noise from behind the center area of the dash panel is usually caused by a broken stepper motor actuating arm. The actuating arm controls the direction of air flow in the climate control system. Disassembly of the center console will be required to access and change the broken arm with the updated, reinforced part.

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2005 Mercedes-Benz C320 Questions

How to replace the suction fan (1 answer)

Instructions on how to replace the suction fan on a 2005 c320 4matic, and are there any known problems with this?

Valves (1 answer)

Valves are tapping badly

Interior directional lights (1 answer)

Directional lights on the outside of the car work properly. But the directional lights in the inside of car are always on--steady light--even when car is turned off. Lights have been constantly on for last 4 months. Also change in directional lights on the outside are not noted on the inside--...

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2005 Mercedes-Benz C320 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.

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.

Air Bags in Sport Model Steering Wheels May Fail to Deploy Correctly

Certain passenger vehicles equipped with sport model steering wheels fail to comply with the requirements of the Federal Motor Vehicle Safety Standard # 208 "Occupant Crash Protection"In certain tests conducted by NHTSA, using an unbelted female crash test dummy, conditions were found that occupants may not be properly protected during a crash, resulting in injuries. Dealers will install a new airbag module free of charge. The Mercedes recall # is 2006020005

 

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2005 Mercedes-Benz C320 Reviews

Rated
based on 1 customer reviews
At 48000 miles an oil leak showed up on the right side of the engine. At 58000 miles this message showed up "engine oil sensor malfunction, go to workshop". $611 to fix and was not given any reason why it broke. Inside passenger side grab handle just broke, very cheap workmanship. Be careful when you park because front spoiler will be damaged by a parking lot's wheel stopper. Very low front.

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