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Problems for specific Mercedes-Benz C240 years:

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Most reported 2004 Mercedes-Benz C240 problems

 

Verified for the Mercedes-Benz C240

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.

57 Reports
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Verified for the Mercedes-Benz C240

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

33 Reports
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Verified for the Mercedes-Benz C240

Inside grab handles, the upholstery on the center console cover, and door trim panels can delaminate. Most commonly replacement of the affected part is necessary.

32 Reports
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Verified for the Mercedes-Benz C240

The sway bar end link joints may wear and cause a knocking noise over bumps. Loose or warn links should be replaced to correct this type of noise.

23 Reports
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Verified for the Mercedes-Benz C240

A dead battery can be caused by a faulty seat control module that does not properly shut down.  Spilling liquids on the front seats can cause these modules to fail.

20 Reports
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Verified for the Mercedes-Benz C240

The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.

12 Reports
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Verified for the Mercedes-Benz C240

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

11 Reports
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Verified for the Mercedes-Benz C240

The electrical connector at the automatic transmission may leak fluid. Over time leaking fluid could migrate through the wiring harness and damage the transmission control module. If that happens a new harness and control module may be necessary to correct the problem.

10 Reports
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Verified for the Mercedes-Benz C240

Catalytic converter failure is common and may cause a Check Engine Light to illuminate.

9 Reports
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Verified for the Mercedes-Benz C240

The SRS (airbag) light can come on if liquids are spilled into the seat belt buckles, or if the liquid pools underneath the seat and gets into the electrical connector for the seat belt pretensioner. Damaged components will require replacement to restore proper airbag operation.

8 Reports
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Verified for the Mercedes-Benz C240

An engine oil leak may develop from the oil level sensor. Replacement of the leaking sensor will commonly correct this concern.

7 Reports
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Verified for the Mercedes-Benz C240

Irregular and premature tire wear can be caused by the front thrust link bushings cracking and causing excessive movement in the suspension. The thrust link bushings are fluid-filled (to help reduce vibration), so if they crack, they will leak oil.

7 Reports
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Verified for the Mercedes-Benz C240

Bad spark plug wires can cause misfires; the Check Engine Light may illuminate.

7 Reports
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Verified for the Mercedes-Benz C240

The heating, ventilation and AC (HVAC) heater box is susceptible to mildew buildup. This can result in a musty odor from the HVAC system, most noticeable when the system is first turned on.

7 Reports
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Verified for the Mercedes-Benz C240

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).

7 Reports
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