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Mercedes-Benz SLK230 Problems

Find the most common issues based on Mercedes-Benz SLK230 owner complaints.
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Most Common Mercedes-Benz SLK230 Problems

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.
The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.
Position switches for the vario roof can fail, causing the roof to stop in the process of opening or closing.
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2 Known Mercedes-Benz SLK230 Brakes Problems

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 anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.

3 Known Mercedes-Benz SLK230 Drive Train Problems

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 happe...
A vibration felt through the center floor of the vehicle can be caused by cracked and/or shredded driveshaft flex discs, resulting in excessive driveshaft movement. If not repaired, damage to the...
Leaks may develop from the differential cover and/or seals on high mileage or older vehicles. Our technicians recommend a complete reseal of the differential unit if these leaks are addressed.

3 Known Mercedes-Benz SLK230 Electrical & Lights Problems

Position switches for the vario roof can fail, causing the roof to stop in the process of opening or closing.
The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.
CD changers in the trunk can fail.

5 Known Mercedes-Benz SLK230 Engine Problems

Engine oil can leak into the engine wiring harness from the cam adjuster solenoid. The oil can migrate through the wires and possibly damage the engine control unit. A leaking adjuster solenoid sho...
Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can...
A coolant leak may develop form the Radiator due to degradation of its plastic components. Replacement of the failed radiator will be necessary.

4 Known Mercedes-Benz SLK230 Exhaust & Emissions Problems

The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.
Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running); the Check Engine Light may also illuminate. Diagnoses of the ignition system will be necessary to dete...
The emissions air injection pump can seize, causing a loud squealing noise followed by smoke from the drive belt. If the engine is not turned off, the belt will break, turning on the alternator/bat...

1 Known Mercedes-Benz SLK230 Heating & Air Conditioning Problem

The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the a...

0 Known Mercedes-Benz SLK230 Maintenance Problems

3 Known Mercedes-Benz SLK230 Miscellaneous Problems

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.
Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.
It is not uncommon for the sun visor hinges to break.

3 Known Mercedes-Benz SLK230 Suspension & Steering Problems

Irregular and premature tire wear can be caused by the lower control arm bushings cracking, resulting excessive movement at the control arm pivot point. Ball joints can also wear out prematurely, c...
A fluid leak from the front of the vehicle may be a result of a worn steering dampening shock. Our technicians tell us that if a leak is noted from the dampening shock it should be replaced.
One or more of the following steering linkage components may wear prematurely; tie rod ends, drag link, or idler arm. Our technicians remind us the wheel alignment should be checked and adjusted...

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Known Mercedes-Benz SLK230 Problems & Complaints

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...
Leaks may develop from the differential cover and/or seals on high mileage or older vehicles. Our technicians recommend a complete reseal of the differential unit if these leaks are addressed.
A vibration felt through the center floor of the vehicle can be caused by cracked and/or shredded driveshaft flex discs, resulting in excessive driveshaft movement. If not repaired, damage to the...
The anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.
The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.
A tube for the EGR system tends to clog with carbon buildup.
Engine oil can leak into the engine wiring harness from the cam adjuster solenoid. The oil can migrate through the wires and possibly damage the engine control unit. A leaking adjuster solenoid sho...
It is not uncommon for the sun visor hinges to break.
CD changers in the trunk can fail.
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