2003 Mercedes-Benz C230 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz C230

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2003 Mercedes-Benz C230 Problems

Transmission May Leak Fluid and Damage Control Module

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.

Brake Light Switch Failure May Cause ESP/BAS Warning Lights

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

Check Engine Light On Due to Failed Mass Air Flow Sensor

The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.

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2003 Mercedes-Benz C230 Questions

Where is the Crankshaft Position Sensor located for my car? (1 answer)

The other day. The wife parked the car at work.

She said it did not want to start. I checked it out and brought my OBD reader. It threw out some codes of concern initially for the CAMSHAFT Sensors.

I had it towed to a nearby shop and they said the CAMSHAFT POSITION SENSORS had some oil o...

benz c230 has coolant in the transmission pan cant tell where its coming from (1 answer)

Front seat won't move; stuck in farthest back position (2 answers)

I have to drive with a pillow behind me

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2003 Mercedes-Benz C230 Reviews

I am buying a 2003 c230 at a local dealer for 7000.00, they are having the valves done and the guy said it would run 1800 and split the cost with me or he would just wholesale it. It is in great shape otherwise. The compression runs 160-160-160-100, with cyl # 1 being the issue.....is this common at 100k mi?
The right and left front blinkers have both gone out, been replaced and now the right front blinker is not working!!! Other than that I LOVE THIS CAR. It feels like a little tank compared to the Toyota I used to own. The Dealership will way too expensive so I use a private mechanic. So far, the only problem I've encountered is the blinkers. I did replace the battery at 46,000 miles.
I bought my c230 after driving a sporty Acura RSX type-S for a couple of years. The comfort was the first thing that I noticed. The seats are accommodating and the electronic seat adjustment for both driver and passenger is a great addition. The ride is smooth for such a sporty car, and the transmission shifts with little hesitation. Smooth is what I have to say about the driving experience. If...

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