Thursday, December 23, 2010

DIY W202 Throttle Actuator Cleaning

In an effort to improve my idle performance, I decided to clean the Throttle Actuator in case it had gotten dirty.

I read my Haynes manual to remove it completely and used CRC Throttle Body and Air Intake Cleaner ($8) also available at any auto parts shop like Autozone.

When I put it back together and drove my car for the next few days I noticed really bad performance after a cold start. I suspected the washers had to be replaced. So I went to my local dealer and got these parts: 000 140 27 87 (Damper) for $11.38 and 111 141 10 80 (Gasket) for $4.47, corresponding to the parts labelled 71 and 48 respectively in the following picture.


Sure enough, the problem was solved.

Date: 12/15/2010
Mileage: 119K
Total Cost: $25
Total Time: 1 hour

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