How can I disable the ASR on my 92 400E? California smog test requires running the car on a dynamometer. When I brought it in yesterday, the tech could not get it to work because the ASR kept triggering which aborted the test. Owners manual was of no help.

Thanks,

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Eric

Unhook a front wheel speed sensor - it'll take ABS & ASR off-line.

Do a search; I posted a picture some time ago

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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo

I don't think its the duty of a Smog inspector to disconnect the wheel sensors. So I looked for another inspection station and found the answer:

In California, cars with slip or traction control and without a disengagement switch are tested the old way -- meaning no dynamometer. The tech said this is common on Mercedes. The only surprise is that the inspector yesterday did not already know this.

Test done. Car legal.

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Eric