have abs and asr light going off? - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 04-28-2006, 03:08 PM Thread Starter
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have abs and asr light going off?

does this have anything to do with 17inch chrome wheels ? the dealer said factory wheels wont make the light come on? I dont trust dealers but i hope hes right? please respond
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post #2 of 5 (permalink) Old 04-28-2006, 07:09 PM
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Each wheel has a sensor to detect speed of rotation, not sure what it looks at, but one of the experts on here probably will know. Wouldn't expect it to be the wheel, coulda been buggered up when they put the new wheels on . . .
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post #3 of 5 (permalink) Old 04-29-2006, 02:25 AM
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Most likely a wheel speed sensor or control unit.
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'03 C240 Sedan, Black/Java
'03 ML350, Black/Black
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post #4 of 5 (permalink) Old 04-29-2006, 04:32 AM
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If this problem has arisen sinse putting on the wheels it is obviously connected but not being an ex-spert I wouldn't know the answer, the singnal for these safety features is picked up from the gear like attachment on the drive shaft and a sensor positioned just above the gear wheel, on the fonts and, from the stub axle at the back of front wheel drive cars (A class) it will be basically the same on all cars with ABS/ESP how this signal has been affected I dont know. there is more information on my site
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post #5 of 5 (permalink) Old 04-29-2006, 04:54 AM
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Hi,

It is common for dirty wheel/speed sensors to cause the condition you describe.

MBL
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