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Old 09-28-2007, 07:55 PM
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Join Date: Jul 2006
Posts: 24
ABS light on all time

Hi everybody, today i start the car and the Abs light will not go off. Is a Sl 300 1991. The light still on all the time. Please help. Bobterry pls help.
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Old 09-29-2007, 03:51 PM
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Join Date: Mar 2007
Location: Houston, Texas
Posts: 211
1. Fuses
2. Brake fluid level
3. Tires - are they worn?
4. Sometimes the system gets a last resort after you have checked everything, unhook battery to reset systems (remember to find your radio code card and pre-set stations BEFORE unhooking the battery).

IF light comes back on, then you have a mechanical problem.....
sometimes dirt gets stuck in the sensor and trips a warning light....

Do the brakes feel "mushy" or hard to operate?
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Old 09-30-2007, 02:32 PM
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Join Date: Sep 2007
Posts: 3
This happened in my 1995 sl320. It was a worn brake sensor, which is a very inexpensive little part ($10 - $30 depending on where you buy). Bryan
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Old 10-01-2007, 02:29 PM
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Join Date: May 2001
Location: Las Vegas, Atlanta
Posts: 669
According to the R129 diagnostic manual, if the ABS light is on this indicates a lack of power to the ABS module or a faulty module. The module gets power from the over-voltage protection relay, so be sure to check the fuse mounted in the top of that. Feel free to send me an email if you like.
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