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Old 11-05-2003, 02:27 PM
Join Date: Apr 2003
Location: NB Canada
Posts: 1,173
ABS light comes on intermittently

I searched and found that this could be related to dirt or corrosion at the sensor(s), a problem with the OVP relay (is there one of these on a 1985 380SE?), or an actual fault somewhere in the electrical or hydraulic system. So, I cleaned the sensors and serrated rings on the front wheels. No change. The light comes on when I'm just starting to move, and the pedal feels 'crunchy'. It will often go out again if I stop the car and turn the key off/on, and will also come on when I'm just motoring along at speed.

For what it's worth, I'll clean the rear wheel sensors (are there sensors at the rear too?), and see if that helps. If not, I could remove the bulb and forget it (pedal feel is annoying, but safe, right?), or tape over it (lazy but quick solution).

Finally, next spring (car goes into storage next month for winter), I was thinking of disconnecting the hydraulic control box entirely, so it would be just like my old 450SE non-ABS brakes. Anyone care to comment on:

- Possible other things to check that can be easily repaired or CHEAPLY replaced?
- What might happen if I just ignore this (bulb solutions)
- What to look out for when disconnecting this aggravating system. I don't drive this car in winter, only summer, and rarely even out of town, so the value to me of this is negligible compared to the annoyance of the pedal feel and the @#$%^ light.
1986 560SL
2002 Toyota Camry
1993 Lexus
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Old 11-05-2003, 07:21 PM
86560SEL's Avatar
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Join Date: Jan 2003
Location: east Tennessee (southeast USA)
Posts: 3,005
My 92 Buick Park Avenue did this once. The "anti-lock" light stayed on for a while longer than it should have a few weeks ago. Now the light goes just a few seconds after start-up. I guess it was a temporary malfunction, but I still have no idea what. I posted about it on a Buick site, similar to this site and someone said that the computer will store a code as to what the problem was. This is for GM cars however - I am not sure if Mercedes would store a code or not. Be worth a try to find out before you replace all sorts of parts. Good luck.
1991 Lincoln Town Car Executive (33k miles)
1991 Cadillac Sedan DeVille (77k miles)
1992 Toyota Camry LE (177k miles)
1972 Chevrolet Caprice Kingswood Estate 9-passenger wagon (44k miles)
1973 Pontiac Grand Ville 4-dr hardtop sedan (94k miles)
1988 Mercedes 300SEL (was mine, now mothers)
(Prior MB's: 1974 240D, 1985 380SE, 1984 190D)
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