I am speaking of my father's 1987 300E. When stopping softly, ABS comes on. This is RIGHT before the car stops moving. It happens probably around 75% of the time. It does happen sometimes under hard braking, but not hard enough that the wheels would lock. The light will sometimes come on after making a stop when it does that, but most of the time the "antilock" lock doesn't come on.
Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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How old is the OVP relay? If ancient, it may be doing something funny.

Otherwise, you have a wheel sensor bad or a brake locking up form dirty calipers or something.

Tires different sizes can do this too, so can a low tire.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

This is almost always a bad front wheel speed sensor (although it could be the rear).

Bring it to your mechanic asap. You have a real safety issue. In a panic stop, the stopping distance will be extended further than needed due to unnecessary ABS activation.

It's about $150 for parts and labor for a front wheel speed sensor.

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-Carl
Principal, BergWerks