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#1
12-19-2010, 08:05 AM
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ABS light comes ON
Hello my friends hope you are all well.
I would like to share with you a problem with my 1994 W202 C180 Esprit with about 230 000 KM. Recently the ABS warning light just appears as soon the car starts moving at certain speed. Whoever every time I start the engine, the ABS light is off but becomes ON as the car moves forward. The speedometer is working, therefore cannot be a really valve problem. Could be a speed sensor in one of the wells? Is the vehicle got a speed sensor on the four wells? Or there is a speed sensor on the differential and the front wells? Please, any help will be highly appreciated Regards DGomes 
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#2
12-19-2010, 11:57 AM
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Sounds like a speed sensor--they watch the "teeth" go by and probably need to generate a signal to indicate system is in good working order. Could be just the wiring broken.
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Kent Christensen Albuquerque '07 GL320CDI, '10 CL550. '01 Porsche Boxster Two BMW motorcycles
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#3
12-19-2010, 01:11 PM
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ABS light comes ON
Hello Kchris
Thank you so much for your quick reply concerning this matter. On your message you have mentioned that “Could be just the wiring broken.” Well, recently I have changed all the springs at my home made by my personal mechanic. But the wiring seam to be ok. Whoever, I will do a close checkup on the wiring. Thanks my friend. Regards
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#4
12-19-2010, 04:18 PM
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Was the problem there before the springs were replaced, or just after??
Gilly
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Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)
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#6
12-20-2010, 04:43 AM
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I'd guess one of the leads for a front speed sensor was damaged or disconnected during spring replacement. The lead is part of the sensor. I would inspect the wiring very closely for the front sensors.
Gilly
__________________
Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)
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#7
12-20-2010, 09:37 AM
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DGomes, does the ABS light come on when ignition key is turned to the acc position before starting the engine, to indicate that the ABS is going through its self check?
__________________
1988 California version 260E (W124) Anthracite Grey/Palomino Owned since new and still going strong and smooth MBCA member Past Mercedes-Benz: 1986 190E Baby Benz 1967 230 Inherited from mom when she downsized 1959 220S Introduced me to the joys of keepin' 'em goin' There are only 10 kinds of people in the world--those who understand binary and those who don't
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#8
12-20-2010, 09:56 AM
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On my SDL (older car) the OVP Relay was failing and that caused the light to come on. You can also unplug the ABS module and clean the contacts on the connectors.
I do agree that the problem in your case is most likely wiring at the wheels. Maybe the sensor wire just came loose after the work was done. Maybe the toothed wheel or the magnet on the sensor needs to be cleaned. Does the ABS still function if you panic stop the car? Good Luck!
__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy" Current Monika '74 450 SL BrownHilda '79 280SL FoxyCleopatra '99 Chevy Suburban Scarlett 2014 Jeep Cherokee Krystal 2004 Volvo S60 Gone '74 Jeep CJ5 '97 Jeep ZJ Laredo Rudolf ‘86 300SDL Bruno '81 300SD Fritzi '84 BMW '92 Subaru '96 Impala SS '71 Buick GS conv '67 GTO conv '63 Corvair conv '57 Nomad 
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#9
12-22-2010, 11:35 PM
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the issue your describing sounds like a speed sensor,also you can remove the rotor and clean all the teeth out with some good ole breaqk clean,if the speed sensor or pick ups are dirty they will trigger the abs light to come on goodluck.marc
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#10
12-30-2010, 03:46 PM
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Hello Friends,
I would like to thank you for all of your support on this issue. Since many of you suggest, we have made very closely inspection on in the front wiring speed sensors and we have found a broken wiring in the front right well. Apparently the wiring was ok. Whoever, the damage was inside of the wiring isolator. We manage to reconnect the wiring and the problem disappeared. Overall I need a right new speed sensor. Thanks again fellows and happy New Year Regards Danilo
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#11
12-30-2010, 03:46 PM
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Hello Friends,
I would like to thank you for all of your support on this issue. Since many of you suggest, we have made very closely inspection on in the front wiring speed sensors and we have found a broken wiring in the front right well. Apparently the wiring was ok. Whoever, the damage was inside of the wiring isolator. We manage to reconnect the wiring and the problem disappeared. Overall I need a right new speed sensor. Thanks again fellows and happy New Year Regards Danilo
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