Abs esp inoperative warning light.
Thread Starter
Junior Member
Joined: Jun 2017
Posts: 33
Likes: 1
R280 L
Abs esp inoperative warning light.
hi all. I was just driving slow at 30km/hr suddenly the warning light pops up.
I didnt stop or anything but kept on driving till i got home.
Because 2 weeks ago i was at a dealer and they plugged in the Star diagnostic tool and there wasnt any errors at all...
What could be your guesses,
My front two tires are about 15% left...i'll be buying a new pair soon.
Thanks.
Edit: the road conditions were not slippery. Its nice and dry...i parked the car for a while and reatarted the engine the warning came back on.
.
Last edited by szulkarn; Jul 19, 2017 at 10:48 PM.
Thread Starter
Junior Member
Joined: Jun 2017
Posts: 33
Likes: 1
R280 L
went to shop, had it diagnosed and this came out.
The guy said the speensensor is broken...but im reading " check wheel bearings"... Im confused...
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,140
Likes: 118
From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
You need to replace the ABS sensor in the wheel and probably the plastic bracket the holdscit from rubbing against the axle. 20 minute job. You can reach in there by cranking the steering wheel all the way and reaching in behind the wheel front the front.
Super Member
Joined: Jul 2009
Posts: 938
Likes: 53
From: Montreal, Canada
2005 C240 2011 R350
The speed ring cog is attached to the hub/bearing. when it turns the speed sensor can measure how fast. Unless there was some unusual damage to the cog, it should be only the sensor.
