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You replaced them without being 100% sure if it were actually the fronts. Also, you probably was supposed to have the system reset. I’ll just wait for an expert to chime in. I just knew how to bypass the issue temporarily and what was causing it.
Damnit! After replacing the fronts the ESP light is still triggered under WOT acceleration past 4000. Now what???
Is it the rears triggering it?
Originally Posted by DennisG01
I recently went through issues with a failing WSS on my '97 BMW. It caused different issues than you, but I was able to find specs so I could test each WSS to defnitively see if it was bad, or not. Maybe with some googling you can find the specs? I learned enough that the specs for my WSS is/was not necessarily the same as other model years so I don't think I can pass along any data to you. BUT, don't forget to look through the hole where the WSS fits - spin the disc brake as you look - you should be able to see pretty quickly what the WSS is seeing and whether or not there is gunk in there causing/adding to the problem.
I'm still surprised at not seeing any codes.
I hate to sound like a broken record, but it seems as if suggestions are falling on deaf ears. Did you verify there is no gunk/debris? Did you find the resistance specs for the WSS's to verify good/bad? I am certainly no expert but in my novice mind, it seems like these two things would be good steps?
No debris. Don't laugh but I used a pick and a shop vac I'm the hole. I did find a leaking axle boot on the driver s Sorry, couldn't get a good camera shot of the hole in the spindle after cleaning.
However I don't have the resistance specs for each sensor
Last edited by Uranium238; 02-10-2019 at 07:09 PM.
Did you spin the disc brake and look through the hole at the reluctor wheel to make sure the reluctor wheel's spacing/holes were all clear? Or just the hole that the WSS sits in?
Ohm the new WSS. Do both. Assuming they are good, that is the resitance you'd be looking at for all of them. I did only a limited Google, and I'm not sure how accurate this is, but I was seeing mention of about 13 Ohms. I'm curious to see what your new ones are. Check the old ones - see how they compare. Check the rears. Remove the plug at the wheel well and check there, as a start.
The reset procedure is to turn the wheel all the way to the right, all the way to the left, and back to the right. Should clear in the first few feet of driving.
02-10-2019, 04:37 PM
