Brake EBD, ABS, and ESC Inoperative - wheel speed sensor anomoly?
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Joined: Feb 2025
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From: Phoenix
GLK350
...well... Hoping you had a success story to share :-)
Just found this post and have the EXACT same symptoms - getting a "Brake EBD, ABS, and ESC Inoperative" message.
@habbyguy did you find a solution? Did you end up swapping out your ABS / ESP module? Any advice you could give would be appreciated 👍🏻
@habbyguy did you find a solution? Did you end up swapping out your ABS / ESP module? Any advice you could give would be appreciated 👍🏻
Another update on the never-ending saga. The error has been pretty much 100% consistent for the last few weeks, and I resorted to pulling out the BIG guns... I bought a Launch X431 Pro S bi-directional scan tool to enable both digging down deeply into the system to see if I can discern any more details, and (more importantly) it will allow reprogramming a replacement ABS / ESP module (happily, this can be done without requiring me to drain or bleed the brake system - the electronics of the module can be removed from the ABS pump block without opening anything containing brake fluid.
I put a few thousand miles on the car in this last period, always resetting the error by putting the car in neutral, then turning the key to the #1 position a couple times, then re-starting it, all while coasting at over 10mph. That allowed me to continue to use the cruise control, most importantly (though it also reset all the delightful orange lights on the dash).
So now I'm finally back and ready to dig into the problem, and .... yep, the problem just went away. I've put another 5-600 miles on the car without a recurrence.
My guess is that there is something intermittent on the ABS module. I've read accounts of cold / fractured solder joints and PC board runners and suspect that's likely the issue. Of course, pulling the module and scraping all the conformal coating off the PC board and resoldering anything that doesn't look right sounds like something I should try when I won't be needing the car for a few days. Or perhaps I'll just keep my eyes open for a reasonably-priced numbers-matching ABS / ESP module and swap it in...
Stay tuned to this channel... ;-)
I put a few thousand miles on the car in this last period, always resetting the error by putting the car in neutral, then turning the key to the #1 position a couple times, then re-starting it, all while coasting at over 10mph. That allowed me to continue to use the cruise control, most importantly (though it also reset all the delightful orange lights on the dash).
So now I'm finally back and ready to dig into the problem, and .... yep, the problem just went away. I've put another 5-600 miles on the car without a recurrence.
My guess is that there is something intermittent on the ABS module. I've read accounts of cold / fractured solder joints and PC board runners and suspect that's likely the issue. Of course, pulling the module and scraping all the conformal coating off the PC board and resoldering anything that doesn't look right sounds like something I should try when I won't be needing the car for a few days. Or perhaps I'll just keep my eyes open for a reasonably-priced numbers-matching ABS / ESP module and swap it in...
Stay tuned to this channel... ;-)
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From: South Texas
2014 GLK350 base model (active) ; 2001 E320 base (retired); 2001 Wrangler soft-top
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2011 GLK 350 4Matic
The problem once again vanished without a trace, and I haven't seen the issue at all since the last flare-up (just over six months ago at this point). If it does come back, my plan is to buy the new (used) ABS controller module and then probably tear my old one apart to see if I can fix it, after I download its programming first, in case I have to install the new/used replacement. It seems that my experience isn't that unusual with this issue - the problem can be 100%, and then just vanish in the smoke for months, years or forever...
Newbie
Joined: Feb 2025
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From: Phoenix
GLK350
The problem once again vanished without a trace, and I haven't seen the issue at all since the last flare-up (just over six months ago at this point). If it does come back, my plan is to buy the new (used) ABS controller module and then probably tear my old one apart to see if I can fix it, after I download its programming first, in case I have to install the new/used replacement. It seems that my experience isn't that unusual with this issue - the problem can be 100%, and then just vanish in the smoke for months, years or forever...
Mine had been "occasional" for me as well, but now seems persistent - cursed!
You suggested the ABS electronics module could be swapped without getting into the brake fluid - is that right?
I can do the mechanical part, even if it requires bleeding the brakes.... but you believe a reprogram is also necessary?
--Michael
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2011 GLK 350 4Matic
Yes, the "electronics part" of the ABS pump is separate from the "wet part", so no need to bleed anything. There is some programming required - it takes a pretty capable scanner, but isn't limited to "dealer only", which is good. FWIW, it sounds like the majority of the failures in the ABS modules has to do with bad solder joints. I suspect some day I'll become more deeply involved in that whole loop... ;-)
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2011 GLK 350 4Matic
Good luck with that - with any luck, you'll find an obvious issue. The problem with these intermittent "come and go problems" is that you can never REALLY be sure you've fixed it permanently. It could just be hiding in the background to bite you again when you least expect it. At least I have my "hack reset" if I do end up having to do a long trip with the error present. That got me through a whole lotta miles without losing my cruise control (or having to look at all those lights). ;-)
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Joined: Feb 2025
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From: Phoenix
GLK350
Good luck with that - with any luck, you'll find an obvious issue. The problem with these intermittent "come and go problems" is that you can never REALLY be sure you've fixed it permanently. It could just be hiding in the background to bite you again when you least expect it. At least I have my "hack reset" if I do end up having to do a long trip with the error present. That got me through a whole lotta miles without losing my cruise control (or having to look at all those lights). ;-)
And I have driven 150 miles since 👍🏻
What exactly does turning the steering wheel like that do?
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That's the procedure for resetting the steering angle sensor. I forget what the whole song and dance is. I'd have to look it up.
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2011 GLK 350 4Matic
Can't imagine there's a direct link there - it could be as an effective a "fix" as sacrificing a goat (aka "coincidence")... ;-) But this problem seems to be about the most intermittent common issue with the GLK...
