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eberhardroth6

BMW iX3 ABS Warning Light: Speed Sensor Fix Needed

Loss of traction

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ABS/DSC system is not working

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ABS warning light

Urgent help needed, BMW iX3 (2021) ABS issues Hey all! My iX3 with 149,680 KM is giving me headaches. The ABS warning light stays on, and the car behaves strangely with unpredictable traction control kicks and jerky acceleration. Had a scan done showing ABS system errors, likely related to speed sensors. Not keen on going back to my previous mechanic after a bad experience. Has anyone dealt with similar symptoms? What was the actual issue, and how much did the repair cost? Also, would appreciate recommendations for getting this fixed properly. Thanks in advance!

4 comment(s)


annaneumann1

I experienced something very similar with my BMW i4 (2023). The ABS warning came on suddenly, along with erratic traction control behavior. Initially thought it was just speed sensors too, but turned out the ABS control unit itself was defective. Took it to the garage last month where they diagnosed a faulty ABS module. The control unit was failing intermittently, causing unusual ABS engagement and traction control issues. It wasn't just a sensor problem, the whole unit needed replacement. This was a serious issue that required immediate attention since it affected core safety systems. Can't drive safely with unpredictable ABS and traction control behavior. The repair involved replacing the complete ABS control module and recalibrating the system. My advice: Don't delay getting this checked. ABS issues aren't something to take chances with, especially given the symptoms you're describing. Sounds exactly like what I dealt with.

eberhardroth6 (Author)

Hey, thanks for sharing your experience! Yeah, that's exactly what ended up being wrong with mine too, the ABS module was shot. Such a pain when these electronic units fail. By the way, do you remember roughly how much you had to pay for the repair? Also, just curious, has everything been running smoothly since the fix, or have you noticed any other quirks?

annaneumann1

Hey there! Just to follow up, yeah, the repair set me back about 1000 € for the control unit replacement. But honestly, it was worth every penny because it completely sorted out that annoying Speed signal fault I was dealing with. Since getting it fixed, my i4's been running like a dream, no more unusual ABS lights, no weird traction control kicks, nothing. It's such a relief to have the car back to normal. The braking feels super smooth now, and I can actually enjoy driving without worrying about any unexpected behavior. It was definitely the right call to get it fixed properly rather than trying any shortcuts. These modern BMWs are amazing when everything's working as it should, but when these electronic modules go bad, you really need to bite the bullet and get them sorted properly. Just make sure you keep an eye on it for the first few weeks after the repair, but I bet you'll have the same positive experience I did. The car feels just like new again!

eberhardroth6 (Author)

Thanks for the feedback! Just got back from my mechanic today actually. The repair cost was similar to yours, around 1000 €, but at least it's fixed now. The mechanic was super professional, way better than my last one. They did a thorough job testing everything after the replacement. Took it for a test drive after the repair, and what a difference! No more warning lights, smooth braking, and the traction control is working perfectly. Such a relief to have this sorted. Honestly, even though it was expensive, I'm just glad to have my car back in proper working order. You were absolutely right about getting it done properly rather than looking for cheaper alternatives. These high-tech systems really need proper care. Thanks again for your help, really made me feel better about the whole situation knowing someone else went through the same thing with a good outcome!

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