BMW ABS Warning Light: Lateral Sensor Problem Fix Help

Hi! I had a similar issue with my 2016 BMW 3 Series diesel. I have some experience working on cars, but for this problem, I had to take it to a workshop. The symptoms were exactly like yours, ABS light wouldn't go off. Turned out the control unit was faulty and needed replacement. Cost me about 1000 Euro to fix, but it's been working perfectly since then. My mechanic mentioned these issues can be tricky to diagnose without proper diagnostics. Before giving more specific advice, could you share: Which error code you're getting? Are you experiencing any other warning lights? Does it happen more when driving on certain road conditions? If you'd like, I can share more details about my repair process once I know more about your situation.

Thanks for the detailed response! My car has 31047 KM on it and was last serviced 4 months ago. The error code I'm getting is P0571, and yes, I'm also seeing the DSC light come on occasionally, especially when making tight turns. It's definitely more noticeable on wet roads. I was hoping it would be something simpler like a sensor, but after reading about your experience, I might need to brace myself for a bigger repair bill. Did your mechanic mention anything about preventive measures to avoid this issue in the future?

Hey there again! Thanks for providing those details about your situation. Actually, reading your symptoms and error code makes me think your issue might be different from what I initially experienced, despite the similar warning lights. The P0571 code combined with the DSC light coming on during turns and wet conditions is interesting. My car actually started showing similar behavior a few months before the control unit failed completely. Looking back, I wish I'd addressed it sooner. One thing I learned from my mechanic during my repair, these systems are interconnected, and what seems like an ABS issue could actually be related to the brake light switch or wheel speed sensors. After my repair, my mechanic recommended regular brake fluid changes and keeping the wheel sensors clean from debris. Since you mentioned it acts up more in wet conditions and tight turns, this definitely sounds more sensor-related than my issue was. My control unit failure was consistent in all conditions. Have you noticed any grinding or pulsing in the brake pedal? That's something I experienced with mine before it got worse. Let me know if you get it checked out. Really curious to know what's causing it in your case. These BMWs can be tricky with their electronics, but they're worth fixing right.

Thanks again for sharing your experience! No, I haven't noticed any grinding or pulsing in the brake pedal, which is somewhat reassuring. You've given me some valuable insights, especially about the interconnected systems and the possibility of sensor-related issues. I've just booked an appointment with my mechanic for next week, and I'll definitely have them check the brake light switch and wheel speed sensors first. It's good to know that your control unit issue showed different symptoms, which makes me feel a bit more hopeful that mine might be a simpler fix. I'll make sure to mention all these details to my mechanic. Really appreciate you taking the time to explain your experience in detail, and I'll be more proactive about regular brake fluid changes going forward. Thanks for all the help!