BMW X5 Brake Warning Lights Signal Safety Risk

I had very similar issues with my 2016 BMW X3 last year. The multiple warning lights and spongy brake pedal turned out to be a serious voltage issue in the ABS control module. Had to get it diagnosed with a proper BMW scanner since a basic OBD reader couldn't catch it. My trusted mechanic found that the module was drawing too much power and causing system-wide errors. They ended up replacing the ABS module and bleeding the entire brake system. It's not something you want to ignore, proper braking is crucial for safety. It took about two days to fix since they had to order the parts and do several tests to ensure everything was communicating properly. The work came with a 2-year warranty on the new module. Just make sure whoever works on it has experience with BMW electronics and proper diagnostic equipment. The wrong diagnosis could lead to replacing parts you don't need.

Thanks for sharing your experience! I'm dealing with this exact same thing right now with my X5. Really helpful to know about the ABS module being the culprit in your case. Would you mind telling me what the final cost was for your repair? Also curious if you've had any other brake-related issues pop up since getting it fixed? Trying to figure out if I should budget for any potential follow-up repairs.

Hey again! Happy to give you an update on my X3 situation. So after getting it fixed, I'm glad to report I haven't had a single brake issue since, it's running smooth as butter now! The worn-out brakes were totally sorted out during the repair, and everything's been perfect. The total damage to my wallet was 240 € for fixing the undervoltage problem. Honestly, it was worth every penny for the peace of mind. You know how these BMWs can be with their electronics, once you get them sorted properly, they're fantastic. I haven't had to spend another cent on brake-related stuff since then. The ABS system is working perfectly, no more warning lights, and the brake pedal feels nice and firm like it should. My mechanic really knew their stuff with BMW systems, which made all the difference. Just make sure whoever works on yours is properly equipped to handle BMW diagnostics. These cars can be tricky with their electrical systems, but once fixed right, they're solid.

Just wanted to update everyone about my BMW situation! Finally got it sorted at a new mechanic. The multiple warning lights were definitely nerve-wracking, but the repair went smoother than expected. Turns out my issue was different from yours, had a faulty brake sensor and a small leak in the brake line. The mechanic caught it during their diagnostic scan. They fixed both problems, replaced the brake fluid, and did a complete system bleed. The whole thing took about a day and a half. Total cost came to around 800 for parts and labor, which wasn't as bad as I feared. The brake pedal feels solid now, and all those annoying warning lights are gone. What a relief! The mechanic also gave me a one-year warranty on the work, which is great. Really appreciate everyone's input here, helped me know what questions to ask and what to look out for. The car's driving like new again, and I feel much safer on the road. Definitely keeping this mechanic's number for future issues!