LucasFischFan
BMW 8-Series Multiple System Failures, Radar Issues?
Fault stored
Warning light in the speedometer of the vehicle
Error message in the speedometer
Failure of various systems in the vehicle
4 comment(s)
Thanks for sharing your experience! My car has 140146 KM on the clock, and I'm seeing "Front Collision Warning Unavailable" along with "Lane Departure System Malfunction" messages. The weather's been pretty rough lately, so that might explain the dirty sensor theory. Did you notice if your warnings would come and go out of nowhere? Mine seem to pop up especially when driving on highways. I'll definitely get it checked at my next service appointment. Really hoping it's just a cleaning job like in your case rather than needing a complete sensor replacement!
Hey again! Yes, I totally remember having those exact same warnings on my 7 series! Mine also used to act up mostly on highways, and the messages would definitely come and go out of nowhere, super frustrating when you're trying to use those driver assistance features. Since you mentioned the rough weather and the fact that these warnings pop up more on highways, it really sounds identical to what I experienced. In my case, when the sensor was dirty, the warnings would appear more frequently at higher speeds, which explains the highway connection. The rain and road grime were basically messing with the sensor's ability to work properly. Just to give you a heads up, when my workshop cleaned the sensor, they also recalibrated it. The cleaning alone might not be enough, so make sure they do both. The whole process took about an hour for me. Also, since your car has quite a few kilometers on it (mine had around 120000 KM when this happened), it might be worth having them check the sensor's mounting bracket too, just to be thorough. Keep me posted on what your workshop finds! I'm really curious to know if it turns out to be the same issue.
Thanks so much for all the detailed info! This really helps, especially knowing about the calibration part, I'll definitely mention that when I take it in. It's super reassuring to hear that you had such similar symptoms and it turned out to be something relatively simple and affordable. I've booked an appointment for next week, and I'll make sure they check the mounting bracket too, given my mileage. You're right about the highway connection making sense with the higher speeds. Since you mentioned it, I've noticed the warnings do seem to get worse after it rains or when there's a lot of road spray. I'll update this thread once I get it sorted, might help others with similar issues. Really appreciate you taking the time to share your experience. Fingers crossed it's just a good cleaning and calibration job like yours was!
Hey there! I've got some experience working on BMWs. Had a similar issue with my 2019 BMW 7 series. Those warning lights and system failures can be super annoying! In my case, the radar sensor was just dirty and needed a thorough cleaning. Took it to my workshop, and they diagnosed it pretty quickly. The whole thing cost me about 45 Euro, and it's been working perfectly since then. If you're getting multiple errors, it's definitely worth checking the radar sensor first before diving into more complex issues. What exact error messages are you seeing on your dash? Also, do you drive frequently in bad weather conditions? This info would help me understand if you're dealing with the same problem I had. If you want, share some details about those fault codes, that would make it easier to point you in the right direction.