BMW 7 Series Belt Handover System Failure Fix Needed

Hey there! I had the exact same issue with my 2016 BMW 5 Series last year. The belt handover system failed completely, no movement at all when opening the door. Turned out it wasn't just the tensioner, but the entire belt bringer motor unit had failed. Got it fixed at a certified shop. The repair required replacing the complete handover mechanism assembly. It was definitely not a minor fix, took them about 4-5 hours to complete the job. They had to remove parts of the interior trim to access the system properly. While it's not a safety-critical issue since you can still manually grab your seatbelt, it's pretty annoying to live without this convenience feature. Plus, that warning light on the dash is a constant reminder. Make sure whoever works on it has experience with BMW comfort systems, these mechanisms are pretty specific to the brand and need proper diagnostic tools. Hope this helps!

Hey, thanks for sharing your experience! It's really helpful to hear from someone who went through the same thing. I'm curious though, would you mind sharing how much you ended up paying for the repair? Also, has everything been working smoothly since then, or have you had any other issues pop up with the handover system? I'm trying to figure out if I should expect any follow-up problems after getting it fixed.

Hey again! Just wanted to follow up, I got the belt handover system fixed and it cost me 455 € to replace the defective belt bringer. Actually turned out to be just a bad belt tensioner like I originally suspected. Since getting it sorted at the mechanic, it's been working perfectly, smooth as silk every time I open the door. No problems or issues at all in the months since. I know in my first reply I mentioned thinking it was the whole motor unit, but the mechanic found it was simpler than that. Pretty relieved it wasn't as complex (or expensive) as I initially feared! These BMW comfort features can be tricky, but when they work right, they're pretty sweet. So definitely get it checked out, shouldn't have to worry about any follow-up problems if they do a proper job. Mine's been rock solid since the repair. Let me know if you need any other details about the fix!

Thanks a lot for the update! Really glad to hear it wasn't as bad as initially thought. After your message, I finally took my car to get it fixed yesterday. You won't believe it, but it was also just the belt tensioner! Cost me a bit more than yours though, around 580 bucks including labor. The mechanic I found was actually great, super transparent about the whole process. Funny thing, while I was there, they spotted a few other minor issues I hadn't noticed. Nothing major, just some routine maintenance stuff I'll need to handle soon. But at least the belt handover is working perfectly now. Such a relief not having that annoying warning light on my dash anymore! Thanks again for all your help. Really made me feel better about getting it sorted. Nice to know these things aren't always as complicated as they seem!