01-31-2016, 08:59 AM | #1 |
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2 Known Seat Faults and Their Repair
There are it seems two known issues with BMW 6 series F12 and F13 seats. I’d like to share my experiences with identifying and having them repaired. My car is a 2012 M Sport 640d but suspect this will apply to all F12s and F13s.
The first fault manifests itself as a clicking/knocking noise when you corner. It seems to be caused by wear in the door side of the seat rails. My driver seat started doing this at about 37k miles and the passenger side after 41k miles so they were fixed at different times. If you grasp both the floor mounted rail and the seat rail and wiggle around in your seat you can just detect slight movement. The fix is new outside seat rails. According to the no charge invoice I received, the part numbers used on mine were B52.10.7.309.662 for driver side (RHS) and B52.10.7.383.169 for passenger side. I note that according to the parts catalogue, B52.110.7.309.661 (LHS) is now deleted and replaced by B52.10.7.383.169. This suggests that I have an unmodified RHS and modified LHS rail fitted. The cost of each rail is nearly £300 and fitting each costs another £200 so to get both done would have cost £1,000 if the car had not still been within BMW warranty. The second fault is to do with the seat base. It starts to move around when you corner. If you get out of the car and grasp underneath the front of the seat base and lift up you will find some movement. Some small movement is normal but as it wears, then you may start to feel the seat base moving about on cornering. If you get your head down on the floor and look underneath the seat, you see two white plastic clips that hold the seat base onto a bar running from side to side. As far as I could tell, it was wear in the white clips that was causing excessive movement. I was 2 months outside of my BMW warranty and the car was on 47k miles but took it to the BMW dealership anyway for an assessment. The Technician knew immediately what the fault was. They requested a goodwill repair from BMW because this is a known issue which was accepted and they ordered and fitted the parts shortly afterwards. My no charge invoice does not state what parts they replaced but I suspect they fitted a new seat pan part number 52.10.7.375.198 (mine is an M Sport. There are other part numbers for other models) |
02-02-2016, 04:54 PM | #2 |
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Thank you!
I have the 2nd issue and yet, they did the 1st fix you note originally (which seemed to help a bit, but the wiggle is back in the seat bottom). I will print this and bring to dealer when I get the time to take it in.
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