Replace the screws as directed. Some of them are single-use. While you're at it, replace all of the rubber hoses. Have a 1/4" and 3/8" swivel adapter and a couple of extensions. You'll need them to reach some of the brackets and water pump screws. Trust me on this one.
7 posts · Joined 2014. #22 · May 17, 2014. Passenger Restaint System Fault. Gentlemen, all this is very interesting but the real cause may be indicated by the BMW 5-series recall found in the Motor Trend website and pasted in below: Recall ID # 76537 - AIR BAGS:FRONTAL Plus Hide Details. Recall Date:
So, if the junction box is defective because of wear and tear, it can cause the battery to discharge while stopped. In this case, the only way to fix this problem will be to replace the old junction box. The replacement cost of a BMW junction box will be between $575 and $737.
Something like the $60 CTEK MUS 4.3 is what you want. BMW sells a rebranded version of this for twice as much. I've owned my M235 for 2 years and got my first battery discharged warning a couple weeks back after an extreme cold spell in Kansas City. I got the CTEK MUS 4.3 and hooked it up for one night. VEewTN.