Guy's i'm in need of some assistance. My 550 has a leaky vacuum pump (no surprise there). I have the gasket kit and oil pressure switch all ready to go however, the previous owner stripped the lower star pump bolt. Any suggestions on how to get that sucker out? I've tried 2 different sets of stripped bolt removal sockets with no success. I would drill and tap it but, there's no room and i can't see the damn thing.

 

If there's a good amount of the screw head still on there, then I would try using a small vice grip clamped to head and gently turn it. If that don't work, then as last resort I would chisel off the head, pull vacuum pump off and then use vise on the exposed bolt. Both would be tough to do considering the lack of space down there but do what I always do - think and be positive, it can be done. A good challenge may test your patience but will always build confidence. Good luck

 

Thx for the help.

 

If all else fails you can have someone come out and tack weld a small socket to the face of the bolt. This will allow removal. It may cost $75 but a heck of allot cheaper than ruining your front cover.

 

I finally threw in the towel and took it to a local shop. They removed the stripped bolt for 35 bucks. Wish I knew that to begin with lol.

 

What is the part number of the gasket kit and oil pressure switch please. I need to do this repair myself this weekend

 

The gasket kit you get from BPM. The part number is 305162. The swith I got from the dealer. Part Number 12-61-8-611-273.

 

Its BMP not BPM

BMW 2004 745i Brake Booster Vacuum Pump Seal Kit 11 66 7 545 384 305162


The presure switch you can get at the regular parts store.