Hi,
I have a stuck inverted/external torx bolt on the brake caliper carrier. Its a real bugger, I have tried a breaker bar and a pipe. Both start to strip the bolt.
The correct socket to use is an E14 right?

 

https://www.realoem.com/bmw/enUS/sho...diagId=34_2178

Look like number 6 on the link above

https://www.ecstuning.com/b-genuine-...206867544~oem/


Hit it with some PB blaster or Free-all. Let soak and use a slightly small e-torx and hammer it on. If that does not work get a socket extractor. Hammer on and then use a bar and take it off.

https://www.ecstuning.com/Search/Sit...ket_extractor/


The extractor will kill the head of the bolt so you will need those new number 6's linked above. 2 per caliper.

 

Thanks for the info.
Does anyone know if its possible to replace these bolts with something more commonly available?
This is the part: 34206867544
https://www.turnermotorsport.com/p-1...uine-bmw-part/

 

M12X1.5X33 Is the size. No direct aftermarket at this time.

It also has a wide tube washer for compression and also light blue Loctite. 242 blue https://bradleygoc.com/products/loct...ts-light-blue/

https://www.ecstuning.com/b-genuine-...206867544~oem/

I would just replace them as its a weird bolt.

 

Yeah that's what I figured would end up being the case.
Thanks again for the info!