Can anyone tell me the allen key size for the front calipers on an 2001 Audi A6 2.7T? 7mm is too small and 8mm is too big. also i was able to get the carrier bolts off but is there someway to remove the calieper from the carrier? or do i have to remove those allen bolts prior. hope someone can help me. im tackling at it again tomorrow. thanks.

 

There might be glue on the threads that needs heat.

 

which threads are you referring to?

 

On the screws you want to remove.