Hi folks ok so the pistons on my rear brake calipers both seem jammed and wont screw back in no matter what so rather than rebuilding them with new parts!
i have bought a couple of used rear calipers and am assured the pistons move freely and are fine!
i dont have an issue swapping calipers over done it on many a car over the years. HOWEVER
Now i am hoping they are the same ones that i have!! the pictures i have look identical!!
My car or the works car is 2006 A4 2.0L TDI B7 all standard
and have bought rear calipers from Audi a4 1.9 tdi s line b7!! now that i have bought them and are on way am starting to doubt myself as if these are wrong then god am gonna be so peeeeeed offff ????????

 

You didn't say the year of the 1.9 (should that be 1.8?)? Might try Autozone to check fitment. If the donor was a 2005 it looks like it will fit.

 

thanks but they just arrived and tried them and thats them all fitted and good