Changing rear brake pads and discs - need help

[Johnmed]

I feel your pain. Been there done that. I think I was able to slacken off the calliper carrier and move it with one bolt removed. That way I got the disc off. My process was scuppered when the EPB module ate itself. By that point I replaced all the parts and handed the f**&er over to a garage to sort. They replaced the module and cleared some codes. I could have done that, but by that point I was a broken man.

The steel calliper carrier bolts on the O/S/F (alloy) hub were contact corroded to death. I had to use a blowtorch and WD40 on the bolt, with an impact gun to get the thing to turn. The N/S/F came apart easily as could be. I still shudder at the memory of that afternoon, that became a weekend of pain.

I love Audis but they really aren’t that nice to work on. I still remember trying to replace the battery on my A2. Thought it would take minutes. Over an hour later I was still cursing the thing as I stared at the old battery in situ!!!

I’ve worked on all my cars and family members’ over the years, without so much hassle as I’ve had with the A2 and A8.

Whereabouts are you OP?

[dangerdred]

Originally Posted by Johnmed

I feel your pain. Been there done that. I think I was able to slacken off the calliper carrier and move it with one bolt removed. That way I got the disc off. My process was scuppered when the EPB module ate itself. By that point I replaced all the parts and handed the f**&er over to a garage to sort. They replaced the module and cleared some codes. I could have done that, but by that point I was a broken man.

The steel calliper carrier bolts on the O/S/F (alloy) hub were contact corroded to death. I had to use a blowtorch and WD40 on the bolt, with an impact gun to get the thing to turn. The N/S/F came apart easily as could be. I still shudder at the memory of that afternoon, that became a weekend of pain.

I love Audis but they really aren’t that nice to work on. I still remember trying to replace the battery on my A2. Thought it would take minutes. Over an hour later I was still cursing the thing as I stared at the old battery in situ!!!

I’ve worked on all my cars and family members’ over the years, without so much hassle as I’ve had with the A2 and A8.

Whereabouts are you OP?

I'm in Dublin, Ireland. I managed to get the discs off in the end like you said - with one bolt removed and the other loose the carrier could be moved enough to get the disc out. I ended up taking all the carrier bolts out and replacing them although I'm still not sure how anybody is supposed to get a torque wrench on the two lower bolts. I've had the calipers back off a few times now at this stage trying to figure out what's causing them to stick as they were working OK before I went at them! I have a seal kit coming so maybe bleeding the system and rebuilding the calipers might solve the problem, although at this stage I'm very tempted to offload the whole thing to a mechanic just to be shot of it.

[H-M3]

Sorry to bring the old thread back up, but how did you sort your issue at the end?

[dangerdred]

If you mean the sticking calipers, it was really only one that was sticking and I fixed mine by replacing it. The piston in the old one was well rusted and wasn't moving freely in the bore - especially when pushed all the way back in with the new pads. I was in a hurry at the time put I'm presuming I could have just replaced the piston and cleaned up the caliper, and I still have the intention of doing this with the old one....sometime

[H-M3]

Thanks mate, same issue with my rear left caliper. After driving 10 mins or so it starts squealing. Bought a new one as I am in a rush. Was gonna go refurb route but don’t have diagnostic to release epb

[dangerdred]

Originally Posted by H-M3

...Was gonna go refurb route but don’t have diagnostic to release epb

OBDeleven dongles are relatively cheap and can do just about everything.

[H-M3]

Any link?