The problem with those is they don't really "bite" by themselves. They need a lot of force to get them down, once they are pressed on they work great. The problem is getting them pressed on in a small space. It took two huge wrenches, a c clamp, and a long 24mm wrench.
First off all, I don't think anyone should do calipers/rotor swaps w/o having a set of bolt outs, maybe it was just my car but when i went to get those carrier bolts off, I stripped a total of 4 around the car. Some tops, some bottoms, I used 3 torx bits as two of the bits even got rounded off, yes they were the 8mm or trx50 bits. (the proper size).
blury picture but this is one that lost all its side points.
Well if any of you do try and get your calipers off and get stuck here's a tutorial to do your rears.
Jack up the car and take off the tire. Don't use the dinky tire jack that Audi gives you as its a piece of Cra* and when you start wrenching on the car even a little bit it will move just enough to make the jack fail and the car will fall, ask me how i know this.
Next step is to identify which bolt out you will need, for these 8mm carrier bolts I needed an #8. (picture taken from under the car looking outside at the bolts)
Next take off the caliper as you will need this hole to geta C-clamp in there.
The wrenches you need for this part is an open 15mm and a closed 13mm. 15 to hold the nut still and 13 for the head. You will know what I mean when you get in there.
Place the easy out on the head and press it on with your fingers as hard as possible.
Take at least an 8" c-clamp and press on the bolt-out using the rotor as a back plate, get a piece of wood if you are not replacing the rotor and/or don't want to scar it.
If and only if (IFF) you cant get your clamp in there do this, take two large wrenches, like 24+mm slip one in behind the bolt out and the other in front of the caliper parallel to the other, then use a press to get those wrenches together @ both top and bottom. This will compress the bolt-out onto the head.
When they are compressed down on the bolt sufficiently release some of the pressure from the clamps but not all of it, w/o that light pressure the bolt out will just back/pop off when you go to wrench on it.
Pull/push and swear a lot, and wala, stripped bolts removed!!
I tried to smile but the sun was really brite and i was pissed.
Happy wrenching
P.S. You will not or should not re-use the stripped bolts after this (duh). Furthermore the upper bolt and lower bolt are diffrent, one is like a 1/4 inch shorter then the other. The lower bolt can be identified with these numbers # n 910 588 01 , 6-421, Q3-G.
Dimensions are 10x1.25x6 I lost the packaging for the uppers. Ordering through ECS will take atleast 1-2 weeks as they dont carry these bolts in stock, and they order them as a complete set, 8. I think they were like $6
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Originally Posted by jonan
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