I need to replace my front brake pads on my 1993 Audi 100 CS Quattro sedan V6 model. I replaced the rear brake pads last year with no problem. But I cannot figure out the front ones. There are two bolts that seem to hold the caliper bracket. But the caliper itself seems to be have 2 giant hex bolts. I've never seen this type of set-up. The pads even have some connectors (I assume this is for wear indications).

What do I remove to loosen up the caliper to replace the pads? I tried to loosen up any bolt but nothing will rotate. So before I try something different, I wanted to find out if someone has any suggestion or point me to some instructions on which bolts and how to do this.

Thanks,
MSA10

 

Its standard floating caliper.
Just hold the inner Hex (15mm) and unscrew the (13mm) outside.
I think unscrew the top one for ease of swaping.

 

thanks for the reply! i see a plastic cap on the hex holding the caliper. when i remove the cap, i can see the hex nut inside. but there is a plastic boot covering it on the outside. so i need to remove the plastic boot so that i can turn the outside while holding the inside w/ a hex. i think that's what you are saying.