[Biturbos4] Rear caliper pistons on B5

Grant gfl1 at optonline.net
Sun Jan 2 21:18:40 EST 2005

Ahhh, I see you also don't have the shop manual. :-)

Every Audi made since about 1980 has required a giant hex key to 
"screw" the rear calipers back in.
I suggest you buy or borrow one.

I also dont have the bentley for the '00-03 S4, but I could dig up my 
old '84 or '91 manuals if you need me to peruse them for you.  Let me 

Not sure if any damage can come of the brute force method.  Never had 
the heart to do it.  When I faced the same problem back on my 1984 
4000q, I put the old ones back in until I got the right tool.

On Jan 2, 2005, at 9:11 PM, Jonathan Conta wrote:

> Apologies ahead of time if this has been covered - I'm new to the list.
> I spent a day this past week swapping out my stock pads (2000 S4 
> otherwise currently unmodified - yet....) for some Mintex "red box" 
> pads, both front and rear.
> When changing the rear pads I was able to get the stock pads out 
> without a problem, but when I went to compress the caliper pistons to 
> fit the new ones in, I had a hell of a time getting them to retract 
> back into the caliper.  I bought one of those pad compressor tools at 
> Pep Boys and nearly ruined the thing putting so much torque on it 
> pushing the pistons back in.
> Has anyone else run into this?  Or am I staring some 
> sticky/about-to-freeze caliper pistons in the face?  I did eventually 
> get them back in and the new pads on, and I must say my initial 
> experiences with the Mintex pads have been outstanding - much more 
> even braking, less "grabby" than the stock pads, and significantly 
> less brake dust.
> Thanks much,
> Jon
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