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| D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc. |
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#1
31st October 2010, 08:02 PM
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Conan
The brakes only get hot if I've used the handbrake. They don't bind at all otherwise, so it's a problem with the h/b mechanism. But how to fix it??? 
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#2
31st October 2010, 08:30 PM
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While the piston is the same the method of pushing it against the disk isn't.
The foot brake uses Hydraulic pressure and the handbrake uses mechanical leverage. Both on the same piston. Get a wind back tool and carry out the procedure. When the handbrake is put on it winds out the piston. When the foot brake goes on it pushes out the piston. I think.......... Must take one to bits.
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Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light. 
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#3
3rd November 2010, 09:46 AM
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I have sticky handbrake so I stopped using it. Last years MOT matey wanted to fail the 8 because one side wouldn’t release but because I argued it did actually work and it would release if I pushed it back by hand from behind the wheel and because it has P on the trans he let it go on the pretence I would get done.
Mot time again and ok I’ll come clean I’ve not done it but think I’ll have to have a go this wk-end at getting them free as I think it’s going to be pretty seized now. Anyone have any rear callipers spare I could maybe borrow just for MOT day. Mike you're more than welcome to take one of mine to bits to see how it works...........................then put it back together so it works like a new one Last edited by Dezzy; 3rd November 2010 at 09:50 AM.
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#4
3rd November 2010, 02:16 PM
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I'm free this weekend if you want to come over dezzy. I even have a spare overhaul kit!
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Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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#6
3rd November 2010, 06:54 PM
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pic of inside bits
took both mine apart last summer, one of the hand brake levers wouldn't come out of the caliper housing(small pin holding it i think), but did manage to get it working with wd40. however it siezed again after one month. other caliper lever came out to clean rust off. but tiny seal was not damaged,so no problem on that side of the hand brake.
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#7
4th November 2010, 09:03 AM
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A month hay? Well i've not really needed it so as long as i could get it working for the dreaded day. What was the solution in the end A8 parts?
Nice pic of it in bits too by the way i now have a little understanding in who many bits i should have. Shopping list of bits / tools req. Brake fluid Tool tips for Mikes dremmel Me and the 8 1/4 of pedigree Dexter beef
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#8
13th November 2010, 08:07 AM
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Quote:
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#9
14th November 2010, 12:33 AM
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Dezzy
We got the same prob. I knocked the lever back with a hammer to release the h/b. Did it 20 times with a mate hauling the h/b on in between hammerings! It'd be great to hear how you fix your calipers. It seems to be a weakness on the D2. I've just had her MoT'd so ok for a year! S
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#10
14th November 2010, 01:09 PM
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Temp repair for handbrake
Need to remove the caliper from the car really as a bench and vice come in handy and working under a wheel arch outside in the rain isn't the best.
Caliper on the bench with the return spring removed, a little care needs to be taken as the spring it under a bit of tension. Looking at the dirt bild up between the handbrake lever and the caliper body. I used loads of 3in1 with a bit of white sprits to thin it down and worked the leaver back and forward untill my hands were sore. Then a large screwdriver between the lever and body and with a wiggle, twist and a bit of levering it will come away from the body. Leaving this. I, like John, couldn't get the lever all the way out. (on either caliper) Looking down and the dirt / rust build up is thick. Last edited by Dezzy; 14th November 2010 at 01:39 PM.
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