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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
23rd August 2015, 08:20 PM
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Another Rear Caliper Seized /Bleeding ESP hydraulic pump
Well after all the work done recently (water pump/'stat, timing belt rollers, engine mount, output seal, exhaust) I went to drive to the airport and a shuddering seemed to indicate that the suspect rear offside caliper (I was having trouble with handbrake adjustment) had decided to clamp on. Turned around, went home, changed cars and made it to the airport. Having now returned I have removed the calipers to investigate. The piston in the offside one was hard to move in any direction using the appropriate tool or even pumping the brake pedal! After looking at the alternatives I decided to send both away for refurbishment with BiggRed.
I had been quoted £86 for a single remanufactured caliper by my local garage but BiggRed will completely refurbish both for £139 (£159 for electroplated or £189 for the premium powder coated). As I will re-fit them myself, I read up the Service Manual from the Tech dump on bleeding the system and there was the section on bleeding for vehicles with ESP. They use a VAG 1551 or 1552 to activate the ESP hydraulic pump. The question is - can I use VCDS do this?
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind. 
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#2
24th August 2015, 12:45 PM
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Anybody?
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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#3
24th August 2015, 02:22 PM
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Page 164 mate, says to select Basic settings, then group 002.
At that point you will most likely need to press the on/off/next button. So go into module 3 ABS, then basic setting, select group 002,press the on/off/next button. Pump should run for ten seconds, only do a max of three times then leave the unit to cool for a while.
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Del 
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#4
24th August 2015, 03:16 PM
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Quote:
(Just been told that it will be around 7 days)
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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#5
24th August 2015, 07:35 PM
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I thought I read somewhere that performing basic setting on your ABS pump can fubar the unit, at least have a look for this online David before you do it
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Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble  Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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#6
24th August 2015, 07:44 PM
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Brake fluid change is one thing I would go to the dealer for, its not too bad £59 fixed price servicing. They have the special machine and can do it very quickly.
I replaced a rear caliper myself on the previous S8, but inevitably let some air into the system, and despite bleeding it, it still felt mushy. I didn't do the ABS pump bleed for fear of fubaring it as Neil points out. So I took it to the dealer and it felt fine afterwards.
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