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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
14th November 2015, 01:56 PM
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severe vibration on steering
a couple of days ago I was driving home when I started to get a severe vibration on the steering .....I presumed that I had lost a weight or otherwise got a wheel out of balance
today I used the car again and ....nothing ! no vibration ! scratched head , which achieved nothing except even less hair after a while I had reason to use a firm [ not hard ] application of the brakes and ...some vibration again , not so severe this time when I changed the AR bar drop links recently I had a good look at the brakes , about a quarter worn ; front discs were changed about 20k ago , some wear but not severe ...a bit of brake judder still scratching head ! must be a logical explanation , but what is it ? 
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#2
14th November 2015, 03:18 PM
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brake caliper binding? Had similar thing recently.
__________________
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
14th November 2015, 03:20 PM
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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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#5
14th November 2015, 10:56 PM
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Quote:
 I replaced front and back discs and pads and now that the binding issue is fixed its like a different car 
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 Audi S8 2002, Black (even the chrome bits) Audi RS6 Avant 2008, Daytona Grey Maserati Granturismo 2008, Metallic Nero Carbonio Audi S8 2015, Daytona Grey
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#6
15th November 2015, 06:37 AM
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If it's a caliper binding, then the disc an caliper will be much hotter than the others after a run. I had the same issue recently too - must be the season for it.
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2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim. Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not - nope, definitely not - horrible botch!).
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#7
15th November 2015, 08:03 AM
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seems I am in fashion for the first time in 40 years !
from the comments here it could have happened due to standing in the barn for 3 years with no use ! anyway , just going in the garage for the winter so sounds like a job for the spring when I am back in france ; was hoping to come to england in it but haven't sold the motorhome [ wrong time of year ] and have no garaging for that so will use it to come to england so that I can look after it ! tks all ps just noticed that it seems to be a scottish problem ! Last edited by oldnick; 15th November 2015 at 08:08 AM.
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#8
15th November 2015, 08:47 AM
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As stated by The Laird, the first obvious symptom is an overhot disc. Just gently touch it with the back of your knuckles. It was obvious with my front caliper but the rears were not quite as easy. It wasnt so much the pistons sticking as pads sticking/jamming in the caliper. This is a frequent issue as some after market pads are just a mm or so oversize and with a bit of winter crud build-up, they jam in the holder and dont release off the disc.
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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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#9
15th November 2015, 09:22 AM
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I'd recommend adding one of these to your toolbox: http://www.amazon.co.uk/BENETECH-Non...J3U/ref=sr_1_1 I used one to check my disc temperatures when I had some brake judder issues a while ago. They're a fun gadget too. You'll find yourself checking the temperature of everything and anything.
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Mark ------------------------------------------------------ 2002 FE S8 Ebony Black Pearl ------------------------------------------------------  ------------------------------------------------------ Cars Owned: The Tesla Era: 2020 Model S Performance Ludicrous+ (present) (Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability) The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present) The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust
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#10
15th November 2015, 10:55 AM
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Linear Mode
