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D2 - Transmission Gearboxes, diffs, drive shafts. |
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#1
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Couple of thoughts on this , just in general ...
Does the auto box have a breather valve , is it clear The gearboxes that re occur and leak again could it be a fluid boil condition that creates gas build up pressure which escapes at the easy point .. ie gearbox out put seal . I also understand that it could be a design flaw . Years ago we had a old v6 Granada that when the owner towed his caravan up some big hill the box would leak from the torque converter seal , this was replaced but it leaked again whenever the caravan was on tow . We fitted an air fed gearbox oil cooler and it never leaked again after that , this was in the days when the only auto trans oil was the dextron |
#2
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The rear seal leaks diff oil rather than gearbox - only holds about 1 litre but makes a hell of a mess when it is leaking even fairly lightly. Don't think there's any breather on it?
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC |
#3
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Yes, as Adrian states, the final drive is total separate from the gearbox. It drips gear oil onto the cat and the burning smell/smoke is a good indicator.
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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. |
#4
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So on the main gearbox where the prop comes out that has another section that holds ep oil ?
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#5
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Is the 4.2 tdi d3 the same
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#6
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Yep, that's basically it. Has a separate drain and fill on that part of the case
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC |
#7
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Yes can see it on a picture now , it has a prop that comes forward to drive front diff , I wonder if they suffer the same as land rovers where auto oil gets past the case seals and fills the diff part part with auto oil , it turns the ep oil pink and often spews out of the breather tube
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