The shaft is redesigned with an additional groove to allow a seal to be fitted with a longer lip, giving a larger sealing face
Car has done 60k with the old design but I figured it was a worthwhile exercise to do both - given the Laird's experience of a recurrent leak using the old style seal that's probably justified the decision to myself, although the 1.7mm install depth seems awfully specific!
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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
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