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D2 - Transmission Gearboxes, diffs, drive shafts.

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  #21  
Old 25th December 2019, 09:33 PM
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27litres 27litres is offline
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A little late to this conversation Jim, but i had an issue a few years back now with my A4.
Had a difficult time diagnosing it.
The car would suddenly start feeling like someone had nailed a lump of wood to one of the rear tyres. Just as it get to the point of pulling over it would go away.
Finally associated it with road bumps and the suspension getting close to bottoming. That lead my mechanic mate to say "It'll be dry grease in your rear CVs".
The grease near the edges of the CV outside of normal movement will dry out over time, and that because the rear CVs never articulate a huge amount, the dry grease is near the edges. Get a decent movement of the suspension over a bump or rut and a bit of dry grease can get pulled into the CV and be a solid lump that the CV must pulverise into submission!
He was right! Cleaned and regreased all 4 rear CVs and the problem never returned.

May not be your problem, but food for thought...
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Current:
2001 Audi S8 - Brilliant Black with Black interior, C5 RS6 rims (whenever I actually put them on...), Solar Sunroof, Tinted side and rear glass, RNS-D, Grom, Bose, clunky old phone in arm rest!
2002 Audi S8 - Project
Replacement head coming arrived thanks to MJ
Silver with Black interior. All features as the '01, with the 'S' mode auto shifter. Dodgey rear tint (need to find a way to get rid of that).
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2009 Volvo XC90 V8 R Design
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  #22  
Old 8th March 2022, 07:24 PM
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The_Laird The_Laird is offline
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The issue seemed to ga away for a while (but maybe it was that I hardly drove it in lockdown), but it’s back again! Nowhere near as violent as some of the descriptions here or in MJ’s TC thread. But it does happen at around 1800 rpm and, because it’s not too bad and only lasts a couple of seconds, no-one else seems to notice it.

But, at over 190K miles, I know that the gearbox is on borrowed time, even though it’s been to Mackies at least a half a dozen times.
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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).
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