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D3 - Transmission Gearboxes, diffs, drive shafts.

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  #21  
Old 12th April 2021, 04:13 AM
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mcs mcs is offline
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I just picked up the car from the gearbox place.

It is a totally different machine to drive. So smooth. Seriously smooth.

The rev hunting on the overrun has vanished. The gears downshifting are not noticeable as the car slows to a stop.

I was told the internal seals were incredibly worn, and this would cause many issues as the clutchpacks cannot get the correct fluid amounts due to internal leaking.

However, it is all done now. Recommend these parts are changed every 100,000 klms.

Mike
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04 A8 - 4.2 Sport

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  #22  
Old 12th April 2021, 05:14 PM
vajper vajper is offline
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Oh, that is SO interesting to hear! I'll try to do mine to in the weekend. Promise to post some pics.
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2005 A8 D3 4.2 TDI Engine: BVN, Gearbox: JEF, Colour: Z9Y Phantom black pearl effect, Interior: Amaretto brown with alcantara headliner
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  #23  
Old 17th April 2021, 02:28 PM
vajper vajper is offline
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The Swedish postal service seems to have lost my spare parts so no work this weekend. Darn
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2005 A8 D3 4.2 TDI Engine: BVN, Gearbox: JEF, Colour: Z9Y Phantom black pearl effect, Interior: Amaretto brown with alcantara headliner
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  #24  
Old 24th April 2021, 10:34 PM
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I've done about 750 klms in the car since the box was serviced now.

The service place was unable to reset the parameters for the gearbox learning, which I have heard of before in very early D3's. It should adapt itself in time in any case, which it seemingly has done.

The box is much smoother to run down the gears to first, and also engages the TC Clutch without any rev bounce on the overrun. Everything seems to be good.

Mike
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04 A8 - 4.2 Sport

Indigo Leather Sports Seats - Sports wheel - Sports Air Suspension
Auto Boot - Double Glazing - AMI - Solar roof
TV - Bose - Voice Control - TPMS - AFS- TINT
Power Blind, Fingerprint - Light package (in and out)

Retrofits:
OEM Auto headlights & rain sensing wipers
OEM Bluetooth phone
Bluetooth Audio Streaming
Reverse Camera
OEM Aluminium Package
Auto boot close using remote/door button
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  #25  
Old 5th May 2021, 09:16 AM
vajper vajper is offline
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Changed my bridge seal and the four rubber thingies this weekend. Reset the adaptation and ran through the initial recommended cycles from the SSP. After that, not that much driving.

So far it is behaving better but still I experience more TC slippage on 3rd gear than expected

It still seems like the shifts 2->3 and 3->4 is happening in "two steps". I get first one motor RPM and then another. Like there is a "middle gear". I don't think I have seen the TC ever closing on 3rd gear, even when really pushing the throttle to max. Guess this might be one of the clutches being worn out...

I've done what I can, will follow up the behavior closely the next coming months.
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2005 A8 D3 4.2 TDI Engine: BVN, Gearbox: JEF, Colour: Z9Y Phantom black pearl effect, Interior: Amaretto brown with alcantara headliner
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