A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Transmission

D2 - Transmission Gearboxes, diffs, drive shafts.

Reply
 
Thread Tools Display Modes
  #1  
Old 24th August 2019, 03:02 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default Not looking good

Attached Thumbnails
Click image for larger version

Name:	Screenshot_20190824-150049.png
Views:	771
Size:	513.0 KB
ID:	22097  
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #2  
Old 24th August 2019, 03:03 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default

Attached Thumbnails
Click image for larger version

Name:	Screenshot_20190824-150323.png
Views:	824
Size:	332.4 KB
ID:	22098  
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #3  
Old 24th August 2019, 03:05 PM
HPsauce HPsauce is offline
Senior Member
 
Join Date: Sep 2011
Location: Chilterns, almost over HS2!
Posts: 8,366
Default

Unless it's "just" the F125 switch.....
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
Reply With Quote
  #4  
Old 24th August 2019, 03:23 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Posts: 5,017
Default

Argh That's usually something slipping, and that is usually the front broken off the front clutch drum.

Assuming you don't fancy a full rebuild, replacing the clutch drum is DIY'able if you're able to get the gearbox out. Its available new from ZF dealers, or you could use a donor gearbox, although that's a risk that it also has a cracked drum. Prestige have a dead one in at the moment I think, although I don't recall what the fault was.
Reply With Quote
  #5  
Old 24th August 2019, 04:13 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default

Problem appears to be with 1st gear. Moving off it makes a jolt and switches to 5th. If I manage to manually switch to 2nd before fault occurs it works fine until goes in 1st again.
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #6  
Old 24th August 2019, 05:22 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default

Any idea what the solenoid current should be? Most are 0.144A but one is 0.742A?

Also strange that fault code says Gear 3 but problem seem to be with 1st.
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #7  
Old 24th August 2019, 05:41 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default

Quote:
Originally Posted by MikkiJayne View Post
Argh That's usually something slipping, and that is usually the front broken off the front clutch drum.

Assuming you don't fancy a full rebuild, replacing the clutch drum is DIY'able if you're able to get the gearbox out. Its available new from ZF dealers, or you could use a donor gearbox, although that's a risk that it also has a cracked drum. Prestige have a dead one in at the moment I think, although I don't recall what the fault was.
Unfortunately no time and no facilities to DIY it if the box need to come off, and not worth paying someone else to do it as car when working was worth £1k at most. I did replace clutch and flywheel on A6 on the drive but car was just high enough to disconnect the box not to actually remove it from under car.

Unless it's a solenoid or something else I can DIY from under the car without removing the box I am afraid it will be the end of S8.
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #8  
Old 24th August 2019, 06:19 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default

This is what Elsa say






Attached Thumbnails
Click image for larger version

Name:	Capture.JPG
Views:	753
Size:	63.5 KB
ID:	22099   Click image for larger version

Name:	Capture2.JPG
Views:	755
Size:	109.7 KB
ID:	22100  
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure

Last edited by ainarssems; 24th August 2019 at 06:25 PM.
Reply With Quote
  #9  
Old 24th August 2019, 06:23 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,799
Default

As soon as I move off, jolt and fault code registered for gear 3 when it's only been in 1st, if I manage to get to 2nd all other gears work fine including 3rd until it selects 1st again.
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #10  
Old 26th August 2019, 08:41 PM
Dezzy's Avatar
Dezzy Dezzy is offline
Senior Member
 
Join Date: Sep 2009
Location: N. Devon
Posts: 2,715
Default

Ffs ainars, must be save able on a shoe string.
Just out of interest what happens when the 4 speed is coupled to the S?
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8.

Bright yellow bus o love.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 09:46 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.