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 6th September 2017, 11:44 PM
Schaefft Schaefft is offline
Junior Member
 
Join Date: Feb 2017
Location: London
Posts: 3
Exclamation Atf level too low?

Just as an update: Looks like all things are sorted out now, no returning codes. I will keep an eye on the ATF level and keep you guys updated. Lets hope it'll stay that way.

Last edited by Schaefft; 15th September 2017 at 09:22 AM.
Reply With Quote
  #2  
Old 7th September 2017, 06:56 AM
notorious's Avatar
notorious notorious is offline
Senior Member
 
Join Date: May 2010
Posts: 2,011
Default

Rebuild at Mackies or better at ZF in Germany (this is where I go).

Yes, that will cost a lot of money.
But it won't be more expensive than the money .
Get rid of the car now if you are not prepared for full rebuild.

If you're lucky, you can find donor gearbox, but that's lottery.

Rebuilt will always be cheaper if you do it immediately after you notice first symptoms. When done, change ATF and filter every year if it's daily driver. That's what I do.
__________________
I'd rather drive on left
Reply With Quote
  #3  
Old 7th September 2017, 09:18 AM
Schaefft Schaefft is offline
Junior Member
 
Join Date: Feb 2017
Location: London
Posts: 3
Default

Yeah, that's kinda what I am preparing myself for slowly. I would consider the rebuild if the car didn't have other things that will need doing in the future (the timing belt is up next year I believe). A shame really, as I cannot really see any alternative to the S8 for even close the money.
Reply With Quote
  #4  
Old 7th September 2017, 10:57 AM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,180
Default

Hi Rico
I would give Mackies a ring and discuss those codes and see what they say, they have the most experience and any advice from experts is good free advice.

Good luck with sorting - from someone who has been through the pain!


18223/P1815 - Pressure Control Valve 1 (N215): Short to Plus

Possible Causes
Wiring from/to Pressure Control Valve 1 (N215) Short to Plus
Pressure Control Valve 1 (N215) faulty

Possible Solutions
Check Wiring from/to Pressure Control Valve 1 (N215)
Check Pressure Control Valve 1 (N215)
Check Measuring Blocks

Special Notes
Pressure Control Valve 1 (N215) might be referred to as Solenoid Valve 4 (N91)
Start with checking connectors for corrosion or water damage, in case of 01V transmission pay special attention to 16-pin connector between valve body and wiring harness.
__________________

Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Next - Clean Car, Phantom Aeriel, Clean Car again, Fit Variable Back Box with remote control on/off Loudness, RNS-e, Clean Car again!
Audi A8L D3 4.2 Petrol with LPG - Oyster Grey
and some other A8's A8L's and Mercs

Last edited by Architex_mA8tey; 7th September 2017 at 11:09 AM.
Reply With Quote
  #5  
Old 8th September 2017, 07:56 PM
Schaefft Schaefft is offline
Junior Member
 
Join Date: Feb 2017
Location: London
Posts: 3
Default

I've had a look at the TCM today to see if there is anything wrong with it. Everything looks fine, nice and dry. Definitely still the original unit. I also had a look underneath the car (as much as its possible with it being on the ground) to see if there is an ATF leak that could cause the slipping gear related codes, but everything is so oily that its impossible to tell where its coming from. I cleared the codes and took for a very short drive shifting through all gears as often as possible, still driving perfectly fine and the only code that came back is the MAF (16486/P0102 "Signal too Low"). I haven't checked the wires properly yet but will do that asap. I need notice this zip-tie around the connector though, is this normal?



I guess that confirms that the gearbox codes above are intermittent. Maybe there's still a chance to the ATF level is just too low?

Last edited by Schaefft; 8th September 2017 at 08:24 PM.
Reply With Quote
  #6  
Old 18th September 2017, 09:38 AM
27litres's Avatar
27litres 27litres is offline
Senior Member
 
Join Date: Jan 2014
Location: Belgrave, Australia
Posts: 475
Default

A bung MAF will give gearbox problems, as the ECU and TCU use the engine load/torque data that can be derived from the MAF for shifting purposes.
Buy a new MAF.

A quick and dirty test is to do a WOT run from standing start.
You will get a rough 1-2 shift with a dud MAF.

P.S. zip tie is normal
__________________
Cheers

Marty


____________________
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, XCarLink, 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).
Family:
2009 Volvo XC90 V8 R Design
- has a louder more obnoxious exhaust than the S8, sounds great! Love this thing - Q7 was double the price, and certainly not double the car!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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 01:21 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.