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D4 - Transmission Gearboxes, diffs, drive shafts.

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  #1  
Old 19th May 2016, 04:14 PM
nath nath is offline
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Default sports differential fault

just had the warning light come on the dash for
"sports differential fault"

vcds has very kindly given me two codes , but after googling i can find very little ie. no information at all regarding the problem

any help trying to sort this would be appreciated
links posted are off the fault codes generated


https://www.flickr.com/photos/235252...posted-public/
https://www.flickr.com/photos/235252...posted-public/
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Old 19th May 2016, 04:16 PM
nath nath is offline
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Old 19th May 2016, 05:40 PM
Joe2.0E Joe2.0E is offline
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This was posted previously in the Brakes, Suspension etc. It may be of some relevance;

#13 Report Post
Old 25th April 2016, 02:03 PM
velour velour is offline
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Hi all,

Thanks again for the replies. Quick update:
The droning noise was a wheel bearing, replaced and noise issue is solved. Cost approx 300 at the local indi for reference.

Did not fix the sports diff light though, coincidental. That turned out to be 2 sensors (temp and oil level) and 2 of the clutch / fluid valves controlling the hydraulics in the sports diff. That was sorted out at the dealer - shade over 800 (ouch).

Master tech confirmed that the main cause of the light coming on is electronics / generally sensor problems. From the research I did this seems to be fairly common across sports diff on A4s.
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Old 19th May 2016, 06:36 PM
nath nath is offline
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thanks joe

im hoping its just a sensor as opposed to anything more sinister

does anyone have access to a parts catalogue and could find me the part number for the oil and temp sensor on the rear differential please

im hoping to order it and swap it out
thanks
nath
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  #5  
Old 20th May 2016, 07:46 AM
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Adrian E Adrian E is offline
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If you post up the year and spec (engine etc) I'll have a look for part numbers for you
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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

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Old 20th May 2016, 07:52 AM
nath nath is offline
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Thank you

It's a 2010 4.2 Tdi. Cdsb I think is engine code and mxx is gearbox I believe

Not sure if it's 2 separate sensors or one combined
It's the oil pressure and temperature sensor/s
On the sports diff

Thanks
Nath
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  #7  
Old 20th May 2016, 09:19 AM
nath nath is offline
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I have very kindly been given

2 parts numbers by Audi Wakefield

They are
0bf598081a. (Brown plug)
0bf598082a. (Black plug)

the original part numbers i have are

8k0 927 221b black plug
8k0 927 222b brown plug

They have also very kindly sent me an e mail with pictures
However I'm on my phone at work at moment and for some reason
Cannot view the pictures

If anyone could please put the pictures of these parts up it would be most appreciated

Thanks
Nath

Last edited by nath; 4th June 2016 at 02:16 PM.
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Old 20th May 2016, 10:02 AM
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Adrian E Adrian E is offline
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Hiya

Well that was a right bugger to track down in Etka!

Those are revised part numbers, as of December 2013. Cost is 100.49 each at full RRP

There's no pics within Etka for these

I guess it could be 1 faulty sensor, rather than 2, since it appears to be flagging a discrepancy between the values it's presenting. Looking at Elsawin it appears 'sender 2' is the black one (G640)

You should not change both sensors at the same time!

It looks quite involved in terms of access and isn't simply swap it and forget about it.

You also need a 27mm socket

I've attached the Elsawin page for info
Attached Files
File Type: pdf D4 rear diff sensors.pdf (183.5 KB, 163 views)
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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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  #9  
Old 20th May 2016, 10:47 AM
nath nath is offline
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Many thanks mate
This is most appreciated
I actually have a picture of the sports diff uploaded to Flickr
Problem is I'm at work and it's not set to public yet

I'll do it when I'm at home

I'm gonna order the black one and see what happens
While I'm at it I may as well change the diff atf fluid

I'll try to find out which fluid it likes
Hope it's not the stupid stuff that's according to Audi is more than gold
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  #10  
Old 20th May 2016, 10:51 PM
nath nath is offline
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okay for future referance and just in case anyone else has the same happen

here im hoping is the offending item

https://www.flickr.com/photos/235252...posted-public/

https://www.flickr.com/photos/235252...posted-public/

https://www.flickr.com/photos/235252...posted-public/

a 27mm socket is required to change the sensor
and the new sensor does require adaptation (not had a look how you do that yet as never done one but have got vcds )

will top up with frsh atf fluid
if anyone can find what transmission fluid it is please that would be fantastic

got to give thanks to adrian e he has helped massively on this thanks mate
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