A3 3.2 2004 Haldex Control Unit

[RC A3 3.2 2004]

Hi
Have just joined after buying a 2004 A3 3.2 quattro sport.
Great car but have had a problem with the ESP/traction warning light come on. Took it to a specialist who says I need a new haldex control unit.
Can anyone help with advice / how to get hold of one that doesn't cost the earth?
Is is the 8P Gen2 version that I need?
Can i fit a second hand one from another car of similar or newer age (heard that older models are not compatible due to software issues) are the petrol and diesel versions interchangable.
Any help will be appreciated.
If you have one for sale, I would be interested.
Thanks
RC​

 

[autolatry]

You sure it's the controller and not the coupling?

You should get the upgraded control unit if you have to replace it.

 

[RC A3 3.2 2004]

The guy said there was no communication between the car and the AWD.
Have you had the upgraded unit? which one ?

 

[shariain]

Get it scanned with vdcs and post the logs on here. There are a fair few faults that can stop the ESP from working.

If you are 100% sure it's the haldex controller that's away then here is some info I found when I replaced mine last year.

Haldex control unit gen 2 part no.
A3 2004/2008
1K0 907 554 prefix C
Replaced by
1k0 525 130B obsolete
1k0 525 130F obsolete
Now
1K0 525 130L

R32 Golf 2005/2009
1k0 525 130L

TT 2007/2010
1k0 525 130L

I searched eBay for a like for like part and got one from Germany.

Also when I had the problem the ESP and abs light came on as far as I can remember.

 

[shariain]

here are my faults i had

ABS Brakes
Cannot be reached

Address 19: CAN Gateway
1 Fault Found:
01324 - Control Module for All Wheel Drive (J492)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 15
Reset counter: 56
Mileage: 120626 km
Time Indication: 0
Date: 2011.12.29
Time: 18:55:14

also

Address 22: AWD
4 Faults Found:
16347 - Control Module - EEPROM Error
014 - Defective
02248 - Valve for Controlling Clutch Operating Angle (N373)
014 - Defective
16347 - Control Module - EEPROM Error
014 - Defective
02248 - Valve for Controlling Clutch Operating Angle (N373)
014 - Defective

 

[Raskalius]

Do you have a link or contact url for the supplier of your haldex unit you got from Germany?

 

[SootySport]

Water gets into these, quite common on early Quattros. There's a few who repair them, Google them and there was one recommended on the forum a few months ago but can't remember the company.

 

[screechmr2]

I had mine repaired by http://www.ecutesting.com a couple of years ago.