4WD Drive down on Audi S3 8V
- Thread starter K626855
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^^as above^^
Known issues are the haldex pump screen clogging up and the car becomes essentially a FWD. It can be cleaned and oil replaced. Not too expensive. If it been left too long it may have starved the pump, requiring a new pump. Circa £200.
Known issues are the haldex pump screen clogging up and the car becomes essentially a FWD. It can be cleaned and oil replaced. Not too expensive. If it been left too long it may have starved the pump, requiring a new pump. Circa £200.
I had it scanned but no error codes, the control module on Haldex was also reading, any thoughts on this?
I had it scanned but no error codes on VCDS? Any thoughts... I was told maybe it’s mechanical rather than electrical?
If you have VCDS you can log parameters (from Ox22 blockmap) to narrow the diagnosis : what are the axle/wheel deltas; is there a signal to actuate the pump/clutch; is the pump pumping or at least drawing current.
Lots of info on the web but very anecdotal and heavily weighted to the "toonah" crowd.
Out of interest what mileage is your car on, and has it always had the haldex oil changed at the recommended intervals? I’m just trying to understand if all of us can expect this job at some point, or whether it’s preventable with more frequent oil changes.
Best to expect it to be honest, but its not an expensive job thankfully. Whether more frequent oil changes (every 10k) sorts the problem remains to be seen.
