[CRJ]

2015 Audi Q3 20k miles - Haldex pump and fluid replaced, but light remains on. Audi shop diagnosed but wanted too much. I also have a tire pressure monitor light on but all tires are fine. Thanks for any help!
CRJ

 

[-Ju-]

Both are connected to the abs sensors so that would be a good place to start, do you know what fault codes are present?

 

[CRJ]

Both are connected to the abs sensors so that would be a good place to start, do you know what fault codes are present?

Hey Ju, thanks for responding, working on getting those fault codes. Where are the abs sensor(s) located, and are they easily replaced? Should have codes this afternoon, any codes I should be looking for?

 

[-Ju-]

I've no experience of the problem but having had many haldex cars, the pump is usually the culprit.
Have you cleared the existing codes after changing the pump?
The sensors are on all 4 wheels. That's how the ABS detects minute differences in rotation between the 4 wheels and these are interpreted by the haldex and tpms system.
The codes probably won't directly tell you what the problem is, its interpreting them that may lead you to the answer

 

[-Ju-]

Also did you do the pump yourself?
I think there is a pump reset procedure you have to do with vcds or similar after refitting

 

[Celticbiker]

Yeh that.
You need to re teach the ecu what the power draw from the pump is to reach the required pressure.

 

[spike]

Info on haldex gen5 servicing and reset procedure - Generation 5 Haldex Fault Finding Repair Guide - Haldex Parts and ECU Repairs by Auto Fault Finder 01270 440151 (haldexrepairs.co.uk)

Cheers /spike

 

[CRJ]

Also did you do the pump yourself?
I think there is a pump reset procedure you have to do with vcds or similar after refitting

Yes, I did it yesterday, no codes that we could see.