Haldex stopped working after oil change

[FeDx_]

Hi all that might know..

I have a 2019 S3 which just today had a full service and haldex oil change, at an independent VW/Audi specialist (Mark Tempest Autocentre in Hertfordshire)
Upon driving the car home, it was blatantly apparent that the Haldex is not working. (spinning the fronts up at every junction, which it has never done in the nearly four years I have been driving it)

Please please please, someone tell me that the garage has just forgotten to plug a sensor or cable back in?!?!?!

I know for a fact the system was working perfectly before taking the car in, as I was recently enjoying the cold roads and 4 wheel drifting the larger roundabouts on my way to work each day.

 

[8YARWY]

Hi all that might know..

I have a 2019 S3 which just today had a full service and haldex oil change, at an independent VW/Audi specialist (Mark Tempest Autocentre in Hertfordshire)
Upon driving the car home, it was blatantly apparent that the Haldex is not working. (spinning the fronts up at every junction, which it has never done in the nearly four years I have been driving it)

Please please please, someone tell me that the garage has just forgotten to plug a sensor or cable back in?!?!?!

I know for a fact the system was working perfectly before taking the car in, as I was recently enjoying the cold roads and 4 wheel drifting the larger roundabouts on my way to work each day.

Take it back then…….


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[FeDx_]

Take it back then…….


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Oh I will be... just wanted to know if its possible that a simple oversight might have caused this?

It feels like the Haldex is completely disabled. Wondering if it has to be switched off whilst changing the oil, or needs some calibration within VCDS afterwards?

 

[8YARWY]

Oh I will be... just wanted to know if its possible that a simple oversight might have caused this?

It feels like the Haldex is completely disabled. Wondering if it has to be switched off whilst changing the oil, or needs some calibration within VCDS afterwards?

The pump can be cycled after a change to prime it.

The other way was to take it for a drive then re check the Haldex fluid level.


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[8YARWY]

Oh I will be... just wanted to know if its possible that a simple oversight might have caused this?

It feels like the Haldex is completely disabled. Wondering if it has to be switched off whilst changing the oil, or needs some calibration within VCDS afterwards?

Also depends if they unplugged it to clean the gauze.


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[FeDx_]

Also depends if they unplugged it to clean the gauze.


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I did ask them if they were going to clean the filter, and they said they would. What would they have unplugged to do that?