Headlight Level

[mcs]

OK, I scanned the car, It provided no error messages. I also tested the lights with the VCDS, and they went up and down just fine.

My car sinks at the front when it is parked, and after a few seconds pumps back up again (around 5-8mm) when it is turned on. If the lights are in auto, then sometimes before the car is pumped up, the LH one will come on and point down. If the lights are turned to off, then they usually are fine because the car has levelled before they are switched on.

It's all very strange.

Mike

[Delboy]

Ah so you have an issue with the adaptive suspension, that will create problems with headlight levelling as the info comes from the suspension height sensors.

Have you any faults logged for the level sensors or the level system in general like leaks, over temp etc.

If you do have a leak you run the risk of your compressor dieing trying to make up the loss.

[mcs]

No the suspension is fine.

I've had all the struts and compressor replaced last year.

The suspension has always let some air out when the car is locked. I left it in jacking mode for 3 days to check for leaks and there were none. The car moved up and down its travel quickly and works as it should.

Maybe the sensor itself is crappy. One of the first things i did was check the suspension.

Mike

[Delboy]

Got you, you mean the self level just as you lock it and walk away, thats normal behaviour.

Still doesn't explain the headlight though?