Just a post that could possibly help someone out. Probably has been posted but this is my recent experience with the main dealer

Car failed MOT with what I expected headlights too low, rear level sensor, said they will check if the part is available and then quoted me £320 to fit. Seen that I had a 10 day retest I declined and purchase the part for £30, the bit that snapped was the rubber  close to the ball connecting rod. I figured instead of unplugging and possibly having to 'recalibrate, I just removed the broken rod with just the new bit. Surprised as it came out easily. Job done and took me all 1\2hr as I didn't want to break anything

Total cost £30, Audi £320, absolute rip off as you would think they could just resolve the issue as I've done 

Lights back to normal instead of a few feet in front (dangerous)

Here is pics of what was replaced instead of the entire unit  

Hopefully this could help someone out 

Good on you. They're not called main stealers for nothing! 

Hi Bendella,

A good tip is to give the ball joints a good coating

of  anti seize grease, this will prevent any further 

trouble.

hope this helps.

Brian.