A6 C7 Allroad - Air Suspension Drops At Rear When Parked

[mrming]

Hey all,

Having an issue with the air suspension on our 2013 C7 Allroad.

• When parked car gradually drops at the rear, eventually ending up at Full Dub Scene
• You can sometimes hear a hiss as if the system is ejecting air
• Starting the car causes the suspension to rise, and it drives normally (for now)
• Have seen an error once related to not enough air in the system

I suspect either a leak, or the system getting confused in some way and ejecting air because it doesn't know it's level?

My usually excellent independent Audi garage is finding it hard to diagnose.

Any hints or advice would be greatly appreciated.

 

[elan2s]

This guy seems to be the go to person for anything relating to air suspension Audis

http://www.bagpipingandy.com

 

[NHN]

Is the compressor constantly running when driving as this would point towards a leak imho.

 

[the_ace1982]

Mine had this issue, a friend has an autel code reader gizmo that can calibrate the suspension. Ran that and set it up and now its holds nicely.

 

[mrming]

To follow up, it was indeed a leak and our indie garage fitted 2 new airbags. It's been spot on ever since.