Not long after buying car, had to have driver seat replaced due to excessive movement. Replaced again 2 years later due to same problem (warranty).
Returned car to garage due to squeaking windows. Door adjustment fixed problem.
Car wouldn't start due to immobiliser not recognising key. Ignition barrel replaced, but problem still returns intermittently (warranty).
Knocking noise from steering resulted in replacement steering rack and universal joint (£1300).
On board computer reset button stopped working. Garage replaced dashboard cluster to rectify (£130, Audi UK paid 70%).
Car now back in garage because air bag warning light is on continuously.
Gear stick shakes when accelerating in 1st gear. Garage has been unable to repair.