I have had my Audi A3 for 4 years from new (originally leased) without problem. Two months ago the electronic handbrake would not release at a roundabout on a major A road. Nightmare. Worked ok again after this but happened again a month later. Audi garage could not find a fault. Now happened again at home. I am frightened to drive. Audi not returning my call -they seem to think there is nothing wrong and most of the time this is correct as problem is very intermittent. There are no fault lights or messages. I have to use the car but I am frightened it will happen again. Anyone got a resolution on this?