Hi,
I own a 10 year old Audi 80 SE. For the last year I have been experiencing a small problem with the car. I drive my car everyday on the motorway doing about 30 miles a day. Occasionally the car will start to judder and lose power, and when this happens I can only get a max speed of about 40-50 mph, no matter how much I press the gas pedal. It will stay for a about two or three minutes and then the power will just snap back suddenly. It has never stalled. No warning lights come on, so I have no idea what could be causing this. I think, but I'm not sure, that the car seems to behave better when the tank is full of petrol rather than half full. This only happens about once a fortnight, and I don't think any one activity makes it happen. Can you please help with some suggestions, thanks.
Cheers
O.