hi all- newbie here- not sure where to start with the catalogue of problems I have had with my 2001 Audi A3 1.6 since I bought it 2 years ago

- but to be brief my current problem which I have been trying to resolve for the last year!!! is that when engine is warm and on tickover at traffic lights etc. the oil sensor light/sound is activated- now if I rev the car gently and keep it around the 1 mark it is ok-
the problem started when I had it serviced last August 06 and had a new oil filter fitted- I have had 3 filters fitted since that point- but think the mechanic must have disturbed something!!
I have had the pressure checked-fine
I have replaced the oil pressure switch- did nothing
new oil pump fitted-expensive waste of time (as that was what the Audi garage kept suggesting even though I new it couldn't be that as surely I wouldn't have been able to drive it for so long with the problem and the pressure was fine)
I even tried adding an additive to the oil
all the above have been very costly and still the blooming thing keeps beeping and flashing (technical terms!) at every set of traffic lights - now living in London you can imagine how many sets of lights i have to contend with and the volume on my stereo doesn't quite drown out the noise!!!
sorry to rant but its driving me to distraction- has anyone out there had a simliar experience????? Di