I have a 2000 A4 1.8T with 164,000 km's on it. Until recently my oil
temperature gauge would go up to either 80C or 100C depending on the season
and sit there. Now the gauge will start climbing when I accelerate to 120C.
When I am in stop and go traffic it will sometimes will go up to 160C and
then while I am still in stop and go traffic drop back down to 100C? The
radiator temperature never changes from the dead centre 90C. The oil
temperature climbs to 80C when I start driving for a bit and the excessive
temperature starts after about 10 minutes of driving. I have checked my oil
level and it is fine, any ideas would be greatly appreciated...