Dear Sir i have a overheating problem with my audi V8 .i have done every thing that i know that can cause that problem , i change the water pump ,thermastat . i had a compression test on the engine done and i had the head gasket . the radiator is Ok , and the hose is Ok also . but the car is still overheating when it is being driven . when it is idleing it do not overheat . do you have any solution ?

Many Thanks Mr Kent