How to DIY change the oil pressure sensor on your Mk1 Audi TT 1.8 Turbo when you get the Red oil Can icon on the dash but it is obvious nothing is actually wrong with your oil pump/pickup pipe...PLEASE MAKE SURE you are convinced this is the case - if there is a oil pump or pickup pipe issue you could RUIN YOUR ENGINE. If the engine seems ok and isn't getting overly hot or making weird noises it may just be the pressure sensor has failed and the pressure is actually ok....