the water tempreture gauge in my A4 is sometimes sitting at 0 then all of a sudden it goes to 90 then settles and sits at 50 ish.......if i switch of the engine and operate the ignition the temp gauge can read different.
there is hot air from the heaters even with the guage reading zero........is this just a faulty guage or could there be something else?????
prob just a coincidence but i just got the car back from vag garage as they had it in to get a new key coded as my keys got lost, the battery was also flat so the were messing about with the battery .....then when i drove away the guage stated playing up
any advice would be appreciated