My 2001 A4 Avant 1,8 TS (8D chassis, corresponding to B5 saloon, motor
variant AJL) used to have coolant temp at a consistent 90C (is that
192F) during suburban driving, ambient temp between 0C-10C (32F-50F)
About one month ago it started showing coolant temp at a lower temp of
Oil temp has been and still is consistent at ca. 80C = 175F.
I suspect that either 1) the temperature sensor (mounted on top edge of
head, aft) may be giving a bad reading - or that 2) some thermostatic
valve is stuck, allowing 100% of all coolant to flow throught the
radiator, even if ambient temp is low.
But - on Audiworld I read articles that broken temp sensors tend to
fluctuate wildly, which mine does not do. Mine just reads low. So this
may indicate that I have something else wrong - but what?
Those of you - having a similar experience yourself - who managed to
fix this, can you pls tell me what you did?
Thanks, Robert in Gothenburg Sweden, where we're still waiting for winter.