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ANY SUGGESTIONS!!! HELP!!
I HAVE a 2000/2001 model A3 TDI 110BHP AND I AM HAVING TROUBLE with the WATER TEMP LIGHT coming on all the time!!
IT started a few weeks ago and i then topped up the header tank and the display light automatically went out. one week then passed and it done the same,then it got more frequent every 2 days!!!
i left the car sitting static for 1 week in my garage as i was on holiday,when i returned i noticed that the HEADER TANK had a YELLOW FROTHY SUBSTANCE IN IT!!!
THE CAR HAS NO VISSIBLE LEAKS!,AND THE OIL IS FINE NO WATER IN THE OIL. ALSO THE FOOTWELLS OF THE CAR ARE BONE DRY INSIDE NO SIGNS OF LEAKING WATER

ANY HELP WOULD BE MUCH APPRECIATED