Hello to you all,
Just signed up and better added vehicle details,
Audi Q3 2.0 L diesel 177 hp quattro s line triptronic gear box.
Currently my Q3 heating has gone south for warmer climes . The aux heater warms up the car when first started but fades to cool thereafter. No coolant leaks. my thoughts blocked/clogged matrix.
Looking for suggestions for this problem.
Kenny