Hi folks, just wondering if any has any ideas of what my problem could be here.
I've an Audi S3 1999 and when I turned on the hot air there were strong fumes coming out.
After reading up on the forum, the most likely problem seemed to be the heater matrix. I replaced this. It was leaking coolant
Now, there is still fumes there when you turn on the hot air. It seems to be more noticeable for the first few seconds when you turn it on (but that could just be because you get used to it after that). What could be causing this?
My understanding of the set up is that the hot\cold air comes from the same input point. The only difference is when you turn on the hot air it gets redirected to pass over the heater matrix.
Any ideas or suggestions appreciated