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Yesterday I got in my MY99 and wacked the heater on, as we all probably did. After about 3 minutes the heat started to come through. Then about 5 minutes into my journey the heater started blowing cold air into the car! after about a minute the air started to warm up, but never got to really hot as it normally does. Then again after a few minutes it went cold again.
This morning exactly the same the heat built up as the car ran for longer, then all of a sudden the cold came, and then the hot!
Is this a faulty heater? Or anything else I can try?
Thanks for (prompt) reply! I thought the cooling system was for engine temps? The Engine temp seems fine, gets to about half way and stops, and what are heater taps? can't find anything about "heater taps" on the web.