pgrbff Posted July 7, 2014 Share Posted July 7, 2014 When I used the heater the other day I noticed the air remained cold even though the heater gauge showed the engine was warm. Eventually the heater did come on. Later that day the same thing happened but the gauge almost went to red before suddenly the heater produced hot air and the temp gauge dropped instantly. Any ideas? 300Tdi Quote Link to comment Share on other sites More sharing options...
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