Guest raj Posted January 2, 2002 Share Posted January 2, 2002 The heater in my MKIV (Non Turbo) has never worked properly since I brought the car 6 months ago. Apparently a previous owner put 'radweld' into the system (probably to fix a leak in the cooling system). This has resulted in the heater matrix becoming blocked according to a garage. Since replacing the matrix means taking the entire dash out does anyone have any advice on how to fix this? Quote Link to comment Share on other sites More sharing options...
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