Zafira 2000 ~ Heater very poor

My Zafira 1.8 Elegance petrol feels like the interior heating is supplied by a candle. It gets very slightly warm but nothing more. Not really sure where to start. Checked coolant levels and temp gauge normal.

Asked on 10 November 2010 by Rappid

Answered by Honest John
Blocked heater matrix or failed heater valve.
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