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The heater doesn't clear the windows

I have a 51 plate Astra 1.6. The problem is all the windows steam up after 10 mins. The heater is working on all speeds and all the vents are blowing hot air OK, but the windows are still not clearing unless I drive with them open about 3 inches.

Asked on 4 January 2012 by roma2

Answered by Honest John
Blocked pollen filter. Somewhere between the bulkhead vent well and the cabin. Find it and replace it.

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