Vauxhall Astra 1.4i 1997 P
My Astra has suddenly started misting up very badly when it rains.
Its not a gradual problem, it just started doing it a couple of weeks ago.
The internal heater blower does sound a bit 'different', a bit wheezy if that makes sense. Need to have it on '2' rather than '1' to feel any air.
The effect is similar to when you turn the re-circulation button on. The windows mist up very quickly. (The problem is not the re-circ button, it is still working, as you can hear it changing from open to closed)
There appears to be no 'fresh' air coming into the system. If it is cold the car will mist up gradually. It it rains it mists up almost instantenously.
It never used to mist up at all, why is it doing it now?
Any suggestions or advice very welcome.
Regards
Phil
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Could be a pin-hole in the heater matrix - you do not need alot of water to mist up a car.
Have you checked the radiator level?
My sons had a Vauxhall Astra (1995) bought @ 9K mls - after 2 years I had not driven it but I needed to move the car - heard the water like plumbing in the house - checked the radiator - very low and none in the expansion tank - a carton of Barrs Leaks and that fixed it - sold in 2001 with 75,000 on clock and no more misting / leaking radiator. In fact in the 6 years apart from servicing etc it had been 100% reliable!!
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The first place to look an a mkIII Astra is the pollen filter. I suspect you will find it to be wet through. As soon as you turn the heater fan on, you draw moisture laden air in, through the damp filter. The cause, usually, is the seal between the plastic scuttle panel above the filter and the windscreen. Some try to seal them up, but I've found it best to fit a new one (they are a bit poor, and they tend to warp and twist, and never seal properly again.
Number_Cruncher
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Phil Walker
I agree with Number_Cruncher - first thing I'd check is the pollen filter. A common fault on older Mondeos too.
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to help dry thing up put a new hoover bag full of cat litter under the seat whilst you sort out the pollen filter for a couple of days
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www.puravent.co.uk/filters/dispfilter.pl?id=86
From a website that shows the world how to do websites !
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Thanks for all your suggestions.
I'll look at the heater matrix and pollen filters.
I'll give the cat litter thing a miss though! The interior isn't actually damp. (it doesn't steam up when parked in the sun) It only really steams up when the heater/blower is on.
Regards
Phil
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