Rain leaking into Corsa?

Pools of water are collectiong behind the driver's seat of my car after it has been parked during heavy rain. It seems to be coming from under the dashboard as sometimes there is water on the front mats. I cannot trace where the water is coming in and it is not evident when driving in rain or during car wash.

Asked on 14 August 2015 by Highway61

Answered by Honest John
Rainwater coming in through the pollen filter because the drains either side of the bulkhead vent well are blocked, probably with leaf debris. You need to pop the bonnet and clear those drains.
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