I have a kia ceed 1.6 diesel 2012 plate . The de mister seems to take a long time to clear the front windscreen . Before this I had a 52 plate vauxhall 1.7 Astra estate diesel and the de mister clear the windows right away . Has anyone else had this problem . I like my kia but this would put me off buying another 1 when I replace my car in a years time.
Read on a forum possibly this, that the problem can be a blocked pollen filter.
My demist problem seemed to be getting worse so today I have cleaned the pollen filter, so will see if it solves/improves the problem.
Incidentally you can wash the filters, just let them dry naturally as with dyson filters.