airtight!

[damo m]

On these cold mornings I have noticed that I have had to crank the heating up a little once I get onto a motorway as the cabin has become cold.

There is a large amount of air coming in somewhere around the 'shelf' to the right of the steering wheel. I presume it is from the door but I don't want to spend loads of time looking for it if it is 'one of those things'.

Does anyone else have this kind of problem?