Try parking the other way round - it's certainly something I experience on both my cars and neither leaks in any way.

Others may wish to differ, but I'm not sure you have a problem.

At this time of year carpets/foot mats may not dry out fully and this can cause condensation. Also, A/C does not function below about 5C, so you don't get the demisting this would normally give unless/until the temperature rises.

It's something I experience often in winter.

I doubt whether a leak of the A/C gas is involved - if that's what you're referring to.

Yep, exactly the same with mine. I've got a couple of those little moisture traps which pull out loads of water.

I have the same problem with my A4 so I’ve tried windscreen cleaner on the inside as there seems to be a greasy film which I can’t shift.

Even resorted to leaving a fan heater in there to see if that will help.

Quite honestly combined with the low sun at this time of year it’s a major problem for me in the narrow village roads.

Will do. Many thanks Metropolis

Suggested that me using a high pressure hose to wash the car was somehow wetting the pollen filter.

A farmer friend had that sort of problem, using a pressure washer to clean his car. I suspected the pressure washer was forcing water past the bottom of the door seals and soaking the carpets. I advised him to only use it pointing down, but couldn't suggest how he cleaned the door sills.