When I first start my car in the morning or even after it sits for a few hours there is a pretty strong gas smell through my climate control system.

I have it at the dealer but they can't find the source.

Any ideas????

Thanks

Are you sure it's coming in the climate control and not just in the cabin from another source? I'm not familiar with MB systems ... yet. Some BMW's had leaking sending units accessible under the rear seat. Perhaps MB uses a similar setup.

Rgds,
Norm

not sure where it is coming from - just that I smell it when the car first starts up.