Sorry this is a little off topic Mercedes wise, but this is the only car forum I'm active with, so I can only ask you guys for help. So here I go....

I need a little help with my 1997 VW Jetta GLS 2.0L.
For the last couple months, when my wifes driving, inside the cabin area there's a strong exhaust smell that sometimes smells like gas. It seems to be coming in through the vents, and it switches between exhaust smell and a heavy gas smell. It doesn't seem to be leaking gasoline, as I've raised the car and checked. However its fuel consumption right now is out of this world, its horrible on gas and seems to be dumping raw fuel/ running very rich. I can't seem to figure out what the problem could possibly be. If you guys could give me any suggestions or idea's on what it might be it would make a world of a difference.

thanks

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