thewayiseeit240

I have a 98' Audi A4 Quattro V6 2.8L 30V (B5)Tiptronic Automatic
108,600 Miles

The few problems I have are, when turning on the heater, and running the blower motor, the cabin begins to smell like exhaust, but eventually goes away. The smell is most strong when its a cold start and cold outside. The car does not overheat, nor do I think it leaks exhaust, maybe it does. The cabin air filter has also been changed.

The next issue is the transmission, but not sure if it is a problem. When I drive at a steady pace 60mph, at 2k rpms, sometimes the mph needle will get twitchy, like it will slightly jump, then go back to normal 60mph, not sure if the transmission is trying to shift or what.
The car has a tiptronic, but does not work or light up the cluster and there is no codes for it, hence I think the magnets fell off. I am not sure if it is a 4 speed or 5 speed automatic transmission, the instrumental panel labels D,4,3,2. The only code I get from VAG-COM is a brake light, and 2nd bank Cat exhaust.

The car also eats a lot of gas for some reason.

Any help is appreciated, thanks.