Originally Posted by Vladamir

My newly purchased 300D (non turbo) sometimes has a very rough idle and I'm wondering if this has something to do with the actual idling rev's...is my car meant to idle at 500rpm?....this seems very low, and it does feel as if the car is on the verge of stalling.

If this is too low, how do you increase the idle rev's

Other than the idle, the cars seems to be going well apart from some noise from one of the lifters, which I assume I will have to live with.

Car is doing 36mpg (imperial), so I guess thats about 38-39mpg (US Gallons) on 80mph runs....is this a reasonable figure or should I be expecting more?

Many thanks