Service on a 190e auto (2.0, 1989)

[saleem3]

As a matter of interest, other than changing the oil and filter, isn't there any tuning that needs to be done on the car? The mechanic didn't think so. Is this correct as the car's revs often jump about. I've cleaned the throttle and noticed that there was a lot of oil around the air filter. Anyone have any ideas as to what this could be other than general wear and tear?

Thanks