Thanks. Well I have the car for sale, but I want to perhaps change the plugs. As mentioned in my ad, my car has the slight "pulsation" occasionally on light and steady acceleration. Its like I am gently "working" the pedal when I am actually holding it steady.

So, I wonder if that could be the plugs or that airflow potentiometer that chowbow mentions? Seems easy enough, but I am not comfortable with working with fuel lines (and the instructions say a fuel line has to be removed), but I would like to get it fixed. Maybe a local MB mechanic can do it.... or the new owner?