Hey Guys, I feel this very slight jerk or hesitation at highway speeds on my 2004 320i. It's very subtle, happens every few minutes on say a 45 min trip, so subtle but I can feel it. It seems to lessen the longer I drive at approx 3500 rpm's. I'm thinking maybe I need to replace the air filter or maybe the spark plugs are dirty or the transmission oil needs to be replaced, thoughts? Much appreciated!
P.s. it is a 5 speed manual stick with 240K km or 150K miles