Odd symptom, what could this be?
I go up and down a few hills on my commute every day and lately I've noticed sort of a slight intemittent drag from my 560sl when going down hill. What I mean is when going down hill in gear at speed (40-50mph), it almost feels like there is a very light, intemittent tap on the brakes. No extraneous noises, just a very slight hesitation. No pull either way, can't tell if it's front or rear related. Really odd. Transmission maybe?
I guess I could try taking it out of gear to see if maybe there is a brake hanging up or something.