Is it common for the ‘98’ e320 to downshift hard when slowing down or braking, I've notice my car seems to jerk when I’m slowing down or braking. I had Mercedes check the motor mounts and I was told that they were fine. I’ve also notice that when creeping at slow speed, if I come off the gas, the car doesn't glide but the speed drastically drops. I have a starmark warranty until 2/03 and if this isn’t common for the ‘98’ e320 I will have the dealer check the tranny out. If I take the car in and if they don’t find a problem will I be charged for diagnostic or will the starmark warranty cover the visit? If anyone can help answer my question I would be most thankful.