E30 Zone

I've had my 320i convertible for over a year now and ever since there has been a sort of judder at low speed.
It happens in any gear but is particularly annoying when trying to maintain constant low speed, 50 mph in 5th gear.
I can accelerate or lift my foot of the throttle but the car just judder if I want to maintain the speed.

Any input will be much appreciated.
Cheers.

Prop shaft? could be incorrectly fitted, pop it out of gear at 50 mph, same?


Paul

Thank you for your reply.
I will check this this evening on the way from work.
Cheers.
Peter.

still not fixed.
it is not the prop shaft.

the car has also a problem with revs at idle. I was told that this might be linked.
Changed an ICV today and is better when the car is cold.
I was also told that the MAF might be responsible for the rough idle.
how do I check it the MAF is not working correctly?

cheers