I have a 1982 240d with an automatic transmission. When I am speeding up sometimes I have to lift up on the accelerator a little when so my transmission will shift into a differnt gear. This is only when I am going about 35 mph and less. Whan I am at higher speeds it works fine. If I dont liftup on the accelator the car will kind of jerk, and then the engine will get really loud. The transmission fluid and filt has not been changed for a wile so I am wondering if that is the problem or if it is worn out. Any information on what this could be and how to fix it would be great. If it is worn out, is there a temporary fix for it. How much would it cost to get a used transmission and have it installed?
Thanks.