Transmission Shifting

80 - 240D: Transmission shifts very hard during first shifting and then into high is very smooth. Changing filter and fuild?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Never hurts to change the transmission fluid & filter.
These boxes DO shift harder than we're used to, contemporary cars have smoother shifts from their electronically controlled boxes.
If ALL shifts were neck snappers then the vacuum powered shift modulation isn't working but you wrote the higher shifts were OK. So that's not the problem here.
You can check if the transmission's shift point is correctly adjusted. It's easy.
On the top rear of the engine, on its right side, you'll find a rod or cable that goes down to the transmission's right side. Use a flat blade screw driver to pry the ball socket on the rod's top end off its pin on the throttle linkage. Gently pull the rod and allow it to return to where ever it wants to be (its "natural position"). The rod's length is correct if, but only if, you can place the ball back onto its pin WITHOUT pulling or pushing the rod.
If pushing or pulling is needed, the rod's length ought to be changed. The rod's ball is secured by a lock nut, loosen it and turn the ball to lengthen or shorten the rod, snug its lock nut. If your car has a cable turn the cable's mounting nut that's on the top end of its outer case.
When this adjustment is correct snap the ball onto the pin (first give it a bit of ATF, oil or grease).
Now the transmission will correctly "know" the throttle position and shift accordingly, but firmly.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.