1991 300D 2.5 Turbo 305k, 2001 S600 110k, 2007 GL320CDI 4Matic 155k, 2007 E320 Bluetec 160k
The transmission in my 91 300D shifts too high (3000 rpm in first gear with 1/4 throttle) and too harsh. I noticed my vacuum lines were cracking, so I moved a couple of them around and it shifted smoother, but I could not figure out how to make the transmission shift earlier. After watching a video on Mercedes diesel transmission adjustments (watch 0:15-1:55) (), I found out the red rubber tube (black in the video) attached to the throttle linkages controlled shift timing. The problem is mine does not have the same adjusting nut as shown in the video, and it is on the left side of the engine, not the right. Does anyone know how to adjust the bowden cable on a w124 with the om602 engine?