Mercedes Automatic Transmission Won't Upshift Part 1: Troubleshooting Shift Problem

Help Kent try to figure out why his transmission won't shift out of first gear after doing a fluid and filter service. Applies to all transmissions 1977 to 1995. 240D 300D 300CD 300TD 280E 280CE 300SD 450SE/L 380SEL 500SEL 420SEL 300SDL 350SDL 300SE 300SEL 190D 190E 260E 300E 300TE 300CE., Etc. Answer will be posted on a YouTube video once solution is found.

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Problem & Solution