Sunday 22 September 2019

Mercedes automatic gearbox only working in first and reverse gears

I am not very knowledgeable about auto gearboxes, but I came across this problem that turned out to have a nice easy answer.

This applies to all Mercedes auto gearboxes from the 80s and 90s, so all classic Hymers.

A guy posted on the "Classic Hymers Technical" Facebook group that his 1988 S550 auto would only work in first gear or reverse.

It turned out that it wasn't the gearbox at all! It was the kickdown switch located under the accelerator pedal. Some stuff had got in there and it was stuck on.

A nice easy fix, for what might have been a horrible situation.

There is a Youtube about it.


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