Automatic Gearbox regulation - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 04-10-2015, 08:07 AM Thread Starter
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Automatic Gearbox regulation

HI All,

In my W108 from 1972 I have 4 gears automataic gearbox - R 115 271 31 01 and have problem as shifting from 3rd to 4th gear does not work smoothly - there's a jerk. I heard there's a modulator which can be regulate but have no idea how to do it. Can anyone help me on this - where is the modulator and how it should be set.

The oil in gearbox is changed.

Thanks a lot
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post #2 of 2 (permalink) Old 04-10-2015, 08:59 AM
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if only one gear shift in a abnormal manner , it is a internal problem , adjusting the modulator will act on all gears .just make sure the vacuum line is correct .[ not leaking vacuum ]
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