Have a transmission leak in my 1986 420-SEL. Brought it to a local repair shop to see if he could find it. He said it was seeping from around a large hex-head bolt, just above the pan, but not knowing Mercedes transmissions, was reluntant to touch it.

After printed out a picture of transmission and showing it to him, it looks like the seeping is from the large plug that holds the Brake B thrust element.

Any issues with removing the bolt and replacing the o-rings myself? His concern is my concern, what is behind the bolt that may be difficult to replace or cause additional damage?

Thanks

Brian

Might require needle nose vise grips to remove the reaction valve where the o-rings are leaking.

& of course a large allen wrench to remove the plug.

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