[W126 Coupe] Transmission Spill

[Habib Smith]

guys thank you for you input so far. The problem is, this leak happened years ago. Since then I have removed the transmission and cleaned it up nice.. so I don't know exactly what to look for at this point. I remember reading in the archives about similar incidents with other members.. something about a seal or gasket near the top, or up higher, on the transmission.. does this ring a bell to anyone?







Is it kinda back a bit, around the middle of the car (past where the torque convertor is)? If it made a big leak while the car was stopped, I'm thinking it's something as simple as either the drainplug on the pan or the pan gasket. 
Richard 

Habib: 

You need to get under there and see where the leak originates. If the 
transmission was working fine up until the leak then I would expect it's 
repairable without a lot of fuss. Pan gaskets, valve body seals to 
modulator, shift linkage etc are all accessible with a bit of work and 
without having to remove the transmission. If you can identify which 
side of the valve body is soaked that would help. Take a look at the 
pinion seal at the rear where the flex disk attaches as well (unlikely 
cause of a massive leak). Take a rag and flashlight and have a look. 

Dick 

Habib: 

Also check the two transmission cooler lines that run from the 
transmission along the side of the lower block on the engine and connect 
to the radiator. These lines are metal and one or both may transition 
to a spring clad rubber hose up by the base of the radiator. One may 
have let go. I've replaced these as they start to leak at 130-140k or 
so on B's. 

Need more coffee, 
Dick 

Habib Smith wrote: 

> Does anyone know which seal, in the '87 560 SEC transmission, has gone 
> bad as the garage floor is covered in fluid one morning?? 
> 
> Also, what are used transmissions selling for? 
> 
> Thank You- 
> 
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