w124 M103 fitting auto box oil cooler .

[optimusprime]

I need to do this job .My car is a few years old now .The radiator is fine with no leaks .But i read from time to time that the coolant pipes that go through the radiator can leak .And in doing so coolant gets in to the auto box to damage it .
So its a good idea to fix in there a new oil cooler .
Question is , is there any one on the forum thats done this mod .
If so could they please give some guidance .May be a picture of finished install. And what parts were used .