well my auto gearbox in my 740 has finally crapped itself and i need a newie.

however, i have been told by the place i am sourcing the engine from that i need two things..
A) a transmission number (which i have been told is somewhere on the box itself, and
B) to see whether or not there is a half moon shape on the top of the bell housing.

i went and had a quick look and couldnt find either thing. now i know that the trans number is on a plate somehere but is it easily accessible without taking the box out and there was no half moon as far as i could tell.

i was also wondering, is the trans number somethine unique to each car or is it like a part number? and if it is, is it differend between euro, american, etc versions of the car or LHD/RHD versions. if it is, then could someone enlighten me on the trans number for a RHD australian version of the car and if it isnt, i need the standard transmission number for a 1988 740GL with the 4 speed auto.

sorry if i sound like a bit of a noob, it is cos, well, i am really and i just ned help geting my car to run!

 

Im not sure about the Half moon thing. Maybe they want to know it your car has a speed sensor. Then you would have a small half mood shaped in the top of the bellhousing.

There should be a plate on the side of the trans with a #like AW 70/71 or something like that.

 

ok, i have had a pretty good look under the car and i can't see a plate on the tranny at all. is it possible it may have come off at all? do you know which side it is on, tech?

 

It is on the left side. You might have to do some cleaning to read it. There should be like a rivet looking thing in the middle of it.

 

found it. cheers tech!

 

No problem Gald I could help.