Help with auto tranni 97 ti

[Shane]

new to bmw's bought car in abused condition. had this weird thing hanging down from center console was very hot to the touch. was told by the dealer i bought it from it was ok to remove. i cut it out after my daughter burned her leg on it and the car has not run the same. bought a replacment part installed and still not working right. checked voltage to part and i have 3 vdc that drops to zero when car is in gear and trann hazzard light comes on car runs like a tired dog now.

[familytruckster]

how about a pic of what it is and where it was? Sounds like it wasn't wired back up correctly or it was shorted when cut.

PN of part you replaced? name?

#7?

[Shane]

Hey familytruckster,
Thank you for posting.
It was part #7 on the diagram. I think i shorted out something when i cut it.
Would the Tranni control unit have anything to do with this part?

Thanks

[Monolith]

It's the shift interlock solenoid. Prevents movement of the shift lever under certain conditions for safety such as brake not engaged, etc.

See here for operation:
http://www.autoshop101.com/forms/h18.pdf

It's a Toyota link - can't find my BMW link at the moment. Same basic operation though.

[Shane]

Thanks for the link and the information Monolith.

I think i shorted out somthing when i cut it out (rookie move). after i bought the new part and plugged it back in did very basic checking like blown fuse, tried to trace wires but it is really hard to see where they go or end up. it used to get really hot to the touch and the pin in the center would pop out when the car was running. now it is cool to the touch and no movement with the replacement part.

[Monolith]

What year 318ti do you have? I might be able to find the wiring diagram for it.

Check your fuses and see if any are blown.

[Shane]

Hey Monolith,

I have checked all fuses and batt conections. its a 1997 ti. thank you for any info you can provide.

[Monolith]

Here's the wiring diagrams:

1997 318ti