replacing ECU

[shields]

How do I know if my ECU is defective?

Can anyone walk me through replacing it? I'm not sure where it is on my 1987 325e.

Thanks

[ryan_george]

Not sure about how to tell if it's defective....
But it's located in the glove box. Remove the upper cover on the inside of the glove box and there's the Motronic box.
If you want to replace the chip:
Take it out of the car, and remove one side of the case (not sure which one right now.) There's a black grommet that holds the circuit board down. Removing it will allow the board to swing out. The chip you are looking for is a 24 pin that is plugged in (as opposed to soldered in). Hope that helps a bit.

[e304lyfe]

Not sure about how to tell if it's defective....
But it's located in the glove box. Remove the upper cover on the inside of the glove box and there's the Motronic box.
If you want to replace the chip:
Take it out of the car, and remove one side of the case (not sure which one right now.) There's a black grommet that holds the circuit board down. Removing it will allow the board to swing out. The chip you are looking for is a 24 pin that is plugged in (as opposed to soldered in). Hope that helps a bit.

you should disconnect the battery before u mess w/ that shit

[shields]

Thanks for the info.

Would a chip like this do for replacement?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7948019745&category=33597

[mcgrath]

that chip is for an i not an e.

[MR 325]

Do not buy those fake chips off of ebay. If you want a chip, get a real one from somewhere like www.turnermotorsport.com

[shields]

Part number??

Does anyone have the part number for the entire box? is it 0261200027 ??