Main relay part number?

[Ender.]

I cant seem to find a part number for it anywhere? Im talking about the relay that sits to the left of the fuel pump relay. Is it just a universal 5-prong relay? Any help is appreciated.

Thanks.

[strad]

Mine has five prongs. Search under DME relay -- that's how my parts guy found mine -- he could not find it under "main relay". Mine's made by Siemens.

[Ender.]

Mine has five prongs. Search under DME relay -- that's how my parts guy found mine -- he could not find it under "main relay". Mine's made by Siemens.

Good call, mine is a 5 prong too. Ill take a look.

[Ender.]

I found one on bavautos website, but it says that is is the main relay on some cars. I wish I could find the it!

[strad]

Okay, pulled the relay, as well as the old one I had on the shelf. Both parts are correct for a late M20b25. Don't know if correct for an M20b27.

Siemens (the old one)
V23134-C52-X90
BMW 12.63-1729004

Unknown brand (logo is S on top of X) (the one currently in the car)
89 9509 000
PA6.6-GF35
Made in Hungary

I ran into the same issue as you online. Ended up going to a local European parts specialist, who found the DME relay for me. He thought the generic might work, until I pointed out that the little retaining hooks on the side of the relay needed to be present for it to stay tight in the receptacle.

[jlevie]

A generic relay w/o the side bumps works fine. A tie-wrap can be used to hold the relay in the socket and that solution is much more secure than the side bump retainer.

[DaveSmed]

Watch using a generic 5 pin, as from what I have seen, there a dual 87 design. (as opposed to having an 87 and an 87a)

[Ender.]

Cool thanks for the help guys.