MAF
Author
Discussion

Invisible man

Original Poster:

39,731 posts

314 months

Tuesday 19th May 2009
quotequote all
Can anyone tell me if the MAF for an M3 is compatible with a 528i? I don't think so but there is one for sale on the US Ebay with all the right numbers but the guy says it's off a 528i

Siemens Ref: 5WK9 600
BMW OEM Ref: 1362 1 703 275


TheEnd

15,370 posts

218 months

Tuesday 19th May 2009
quotequote all
It'll fit the US M3 evos, but not any of the Euro ones, just the x23's and x28's with M52's

Invisible man

Original Poster:

39,731 posts

314 months

Wednesday 20th May 2009
quotequote all
TheEnd said:
It'll fit the US M3 evos, but not any of the Euro ones, just the x23's and x28's with M52's
mmmn, still confused, mine has the S52B32 US M3 block with an M52 single VANOS cylinder head with Alpina manifold, my son has a boggo 2.8i and his MAF is much smaller. So I don't see how those numbers could be the same as those on my MAF

TheEnd

15,370 posts

218 months

Wednesday 20th May 2009
quotequote all
I think you'll need to start from the top.
What exactly have you got, and what do you need?

The US M3s were pretty much a 3.0 M50 and a 3.2 M52, so like a 330 and 332 if they were in Europe.

all the M52's had the same siemens MAF, So the number you have listed above was fitted to 323s, 528s, 728s etc.

UK M3s had bigger MAFs.

If you have a B3 3.2, your MAF is a 13 62 1 403 123 which is the Euro M3 MAF

Invisible man

Original Poster:

39,731 posts

314 months

Thursday 21st May 2009
quotequote all
TheEnd said:
I think you'll need to start from the top.
What exactly have you got, and what do you need?

The US M3s were pretty much a 3.0 M50 and a 3.2 M52, so like a 330 and 332 if they were in Europe.

all the M52's had the same siemens MAF, So the number you have listed above was fitted to 323s, 528s, 728s etc.

UK M3s had bigger MAFs.

If you have a B3 3.2, your MAF is a 13 62 1 403 123 which is the Euro M3 MAF
yup, his was a 3" diameter US M3 one with the same numbers......weird