What is currently installed in my '88 (all Contitech):
13x875
13x1040
10x888
Can I use the following (specs from vbeltguys):
13x855 (outside circumference is 33.77 in.)
13x1040 (yes)
10x865 (outside circumference is 0.5 in smaller than the 10x888)
Replacements are Contitech brand. Their 2015 PDF catalog says '85-'89 635csi all use the following:
AC: 13x800
ALT: 13x1040
PS: 10x888
But I thought there are different belt sizes between m30b35 & m30b34? They list different sizes between e28 & e34 5-series, but lump e24 6-series together.
Belt sizes for '88 w/m30b35?
Moderators: GRNSHRK, ron, bfons
Belt sizes for '88 w/m30b35?
'03 530i auto w/sport pkg 134,369 miles
'99 740il 6-spd 223,072 miles
'90 535i 5-spd 339,399 miles
'89 635csi auto 183,xxx miles
'88 635csi auto 322,342 miles
Gone:
'85 735i auto 181,xxx (California-approved "Gross Polluter")
'99 740il 6-spd 223,072 miles
'90 535i 5-spd 339,399 miles
'89 635csi auto 183,xxx miles
'88 635csi auto 322,342 miles
Gone:
'85 735i auto 181,xxx (California-approved "Gross Polluter")
- OnTheFritz
- Posts: 68
- Joined: Tue Apr 18, 2017 11:20 pm
- Location: Monroe, MI
Re: Belt sizes for '88 w/m30b35?
I would trust engine documentation listed under the E34 more than the E24 for post-6/87 cars just to avoid any potential mislabeling between websites and documents and whatnot. At least, that's what I've started doing personally. Worst case though, 10-20mm difference shouldn't be an issue if you can't find the proper size.
8/87 635CSi A, #3266516
Re: Belt sizes for '88 w/m30b35?
Thanks. I've found that when I enter the VIN on realoem, I get the parts breakdown for an e24 w/m30b34. So i just use the VIN from my '89 e24 for parts.OnTheFritz wrote: ↑Sun Jul 14, 2019 11:47 am I would trust engine documentation listed under the E34 more than the E24 for post-6/87 cars just to avoid any potential mislabeling between websites and documents and whatnot. At least, that's what I've started doing personally. Worst case though, 10-20mm difference shouldn't be an issue if you can't find the proper size.
I should rephrase the subject to "Will e34 m30b35 belts work on an e24 with the same engine since I have an extra set of e34 belts?".
'03 530i auto w/sport pkg 134,369 miles
'99 740il 6-spd 223,072 miles
'90 535i 5-spd 339,399 miles
'89 635csi auto 183,xxx miles
'88 635csi auto 322,342 miles
Gone:
'85 735i auto 181,xxx (California-approved "Gross Polluter")
'99 740il 6-spd 223,072 miles
'90 535i 5-spd 339,399 miles
'89 635csi auto 183,xxx miles
'88 635csi auto 322,342 miles
Gone:
'85 735i auto 181,xxx (California-approved "Gross Polluter")