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rotors for 1980 m535i??? What to buy?
Posted: Thu Sep 13, 2012 9:03 am
by 2002jm
I am thinking about going through the brakes on the m535i. I have read that the 733, or is it the 735 rotors are the same. So do I just order brake rotors for a 1980 733? And do I order the pads for the 733?
thanks for any help,
jm
Posted: Thu Sep 13, 2012 10:05 am
by Mike W.
Look it up on Realoem, see what it's interchangable with, and order it up. I want to think M535 rotors are thicker and maybe unique, but I can't remember for sure. They may be a dealer item only in this country, if so look for Tischer or I think Blunttech can get all dealer parts too. Your local dealer is likely to be very expensive on this if they even want to deal with it at all.
thanks
Posted: Thu Sep 13, 2012 10:53 am
by 2002jm
Yes, the m535i is unique in regards to e12. rotor is thicker, but I keep reading that they used the 7 series rotor. So, it should be possible to order the same year 7 series, since that is the year they could use, and it would be a lot cheaper....but I am not sure. Will keep checking...
thanks for the info.
jm
Re: thanks
Posted: Fri Sep 14, 2012 2:43 am
by Falkenberg
Rotors seem to be 25 vs 22mm. Interesting, I find on BMWfans that both 25 and 22 are listed for the same caliper? That would imply that it is an easy upgrade to use the thicker rotors, right?
http://bmwfans.info/parts/catalog/E23/S ... rake_disc/
the only available 25mm disc seems to be part no 34111163141
spacer for m535 thanks for the information
Posted: Fri Sep 14, 2012 7:48 am
by 2002jm
I think the m535 has a spacer or something, because it uses the thicker rotor. I need to find some that does not need to be shipped from Germany:)
jm
Posted: Fri Sep 14, 2012 10:12 am
by Trevor M
Posted: Fri Sep 14, 2012 10:48 am
by Mike W.
OK, I'll do the work. Here's what fits.
E12: Details on E12
E12 535i Sedan, Europe
E23: Details on E23
E23 733i Sedan, USA
E23 735i Sedan, USA
E23 728i Sedan, Europe
E23 728iS Sedan, Europe
E23 732i Sedan, Europe
E23 735i Sedan, Europe
E23 733i Sedan, Europe
Click the link for full details.
http://www.realoem.com/bmw/partxref.do? ... showeur=on
It is my understanding the caliper difference is a spacer, but Realoem doesn't show that. I suppose they could have used a slightly thinner pad, 1.5MM each side would be no big deal, but it looks like the pads are the same too.
Thanks for the info.
Posted: Fri Sep 14, 2012 12:31 pm
by 2002jm
This is very helpful. Did not want to order the wrong rotor, because of the cost of shipping:).
thanks,
jm
Posted: Fri Sep 14, 2012 9:36 pm
by Mike W.
Even better news
Posted: Fri Sep 14, 2012 10:01 pm
by 2002jm
I was thinking I would have to buy these from some company that would charge a small fortune....rotors are really heavy. Thanks again to all of you that helped.
My car will be so much better with new rotors and some rad. hoses.
jm