rear disc conversion sedan or touring?

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markus_74
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Post Wed Mar 09, 2016 7:52 am

Hello,

Should I use touring rear disc brake? Or stay with sedan rear disc?

I'm in the process of buying the calipers and discs so I think the price more or less will be same.

Does calipers ate 33 is for sedan with solid discs and ate 35/10 for touring with vented discs?

I assume the rear arms are same.

So the different is only at calipers and discs? Or what else should I aware?

Thank you
Markus
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Brianmoooore
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Post Wed Mar 09, 2016 9:21 am

Touring and saloon both use the same solid rear disc. The only difference in the rear brakes is that the touring uses a slightly larger piston in the caliper.
The difference is small, and as long as you use a matching pair, the choice doesn't really matter.
markus_74
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Post Wed Mar 09, 2016 12:34 pm

I see a rear vented disc what is it belong? Cabrio?
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Brianmoooore
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Post Wed Mar 09, 2016 1:39 pm

No E30s with vented rear discs. Nearest thing you will find with these is the Z3M, but those are 5 bolt discs, of course.
markus_74
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Post Wed Mar 09, 2016 5:29 pm

Thank you Brian. I sorted step by step all parts because I buy the part one by one.

My last question, I see that my drum brake use metal pipe to the master cylinder to push the pad, so if I will use discs brake I should connect it with additional hose(34321108134)?
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Brianmoooore
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Post Wed Mar 09, 2016 8:16 pm

Definitely need the extra flexible hose. Part # is 34 32 1 159 881. Don't recognise the part number you have.
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Lurch320i
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Post Thu Mar 10, 2016 11:34 pm

When I was researching big brakes for the rear I can across an e30 with rear vented discs
Some 325ix touring had 258x19mm vented rear disc

Part number 34 21 1 165 261 i





Source:http://bmwfans.info/parts-catalog/E30-T ... ar_sensor/