R56 Cooper SD brakes upgrade (arguing with Sytner)

ElliotSD · Jun 17, 2014

Hi Guys

I am new to this website so excuse me if i am repeating anything but haven't learnt my way around this site yet. I have joined the site in search for some information as MINI Sytner will not listen to me as there parts catalogue is "never wrong".

Basically I own a Mini Cooper SD with all the kit on. I have just come to 12700 miles and i have been getting a horrible squeak so I took it in and on the third time after been sent away twice after been told nothing was wrong, I am now been told I need new discs and pads and that this is because of heavy breaking and over heating. I then find out that the same brakes are used on a cooper as the SD which I find somewhat stupid!

After chatting with the service manager he has advised I upgrade to the Cooper S brakes which are perforated, ventilated and 294mm diameter. Even though I'm no mechanic/expert the first thing I thought was how can you increase disc size but not calliper size as if not wont i be left with a 7mm rim on the inner of the disc where no connection is made so I will end up with a rusty 7mm rim round the inner edge. According to there parts catalogue this is not the case and my callipers can take the increased size discs and matching pads

As far as I was aware i would be needing Discs, Pads and also the calliper carrier?

If this isn't the case and the service manager is correct then great but it doesn't seem right due to the size increase.

Thanks in advance for your help

Cheers

Bainie · Jun 17, 2014

You need the carriers as well ,or go the whole hog and get some brembos ...

James_P · Jun 17, 2014

(R56) Cooper SD brake discs are 280mm. Cooper S are indeed 294mm.

As above you need S carriers. Calipers are the same.

ElliotSD · Jun 17, 2014

is this 100% the case?

as they have offered to fit the upgraded discs and pads for £225 but if the carrier is also the case it is an extra £160!

LEWIS_P · Jun 17, 2014

Petrol Cooper and Cooper SD have 20 BHP-ish between them and the Cooper D isn't far off 30BHP difference... hardly stupid.

Whilst I agree that it doesn't sound right they're making noise like that, but if it's broken, perfect chance to upgrade

ElliotSD · Jun 17, 2014

Does anybody know the part numbers for the cooper s carriers?

Cheers

George Talbot · Jun 17, 2014

RealOEM.com Online BMW Parts Catalog

Have a search.

James_P · Jun 17, 2014

£225 isn't a bad price.

I paid @the same. I have only read about have to replace the carriers on other forums, but they are 17mm larger in your case.

But, who know they may be right. Whatever way you look at it, they can only help in the long run.

Angib · Jun 17, 2014

I used to get really bad brake fade on my SD Roadster and can confirm that switching to S discs does solve it. I wouldn't describe the S brakes as much more than adequate and they don't feel any 'sharper' than the Cooper brakes but they don't fade anymore.

To fit the S discs requires new calliper carriers as well as the discs and pads themselves. Just the carriers are about £150 per pair but as that is about all the extra cost of doing the conversion when you are getting new discs anyway, it's great value. Both cars use the same callipers and the hydraulics do not need to be touched.

Attached is my photo guide to the conversion - it's no more work than fitting new discs and pads, so don't let the dealer rip you off on labour charges.

ElliotSD · Jun 17, 2014

Thanks for the help guys!!!

ElliotSD · Jun 17, 2014

For future reference for anyone with a new Mini Cooper sd, new carriers isn't the case

Mines a 63 plate so I don't know what other ages it applies to though

Thanks guys

Angib · Jun 18, 2014

ElliotSD said:
For future reference for anyone with a new Mini Cooper sd, new carriers isn't the case

Where is that information coming from, as I doubt it's correct?

An S with 294mm discs has calliper carriers with a different part number from the ones on a SD with 280mm discs, even for 2013 production.

R56 Cooper SD brakes upgrade (arguing with Sytner)

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