Rear Diff Bushes

Matthewricha · 07-10-2020, 02:28 AM

Our 2011 F11 530d is now sitting at 90k miles and never had any clunking and these bushes have never been replaced.

I see one can get Meyle OEM bush (314 710 0025) for £25 but don't want to fit if it will fail after 40-50k miles.

But I see Powerflex now do bushes for our cars, wondered if anyone had fitted these? PFR5-6031 & PFR5-6032

I fitted Whiteline poly diff bushes to my previous E92 335i and it introduced quite a bit of diff whine, so a little hesitant.

Matthewricha · 07-10-2020, 01:00 PM

Just inspected rear bush, completely gone, two large cracks. No symptoms at all.

BDJL · 07-11-2020, 07:08 PM

Doing the bush is a pain in the behind but I've no idea on aftermarket. Did mine a couple of years ago and stock was the only option then. From what I understand, it is a 30-40k deal so now that I own the press tool, that interval will be workable to me. I'd say try the aftermarket, it can't be crappier than what BMW is using.

SWFLf10 · 07-11-2020, 11:07 PM

I also have been looking for an aftermarket option. I wasn't able to find anything, so I currently have an OEM gushing along with the tool I bought off eBay waiting in my garage. I hope to post a diy/video when I eventually get around to replacing it.

Matthewricha · 07-13-2020, 03:30 AM

Many thanks for your replies! You're brave attempting to do this yourselves. I have done suspension before, but never diff work.

Powerflex seems the only aftermarket option as far as I know. They do a rear bush only on both Purple and harder Black series compound. They also do a bushing kit which replaces all three bushes inc two front ones. My only reservation is increased NVH with aftermarket, but looks like the chinese made BMW part is not up to the torque delivered to it.

Powerflex kit:

Rear Bush Purple/Road Series:
https://www.powerflexsuspensionbushe...g-114833-p.asp

Front Bushes Purple/Road Series:
https://www.powerflexsuspensionbushe...g-114834-p.asp

Rear Bush Black Series:
https://www.powerflexsuspensionbushe...g-114719-p.asp

Front Bushes Black Series:
https://www.powerflexsuspensionbushe...g-114720-p.asp

Diff bushing kit:
https://www.bimmerworld.com/Powerfle...6-F13-F02.html

$howtime456 · 07-13-2020, 03:55 PM

I have done this mod with the powerflex race bushing. Def. A must.

Matthewricha · 07-14-2020, 01:18 AM

Did you use Black on all three or just rear bush? I've read that on other platforms that even Purple with oem subframe bushes can cause diff whine. How was yours?

$howtime456 · 07-14-2020, 05:40 PM

i have black and no issues.

Surly73 · 07-14-2020, 06:58 PM

Glad to here from someone who actually has these. I was thinking of them too.

07-10-2020, 02:28 AM	#1
Matthewricha Private First Class 43 Rep 132 Posts Drives: M235i Join Date: Dec 2013 Location: Hampshire iTrader: (0)	Rear Diff Bushes - Powerflex Bushes Our 2011 F11 530d is now sitting at 90k miles and never had any clunking and these bushes have never been replaced. I see one can get Meyle OEM bush (314 710 0025) for £25 but don't want to fit if it will fail after 40-50k miles. But I see Powerflex now do bushes for our cars, wondered if anyone had fitted these? PFR5-6031 & PFR5-6032 I fitted Whiteline poly diff bushes to my previous E92 335i and it introduced quite a bit of diff whine, so a little hesitant. Last edited by Matthewricha; 07-10-2020 at 03:18 AM..
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07-10-2020, 01:00 PM	#2
Matthewricha Private First Class 43 Rep 132 Posts Drives: M235i Join Date: Dec 2013 Location: Hampshire iTrader: (0)	Just inspected rear bush, completely gone, two large cracks. No symptoms at all.
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07-11-2020, 07:08 PM	#3
BDJL New Member 5 Rep 10 Posts Drives: 2011 550i 6MT, 2017 X1 M Sport Join Date: Aug 2015 Location: Reno, NV iTrader: (0)	Doing the bush is a pain in the behind but I've no idea on aftermarket. Did mine a couple of years ago and stock was the only option then. From what I understand, it is a 30-40k deal so now that I own the press tool, that interval will be workable to me. I'd say try the aftermarket, it can't be crappier than what BMW is using.
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07-11-2020, 11:07 PM	#4
SWFLf10 Captain 374 Rep 639 Posts Drives: 2016 Alpina B6, 2015 535i Join Date: Jun 2018 Location: Florida iTrader: (0) Garage List 2016 BMW Alpina B6 ... [10.00] 2015 BMW 535i [8.83]	I also have been looking for an aftermarket option. I wasn't able to find anything, so I currently have an OEM gushing along with the tool I bought off eBay waiting in my garage. I hope to post a diy/video when I eventually get around to replacing it.
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07-13-2020, 03:30 AM	#5
Matthewricha Private First Class 43 Rep 132 Posts Drives: M235i Join Date: Dec 2013 Location: Hampshire iTrader: (0)	Many thanks for your replies! You're brave attempting to do this yourselves. I have done suspension before, but never diff work. Powerflex seems the only aftermarket option as far as I know. They do a rear bush only on both Purple and harder Black series compound. They also do a bushing kit which replaces all three bushes inc two front ones. My only reservation is increased NVH with aftermarket, but looks like the chinese made BMW part is not up to the torque delivered to it. Powerflex kit: Rear Bush Purple/Road Series: https://www.powerflexsuspensionbushe...g-114833-p.asp Front Bushes Purple/Road Series: https://www.powerflexsuspensionbushe...g-114834-p.asp Rear Bush Black Series: https://www.powerflexsuspensionbushe...g-114719-p.asp Front Bushes Black Series: https://www.powerflexsuspensionbushe...g-114720-p.asp Diff bushing kit: https://www.bimmerworld.com/Powerfle...6-F13-F02.html Last edited by Matthewricha; 07-13-2020 at 11:25 AM..
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07-13-2020, 03:55 PM	#6
$howtime456 Major 301 Rep 1,230 Posts Drives: BMW 640i Join Date: Mar 2017 Location: NY iTrader: (0)	I have done this mod with the powerflex race bushing. Def. A must.
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07-14-2020, 01:18 AM	#7
Matthewricha Private First Class 43 Rep 132 Posts Drives: M235i Join Date: Dec 2013 Location: Hampshire iTrader: (0)	Did you use Black on all three or just rear bush? I've read that on other platforms that even Purple with oem subframe bushes can cause diff whine. How was yours? Last edited by Matthewricha; 07-14-2020 at 07:57 AM..
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07-14-2020, 05:40 PM	#8
$howtime456 Major 301 Rep 1,230 Posts Drives: BMW 640i Join Date: Mar 2017 Location: NY iTrader: (0)	i have black and no issues. __________________ N55 GENERAL David Shoup Tuned Fully Built By Miami Engines/Project Motorworks Precision 6266 On Steroids
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07-14-2020, 06:58 PM	#9
Surly73 Lieutenant Colonel 535 Rep 1,873 Posts Drives: '11 535xi 8AT KWv3 MPE MHD xHP Join Date: May 2012 Location: Oakville, Ontario iTrader: (1)	Glad to here from someone who actually has these. I was thinking of them too.
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