Polyurethane bushings? - BMW 3-Series (E90 E92) Forum

Nikki · 03-11-2006, 03:03 PM

Does the 330i sport package come with polyurethane bushings, or are they rubber?

HRC · 03-11-2006, 03:46 PM

I believe they are rubber. Poly dries up really fast and squeeks if not lubed on a regular basis.

Danny

Nikki · 03-11-2006, 04:06 PM

Quote:

Originally Posted by HRC

I believe they are rubber. Poly dries up really fast and squeeks if not lubed on a regular basis.

Danny

most good polyurethane bushings have slots that hold grease in them and they're guaranteed not to squeek lifetime.

ward · 03-11-2006, 04:37 PM

I had poly bushings on my aftermarket sway's on my old E30 and after a couple of years they did start to squeak pretty bad.

Some of the nicer kits have a fitting to lube the bushings though (my RD bars didn't though)

HRC · 03-11-2006, 05:26 PM

Quote:

Originally Posted by Nikki

most good polyurethane bushings have slots that hold grease in them and they're guaranteed not to squeek lifetime.

I had neuspeed bars and they had slots in the bushings, and over a period of time, started to make noise...in every car I had them in.

Danny

larryn · 03-11-2006, 09:00 PM

The stock swaybar bushings are a rubber compound. Aftermarket are generally polyurethane. I've had UUC and RD Sport sways on previous bimmers, and they always needed an annual relubing. I think some are getting better, with grease fittings, but they still need regular maintenance.

The end-links also made noise after a while. I had to replace one set of UUC end links after they got contaminants in the ball sleeve (I think it was sand) and nearly seized. I would service them annually as well.

Even with the maintenance, they are totally worth it, if you track or autox your car.

Nikki · 03-11-2006, 10:46 PM

thanks for the info everyone

03-11-2006, 03:03 PM	#1
Nikki Major General Drives: '07 Z4 M Coupe Join Date: Aug 2005 Location: Malibu Posts: 6,298 iTrader: (6) Garage List 2007 BMW Z4 M Coupe [3.97]	Polyurethane bushings? Does the 330i sport package come with polyurethane bushings, or are they rubber? __________________ Nikki '07 M Coupe/Sepang Bronze/Sepang Brown Leather/Carbon Leather Trim/Premium Package Heated Seats/Sirius XM/RE Diablo Exhaust/Stubby Antenna/19" BBS LM-R Diamond Black Order Zpost stickers HERE!
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03-11-2006, 03:46 PM	#2
HRC MAUI BUILT Drives: 2006 330i MT Join Date: Jun 2005 Location: NORCAL Posts: 7,766 iTrader: (8) Garage List 2006 330i [0.00]	I believe they are rubber. Poly dries up really fast and squeeks if not lubed on a regular basis. Danny __________________ Arctic/Blk Leather/Alum.Trim/MT/ZSP/Sunshades/Blk Lines/M3 Illuminated Knob/Alcantara Performance Wheel/M-E-Brake Handle/Euro Fog Switch/Koni Yellows/H&R Sport Springs/19" VMR V718's w/PS2 Tires/M-Tech Body Kit/Carbon Fiber Spoiler/Bimmian Interior Bulbs/OEM Eye Glass Tray/SSK/Alcantara Boot/Split Armrest/OEM Dual Rear Power Outlets/Rear Ashtray Delete/OEM Alum. Pedals/Osram 6000K/Brex Rings/LED Side Markers/BMS Power Box

03-11-2006, 10:46 PM	#7
Nikki Major General Drives: '07 Z4 M Coupe Join Date: Aug 2005 Location: Malibu Posts: 6,298 iTrader: (6) Garage List 2007 BMW Z4 M Coupe [3.97]	thanks for the info everyone __________________ Nikki '07 M Coupe/Sepang Bronze/Sepang Brown Leather/Carbon Leather Trim/Premium Package Heated Seats/Sirius XM/RE Diablo Exhaust/Stubby Antenna/19" BBS LM-R Diamond Black Order Zpost stickers HERE!

03-11-2006, 04:37 PM	#4
ward Lieutenant General Drives: F Join Date: May 2005 Location: T Posts: 6,184 iTrader: (0)	I had poly bushings on my aftermarket sway's on my old E30 and after a couple of years they did start to squeak pretty bad. Some of the nicer kits have a fitting to lube the bushings though (my RD bars didn't though)

03-11-2006, 09:00 PM	#6
larryn Major General Drives: '97 332ti, '08 135i Join Date: May 2005 Location: Massachusetts Posts: 8,242 iTrader: (1)	The stock swaybar bushings are a rubber compound. Aftermarket are generally polyurethane. I've had UUC and RD Sport sways on previous bimmers, and they always needed an annual relubing. I think some are getting better, with grease fittings, but they still need regular maintenance. The end-links also made noise after a while. I had to replace one set of UUC end links after they got contaminants in the ball sleeve (I think it was sand) and nearly seized. I would service them annually as well. Even with the maintenance, they are totally worth it, if you track or autox your car.