Differential Rub Noise

timothy2001 · 08-01-2022, 11:23 AM

Pretty sure I have seen posts about changing the fluid and adding an additive. When cold and conducting a sharp or U turn I get a rubbing or light groan sound from the rear suspect the differential.

2011 with 64k and having the fluid changed today but has anyone else experienced this noise?

kerrit · 08-01-2022, 02:26 PM

yep, super common. if it bugs you, get the fluid with the friction modifier to resolve it.

spammysammich · 08-01-2022, 04:28 PM

It's a groan and clunking noise. Very common with LSDs. That's how you know it's working (among other ways)

08-01-2022, 11:23 AM	#1
timothy2001 Major 849 Rep 1,181 Posts Drives: 2011 E92 M3 6MT ZCP Join Date: Oct 2014 Location: NE Florida iTrader: (0) Garage List 2011 M3 E92 [0.00]	Differential Rub Noise Pretty sure I have seen posts about changing the fluid and adding an additive. When cold and conducting a sharp or U turn I get a rubbing or light groan sound from the rear suspect the differential. 2011 with 64k and having the fluid changed today but has anyone else experienced this noise?
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08-01-2022, 02:26 PM	#2
kerrit Major 347 Rep 1,097 Posts Drives: Melbourne Red e90 M3 Join Date: Jul 2012 Location: Bellevue, WA iTrader: (4) Garage List 2008 E90 M3 [0.00] 2014 M5 CP [0.00]	yep, super common. if it bugs you, get the fluid with the friction modifier to resolve it. __________________ 6MT \| 11:1 Forged 4.1L \| ESS-G1 \| KW ClubSport \| Sparta 380/355 BBK
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08-01-2022, 04:28 PM	#3
spammysammich Major 1584 Rep 1,104 Posts Drives: 2009 E92 M3 Dakar Yellow II Join Date: Oct 2021 Location: Edmonds, WA iTrader: (0) Garage List 2009 BMW M3 [10.00]	It's a groan and clunking noise. Very common with LSDs. That's how you know it's working (among other ways)
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