Diff noise?

Zervos4 · 11-25-2008, 12:32 PM

AHHHHH...welcome to my world...since I got my M in April, it's been in the shop 4 times now, around a month and a half accumulated service, my diff keeps backing out the bolts holding it up, and rubbing (as you stated) and clicking/clunking/thumping and eventually breaking off the head of the bolt...good luck, hope you don't have the same problem that I do...have your bimmer shop re-torque your diff bolts and see if they are loose at all...good luck

Charminar · 12-04-2008, 07:09 PM

Quote:

Originally Posted by GregW / Oregon

As I noted, my noise stopped immediately after the change to the updated fluid.

I have had the same issue. The service they performed that was identical to GregW's service. However, my noice did not stop immediately. I am still noicticing a bit of noice when I turn sharply. I am going to monitor this for another 500 miles, and see if it stops.

I don't what are the options if it doesn't

achenator · 12-07-2008, 09:29 PM

The m5 I drove for the M school had the noise when making a sharp u-turn. Sounded like a fender rubbing.

watrob · 12-07-2008, 10:00 PM

All e46 M3's & e9x M3's have this noise, the additive is called FMBooster fixes the problem and is added when the diff oil is first serviced. Half smart dealers should know this!

96OCTNE · 12-17-2008, 10:48 AM

Does anyone know the Service Bulletin # or have a link to it so I can take it to the BMW dealer? THX.

watrob · 12-17-2008, 05:20 PM

Quote:

Originally Posted by 96OCTNE

Does anyone know the Service Bulletin # or have a link to it so I can take it to the BMW dealer? THX.

Your dealer should know, its the same additive as the e46 M3's got put in there diffs!

GregW / Oregon · 12-18-2008, 08:19 AM

Quote:

Originally Posted by 96OCTNE

Does anyone know the Service Bulletin # or have a link to it so I can take it to the BMW dealer? THX.

SIB #63-14-07.

rzm3 · 01-07-2009, 08:28 AM

Just found this thread. Have the same noise. Thought something was broken again. Thanks GregW. Great work as always

rzm3 · 01-07-2009, 08:29 AM

Also I think this thread should be a STICKY as it affects quite a few people.

alex_gF80 · 01-09-2009, 12:42 AM

Yup, u guys are right it is the rear diff, causing the noise. BMW NA also released service information bulletin for this problem. According to the bulletin the fluid should be changed with the FM booster, and driven until diff fluid reaches operating temp. Finally the tech "should" drive the vehicle in circles 20 times both ways; this allows appropiate break in of the diff. Bulletin states that grinding noise may still be present for about another 500-600miles.

rzm3 · 01-09-2009, 10:44 AM

Did ur dealers ask you to replicate this problem? I went to momentum BMW and they wouldnt change my diff oil until the noise is replicated. And for some reason the car is not doing it. I am utterly pissed!

GMWNashville · 01-14-2009, 06:49 PM

bulletin is to change the fluid...it applies to all the m cars...can take up to 600 miles for the noises to go away...

rzm3 · 01-14-2009, 09:38 PM

went to different dealer and they changed the fluid w/o saying a word...

smokinjoe64 · 02-14-2009, 06:55 PM

Quote:

Originally Posted by volkswackin

bulletin is to change the fluid...it applies to all the m cars...can take up to 600 miles for the noises to go away...

I took my e92 in for an alignment and to address the intermittent diff noise and here's the response from BMW...(see attached)

Essentially, BMW says just live with it...

Cloud · 02-15-2009, 02:18 PM

I think that's for the bucking bronco issue ..

smokinjoe64 · 02-15-2009, 03:49 PM

In the big skeem of things...it ain't no big deal.

Cloud · 02-18-2009, 05:10 AM

well my differential is groaning louder than every day. Hope they can fix it.

gthirtyfizle · 02-23-2009, 01:56 AM

Just got the sound as well. How long does it take for them to change the fluid? I might leave it alone for a while but if theyre not to busy might just ask them to do it one of these days. Doesnt really bother me much tho, as long as I now know its nothing serious.

azhangie · 03-02-2009, 05:44 PM

Does this noise sound like a cd sliding across metal? I recently noticed this noise when I come to a stop or speeding up. It doesnt always happen, but when it does it doesnt sound normal.
I'm really really annoyed and worried I broke something.

dds02400 · 03-09-2009, 06:25 PM

i happen to have this noise starting....when turn in slow speed, esepcially parking lot? the sound to me is in the front? sounds like rubbing noise? is this the same problem people have?

GregW / Oregon · 03-09-2009, 06:31 PM

Quote:

Originally Posted by dds02400

i happen to have this noise starting....when turn in slow speed, esepcially parking lot? the sound to me is in the front? sounds like rubbing noise? is this the same problem people have?

Not if it is from the front. It sounds like a rear wheel rubbing on the fender liner, to me. Roll down you window in a parking garage and listen closely when turning.

Canyon Junkie · 03-10-2009, 05:09 PM

dude you should have that shit checked out before it falls off....

see other diff. thread

11-25-2008, 12:32 PM	#45
Zervos4 zervos4 17 Rep 97 Posts Drives: 08 e92 M3, 07 750i, 08 335i Join Date: Apr 2008 Location: Hurricane, WV iTrader: (0)	AHHHHH...welcome to my world...since I got my M in April, it's been in the shop 4 times now, around a month and a half accumulated service, my diff keeps backing out the bolts holding it up, and rubbing (as you stated) and clicking/clunking/thumping and eventually breaking off the head of the bolt...good luck, hope you don't have the same problem that I do...have your bimmer shop re-torque your diff bolts and see if they are loose at all...good luck __________________ 'The trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.' - Ronald Reagan
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12-07-2008, 09:29 PM	#47
achenator Lieutenant 26 Rep 549 Posts Drives: 2017 LBB M2, 2017 R8+ Join Date: Feb 2008 Location: Louisiana iTrader: (0)	The m5 I drove for the M school had the noise when making a sharp u-turn. Sounded like a fender rubbing.
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12-07-2008, 10:00 PM	#48
watrob Lieutenant Colonel 140 Rep 1,597 Posts Drives: MY2022 X5 M-Sport 45e White Join Date: Sep 2008 Location: Brisbane - Australia iTrader: (0) Garage List 2021 Toyota Yaris Z ... [0.00] 2022 BMW X5 G05 e45 [0.00] 2015 Ferrari Cali T [0.00]	All e46 M3's & e9x M3's have this noise, the additive is called FMBooster fixes the problem and is added when the diff oil is first serviced. Half smart dealers should know this! __________________ MY22 X5 M-Sport 45e White, 22"rims, Red Calipers, Ceramic Pads. Better off saying what it does not have and that's a B&O Audio System, otherwise all option boxes are ticked.
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12-17-2008, 10:48 AM	#49
96OCTNE Private First Class 35 Rep 199 Posts Drives: BMW M3 Join Date: Jul 2008 Location: East Coast iTrader: (0)	Does anyone know the Service Bulletin # or have a link to it so I can take it to the BMW dealer? THX.
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01-07-2009, 08:28 AM	#52
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	Just found this thread. Have the same noise. Thought something was broken again. Thanks GregW. Great work as always
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01-07-2009, 08:29 AM	#53
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	Also I think this thread should be a STICKY as it affects quite a few people.
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01-09-2009, 12:42 AM	#54
alex_gF80 New Member 0 Rep 5 Posts Drives: F80 M3 Join Date: Mar 2008 Location: Orange County iTrader: (0)	Yup, u guys are right it is the rear diff, causing the noise. BMW NA also released service information bulletin for this problem. According to the bulletin the fluid should be changed with the FM booster, and driven until diff fluid reaches operating temp. Finally the tech "should" drive the vehicle in circles 20 times both ways; this allows appropiate break in of the diff. Bulletin states that grinding noise may still be present for about another 500-600miles.
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01-09-2009, 10:44 AM	#55
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	Did ur dealers ask you to replicate this problem? I went to momentum BMW and they wouldnt change my diff oil until the noise is replicated. And for some reason the car is not doing it. I am utterly pissed!
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01-14-2009, 06:49 PM	#56
GMWNashville Colonel 172 Rep 2,373 Posts Drives: 19 G05, 16 F80, 10 E70x5D Join Date: Jan 2008 Location: Nashville, TN iTrader: (2)	bulletin is to change the fluid...it applies to all the m cars...can take up to 600 miles for the noises to go away...
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01-14-2009, 09:38 PM	#57
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	went to different dealer and they changed the fluid w/o saying a word...
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02-15-2009, 02:18 PM	#59
Cloud Lieutenant 62 Rep 484 Posts Drives: AW 2009 E92 6MT Join Date: Nov 2006 Location: Rowland Heights iTrader: (0)	I think that's for the bucking bronco issue ..
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02-15-2009, 03:49 PM	#60
smokinjoe64 Naval Aviator 589 Rep 674 Posts Drives: 12 e92 M3 6MT Join Date: Nov 2008 Location: OC CA iTrader: (1)	In the big skeem of things...it ain't no big deal. __________________ e92 M3 - Interlagos Blue \| *Fox Red Extended* \|Carbon Leather Performance Mods: Alpine Stage II E85; SuperSprint F1s; Cat-less Bomiz X-Pipe; aFe CAI; Bilstein B16s w/EDC; Brembo BBK; AutoSolutions SSK
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02-18-2009, 05:10 AM	#61
Cloud Lieutenant 62 Rep 484 Posts Drives: AW 2009 E92 6MT Join Date: Nov 2006 Location: Rowland Heights iTrader: (0)	well my differential is groaning louder than every day. Hope they can fix it.
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02-23-2009, 01:56 AM	#62
gthirtyfizle Colonel 191 Rep 2,867 Posts Drives: E92 M3 AW Join Date: Jul 2008 Location: NYC iTrader: (4)	Just got the sound as well. How long does it take for them to change the fluid? I might leave it alone for a while but if theyre not to busy might just ask them to do it one of these days. Doesnt really bother me much tho, as long as I now know its nothing serious.
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03-02-2009, 05:44 PM	#63
azhangie Enlisted Member 6 Rep 47 Posts Drives: 2008 M3 Join Date: Mar 2009 Location: w.LA iTrader: (0)	Does this noise sound like a cd sliding across metal? I recently noticed this noise when I come to a stop or speeding up. It doesnt always happen, but when it does it doesnt sound normal. I'm really really annoyed and worried I broke something.
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03-09-2009, 06:25 PM	#64
dds02400 Second Lieutenant 26 Rep 215 Posts Drives: m3 Join Date: Jan 2008 Location: san jose iTrader: (0)	i happen to have this noise starting....when turn in slow speed, esepcially parking lot? the sound to me is in the front? sounds like rubbing noise? is this the same problem people have?
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03-10-2009, 05:09 PM	#66
Canyon Junkie Private First Class 5 Rep 110 Posts Drives: 2008 M3 Sedan Join Date: Aug 2008 Location: Boulder, CO iTrader: (0)	dude you should have that shit checked out before it falls off.... see other diff. thread __________________ “Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?" -George Carlin
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