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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Nov-17-2014, 02:45:55 AM   #1
bngl3rt
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Default Diff clunk/squeak/quack after changing fluid

Hi all,

I just got my 06 ZCP with 103000 miles on it a few weeks ago. The OBC was showing it almost due for inspection so I thought why not get to know the car a bit by DIY-ing some parts of Inspection-2.

I changed the diff fluid today and put in almost 3 bottles worth of the OEM BMW stuff. The fluid that came out when I drained the diff was very dark and sludgey so I assume that it had never been changed before from new.

However now when the car starts moving (right as the SMG engages the clutch) I hear a little clunk/squeak/quack from the diff where I didn't before.

I don't think there's "break in" time on fluids - any ideas what could be causing this? What should I do to fix it?

Thanks and look forward to getting to know you folks. Excited to put the next 100k miles on this car
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Old Mon, Nov-17-2014, 05:14:41 AM   #2
TboneM3
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Default Re: Diff clunk/squeak/quack after changing fluid

Did you do figure 8s right after putting new fluid in? Did you put the right amount (1.2L)? Yes, it's supposed to pour out of the fill hole, but was the car level?
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/525) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Old Mon, Nov-17-2014, 05:39:33 PM   #3
bngl3rt
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Default Re: Diff clunk/squeak/quack after changing fluid

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Originally Posted by TboneM3 View Post
Did you do figure 8s right after putting new fluid in? Did you put the right amount (1.2L)? Yes, it's supposed to pour out of the fill hole, but was the car level?
The car was level. I did fill until it came pouring back out the fill hole.

I went and did a lot of tight low speed turns in a parking lot right after, but clearly not enough. The noise seems to have gone away after some more driving around.
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Old Mon, Nov-17-2014, 05:48:58 PM   #4
TboneM3
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Default Re: Diff clunk/squeak/quack after changing fluid

It's probably fine.
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/// 2004 SilberGrau M3 · Coupe · 6MT · slicktop · manual seats · zero options · JOURNAL
-NA S54-


·Evolve-R Alpha N · Evolve CSL CF Airbox · Eventuri Scoop · Supersprint V1 stepped 63mm · SS V1 S pipe 63mm + 200 cell HFC · OE sect 2 60mm · SS Sport 60mm
·Besian · RE pullies/fan delete · WPC rod bearings · GroundControl S/A (Koni/Eibach 440/525) + tall RSMs · TMS Camber & Subframe plates · SPC Adj alloy rear camber arms
·RE Trans Mounts · AKG poly SUB/DIFF 95a · SDW RTAB · Weighted ///M knob + UUC DSSR + delrin carrier bush · OE CSL trunk · APEX 75mm Studs
·Sportline 8S 18"x8.5/9.5" · MPSS 245/275 · Brembo 996 36/40 345mm CSL Textar FF & 28/30 328mm CSL ATE "D738" FF · CM brackets & ss/teflon lines
·Pioneer DEH-80PRS · Eclipse PA5422 · CDT HD-6 + WS-100i · CDT EX-530 · 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 · PPI 1600.4 · CDT HD-6 + HD-100 · CDT EX-530 · DVC 10"
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Old Wed, Dec-03-2014, 07:22:57 PM   #5
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Default Re: Diff clunk/squeak/quack after changing fluid

It's finally raining in the Bay Area, so obviously I did lots of burnouts on the way to work this morning.

Now I think I have met the same unfortunate fate as this gentleman...

http://forum.e46fanatics.com/showthread.php?t=983034
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Old Wed, Dec-03-2014, 07:35:34 PM   #6
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Default Re: Diff clunk/squeak/quack after changing fluid

Quote:
Originally Posted by bngl3rt View Post
It's finally raining in the Bay Area, so obviously I did lots of burnouts on the way to work this morning.

Now I think I have met the same unfortunate fate as this gentleman...

http://forum.e46fanatics.com/showthread.php?t=983034
The bushing fell out?
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Old Wed, Dec-03-2014, 08:25:33 PM   #7
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Default Re: Diff clunk/squeak/quack after changing fluid

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Originally Posted by Fhcrubarb View Post
The bushing fell out?
I think the bolts snapped.
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Old Wed, Dec-03-2014, 08:34:18 PM   #8
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Default Re: Diff clunk/squeak/quack after changing fluid

You did get the the fluid with the XF/FM booster in it right? (EG fluid for limited slip).
Check your bottles to be sure.

ADS
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Old Wed, Dec-03-2014, 08:45:05 PM   #9
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Default Re: Diff clunk/squeak/quack after changing fluid

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Originally Posted by RedM3/4 View Post
You did get the the fluid with the XF/FM booster in it right? (EG fluid for limited slip).
Check your bottles to be sure.

ADS
Yep, OEM straight from the dealer.
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Old Thu, Dec-04-2014, 02:50:08 AM   #10
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Default Re: Diff clunk/squeak/quack after changing fluid

Yep, one of the diff bolts has sheared clean off leaving the diff hanging by the other one and rubbing the axle on the sway bar.

Not sure what to do at this point, but I basically think I have to drop the diff and might as well change the diff bushings at this point anyway.
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Discussing Heated Seat Retrofit in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)