xdrive issue again

amr_e90 · 02-28-2014, 12:02 PM

Ok guys my 07 6mt 335 has this weird symptom that I can't figure out at all. I have oem wheels and brand new tires all around. The issue is when accelerating there is this pulsation every second at a low rpm low load take off. This occurs between 1500 to about 4000 rpm. I don't have a misfire at all. My clutch is brand new also 5k on it. I know xdrive needs a rolling diameter of about 1% between front and rear but I have new tires all around with stock sizes. What could this be I'm stumped

dsjr2006 · 03-01-2014, 04:57 PM

Every second, like constantly or once every second or so?

And the rolling diameter should be under %1, not over. Sounds like that's not your issue though.

amr_e90 · 03-01-2014, 05:30 PM

Yea my tires are brand new factory sizes. Road forced balanced and all on stock 162 rims. And it happens like every other second in the lower gears on a light throttle input no codes

dsjr2006 · 03-02-2014, 05:23 PM

Where do you feel it coming from? Brakes? Driveline? Wheels? Steering? Seat?

infidel335 · 03-02-2014, 05:30 PM

Does this problem persist when you turn off your traction control?

ajsalida · 03-02-2014, 07:36 PM

Standard things if you haven't done 'em already. Loosen and hand torque wheels to spec, and again re-TQ with car on the ground. Set cold tire pressures. Just to eliminate simple stuff.

What kind of tires BTW? Some folks seem to be getting RFB's that don't work out so well, not sure everyone running those machines is exactly trained up right.

amr_e90 · 03-03-2014, 06:15 AM

Quote:

Originally Posted by dsjr2006

Where do you feel it coming from? Brakes? Driveline? Wheels? Steering? Seat?

Definitely driveline

amr_e90 · 03-03-2014, 06:16 AM

Quote:

Originally Posted by infidel335

Does this problem persist when you turn off your traction control?

Yes

amr_e90 · 03-04-2014, 07:15 AM

Bump

wdeerfield · 03-04-2014, 09:01 AM

have you had your diff fluid looked at? or TC fluid? how do your front cv axles look? and tore boots or grease leaking? Motor mounts? if you have the vibration and shift to neutral does it go away?

amr_e90 · 03-04-2014, 09:53 AM

Its not a constant vibration feeling. It's a pulsating feeling in the driveline its self. Feels like the xdrive is switching from front to back every second

pizza_party · 03-04-2014, 11:03 AM

When was the last time xfer case and both diff fluids were changed, and clutch was bled? Dirty fluid / air can cause some weird stuff

amr_e90 · 03-04-2014, 11:57 AM

All fluids were changed maybe 30k ago clutch was bled 10k ago

pits200 · 03-05-2014, 05:30 AM

Quote:

Originally Posted by amr_e90

All fluids were changed maybe 30k ago clutch was bled 10k ago

If it's at very low load it's possible it feels like driveline but my car had the same symptom when I had a bad o2 sensor and was causing some odd issues at very low load. It was very prevalent going uphill at low load. I highly doubt it's the derive as that thing has so many nannies that it should have tossed a code or show dtc light.

amr_e90 · 03-05-2014, 07:23 AM

I checked all o2s via inpa all performing as they should. Also replaced one of the rear ones got a code. Now I have no codes wats so ever.

The engine feels fine revs and boosts fine. Feels like my drive shaft is shifting or something

ajsalida · 03-05-2014, 12:01 PM

guibo? center bearing? 1 & 7:

http://www.realoem.com/bmw/showparts...33&hg=26&fg=10

dsjr2006 · 03-05-2014, 08:27 PM

Couldn't hurt to change the trans and t-case fluid. Does it matter what gear you're in?

amr_e90 · 03-05-2014, 09:14 PM

Quote:

Originally Posted by dsjr2006

Couldn't hurt to change the trans and t-case fluid. Does it matter what gear you're in?

happens most and i think only 1st threw 3rd

dsjr2006 · 03-06-2014, 07:50 AM

See if it's still there will with DSC completely off, you could also pull the fuse and disable Xdrive to eliminate that afterwards. It could be so many things..

02-28-2014, 12:02 PM	#1
amr_e90 Captain 203 Rep 801 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	xdrive issue again Ok guys my 07 6mt 335 has this weird symptom that I can't figure out at all. I have oem wheels and brand new tires all around. The issue is when accelerating there is this pulsation every second at a low rpm low load take off. This occurs between 1500 to about 4000 rpm. I don't have a misfire at all. My clutch is brand new also 5k on it. I know xdrive needs a rolling diameter of about 1% between front and rear but I have new tires all around with stock sizes. What could this be I'm stumped __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
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03-01-2014, 04:57 PM	#2
dsjr2006 Captain 157 Rep 848 Posts Drives: '01 E39 540iA, '09 E90 M3 Join Date: May 2013 Location: Metro Detroit iTrader: (1) Garage List 2010 BMW 335i [0.00] 2001 BMW 540i [0.00]	Every second, like constantly or once every second or so? And the rolling diameter should be under %1, not over. Sounds like that's not your issue though. __________________ E90 M3 DCT LCI \| E90 LCI N54 M-Sport(retired) \| E90 Technical Docs download: http://j.mp/bmwe90docs *good read, very detailed.
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03-01-2014, 05:30 PM	#3
amr_e90 Captain 203 Rep 801 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	Yea my tires are brand new factory sizes. Road forced balanced and all on stock 162 rims. And it happens like every other second in the lower gears on a light throttle input no codes __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
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03-02-2014, 05:23 PM	#4
dsjr2006 Captain 157 Rep 848 Posts Drives: '01 E39 540iA, '09 E90 M3 Join Date: May 2013 Location: Metro Detroit iTrader: (1) Garage List 2010 BMW 335i [0.00] 2001 BMW 540i [0.00]	Where do you feel it coming from? Brakes? Driveline? Wheels? Steering? Seat? __________________ E90 M3 DCT LCI \| E90 LCI N54 M-Sport(retired) \| E90 Technical Docs download: http://j.mp/bmwe90docs *good read, very detailed.
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03-02-2014, 05:30 PM	#5
infidel335 Lieutenant 29 Rep 454 Posts Drives: 2009 335xi Join Date: May 2012 Location: NoVA iTrader: (0)	Does this problem persist when you turn off your traction control? __________________ 335xi: JB4 G5 \| KW V1s \| muffler delete \| BMS DCI \| VRSF 7" FMIC \| VMR v703 18x8 \| and your mom
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03-02-2014, 07:36 PM	#6
ajsalida Colonel 226 Rep 2,387 Posts Drives: 95 M3, 02 R1150GSA, 09 335xi Join Date: Aug 2010 Location: SW USA iTrader: (2)	Standard things if you haven't done 'em already. Loosen and hand torque wheels to spec, and again re-TQ with car on the ground. Set cold tire pressures. Just to eliminate simple stuff. What kind of tires BTW? Some folks seem to be getting RFB's that don't work out so well, not sure everyone running those machines is exactly trained up right.
	Appreciate 0 Quote

03-04-2014, 07:15 AM	#9
amr_e90 Captain 203 Rep 801 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	Bump __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
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03-04-2014, 09:01 AM	#10
wdeerfield A family of bimmers 2745 Rep 7,742 Posts Drives: '18 G01 X3M40i Join Date: Jan 2012 Location: Clifton Park, NY iTrader: (0)	have you had your diff fluid looked at? or TC fluid? how do your front cv axles look? and tore boots or grease leaking? Motor mounts? if you have the vibration and shift to neutral does it go away? __________________ 2018 PB/Black G01 X3M40i \| 699M \| ZDA \| ZPP \| ZPX \| Maxton front lip \| X3M vents \| 15mm Spacers \| Diamond G20 style grills
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03-04-2014, 09:53 AM	#11
amr_e90 Captain 203 Rep 801 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	Its not a constant vibration feeling. It's a pulsating feeling in the driveline its self. Feels like the xdrive is switching from front to back every second __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
	Appreciate 0 Quote

03-04-2014, 11:03 AM	#12
pizza_party Enlisted Member 2 Rep 43 Posts Drives: 06 E90 325xi Join Date: Nov 2013 Location: Chicago iTrader: (1)	When was the last time xfer case and both diff fluids were changed, and clutch was bled? Dirty fluid / air can cause some weird stuff
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03-04-2014, 11:57 AM	#13
amr_e90 Captain 203 Rep 801 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	All fluids were changed maybe 30k ago clutch was bled 10k ago __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
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03-05-2014, 07:23 AM	#15
amr_e90 Captain 203 Rep 801 Posts Drives: e90 335xi 6mt Join Date: Apr 2012 Location: boston,Ma iTrader: (2)	I checked all o2s via inpa all performing as they should. Also replaced one of the rear ones got a code. Now I have no codes wats so ever. The engine feels fine revs and boosts fine. Feels like my drive shaft is shifting or something __________________ 14 M5 / comp / CCBs / alpine white PG intakes Evolve tune Switzer exhaust Fabworx pipes
	Appreciate 0 Quote

03-05-2014, 12:01 PM	#16
ajsalida Colonel 226 Rep 2,387 Posts Drives: 95 M3, 02 R1150GSA, 09 335xi Join Date: Aug 2010 Location: SW USA iTrader: (2)	guibo? center bearing? 1 & 7: http://www.realoem.com/bmw/showparts...33&hg=26&fg=10
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03-05-2014, 08:27 PM	#17
dsjr2006 Captain 157 Rep 848 Posts Drives: '01 E39 540iA, '09 E90 M3 Join Date: May 2013 Location: Metro Detroit iTrader: (1) Garage List 2010 BMW 335i [0.00] 2001 BMW 540i [0.00]	Couldn't hurt to change the trans and t-case fluid. Does it matter what gear you're in? __________________ E90 M3 DCT LCI \| E90 LCI N54 M-Sport(retired) \| E90 Technical Docs download: http://j.mp/bmwe90docs *good read, very detailed.
	Appreciate 0 Quote

03-06-2014, 07:50 AM	#19
dsjr2006 Captain 157 Rep 848 Posts Drives: '01 E39 540iA, '09 E90 M3 Join Date: May 2013 Location: Metro Detroit iTrader: (1) Garage List 2010 BMW 335i [0.00] 2001 BMW 540i [0.00]	See if it's still there will with DSC completely off, you could also pull the fuse and disable Xdrive to eliminate that afterwards. It could be so many things.. __________________ E90 M3 DCT LCI \| E90 LCI N54 M-Sport(retired) \| E90 Technical Docs download: http://j.mp/bmwe90docs *good read, very detailed.
	Appreciate 0 Quote