Grinding sound from Step Tranny 335 E90

Fraggy · 11-14-2007, 09:43 AM

Frequently when accelerating or decelerating, from a stop up to about 1800 rpm and back down to stop, the transmission makes a slight grinding sound. Its loud enough that my 79 year old mom hears it and my wife as well.

Both assumed it was a wheel or tire rubbing, but once above 1800 it stops, and when slowing down, once the transmission releases, the sound stops again.

Any ideas? Anyone else had this? I dont remember it when the car was new but I might have missed it. Its seem a bit loud to be normal.

sflgator · 11-14-2007, 09:46 AM

All of us guys just guessing about your car's problem is kind of pointless; just bring your car in for service and let them diagnose and fix the problem. G/L.

e90fanatic · 11-14-2007, 09:54 AM

Quote:

Originally Posted by sflgator

All of us guys just guessing about your car's problem is kind of pointless; just bring your car in for service and let them diagnose and fix the problem. G/L.

+1

808AWD325xi · 11-14-2007, 11:07 AM

Quote:

Originally Posted by sflgator

All of us guys just guessing about your car's problem is kind of pointless; just bring your car in for service and let them diagnose and fix the problem. G/L.

One can only assume that it's curiosity that drives these types of threads and not necessity.

Mike UK · 11-14-2007, 11:11 AM

It's that cat stuck in the wheel arch.

achien · 11-14-2007, 11:12 AM

the car is asking you to go to Starbucks and get half-a-pound for grinding...

Fraggy · 11-14-2007, 11:17 AM

Quote:

Originally Posted by sflgator

All of us guys just guessing about your car's problem is kind of pointless; just bring your car in for service and let them diagnose and fix the problem. G/L.

Naw seriously dude, Im no idiot. But my curiosity was if all trannys made this sound and its not unique to my car I wouldnt have to waste my time taking it in.

sflgator · 11-14-2007, 11:52 AM

Quote:

Originally Posted by Fraggy

Naw seriously dude, Im no idiot. But my curiosity was if all trannys made this sound and its not unique to my car I wouldnt have to waste my time taking it in.

I understand your curiosity, but do you really think all 335i's grind below 1,800rpm?

If my car were stock and it made some crazy grinding sound, I wouldn't be on here posting a thread about it; I'd be driving to my dealer's service dept. to drop it off and get a loaner car.

Now, if you have some mods, then I can understand why you'd want to post a thread, asking ppl if they might know what it could be.

Fraggy · 11-14-2007, 12:51 PM

I only have suspension mods at this point, so I should be ok at the dealer. I just dont have much free time to do it. My baby is set to arrive anytime between now and Saturday.

AndrewAZ · 11-14-2007, 02:10 PM

I made a post about this.. Have them check out your rear diff. I had to have mine replaced.

jerrym · 11-14-2007, 02:29 PM

... i assume its bad offset on your wheels .. and it rubs.. or maybe just bring it in to bmw.. listen to what others have to say!.

Fraggy · 11-14-2007, 04:01 PM

Quote:

Originally Posted by AndrewAZ

I made a post about this.. Have them check out your rear diff. I had to have mine replaced.

Thanks man, thats more along the lines of what I was looking for!!

11-14-2007, 09:43 AM	#1
Fraggy Brigadier General 193 Rep 3,469 Posts Drives: 2016 M3 Join Date: Jun 2005 Location: San Diego iTrader: (11)	Grinding sound from Step Tranny 335 E90 Frequently when accelerating or decelerating, from a stop up to about 1800 rpm and back down to stop, the transmission makes a slight grinding sound. Its loud enough that my 79 year old mom hears it and my wife as well. Both assumed it was a wheel or tire rubbing, but once above 1800 it stops, and when slowing down, once the transmission releases, the sound stops again. Any ideas? Anyone else had this? I dont remember it when the car was new but I might have missed it. Its seem a bit loud to be normal. __________________ 2016 Alpine White M3 (gone) 2019 Alfa Romeo Guilia (Totaled) 2020 Car-less 😁 (no more) 2020 M340
	Appreciate 0 Tweet Quote

11-14-2007, 09:46 AM	#2
sflgator Major General 148 Rep 5,389 Posts Drives: '09 MB C63 AMG & '08 MB GL450 Join Date: Oct 2006 Location: U.S. iTrader: (1)	All of us guys just guessing about your car's problem is kind of pointless; just bring your car in for service and let them diagnose and fix the problem. G/L. __________________ \|2009 RENNtech MB C63 AMG \| Black/Black Leather/Black Maple \| Premium II \| MultiMedia \| iPod \| \| TeleAid \| Charcoal Filter Delete \| BMC High-Flow Air Filters \| High-Flow Secondary Cats \| Clear Side Markers \|
	Appreciate 0 Quote

11-14-2007, 11:11 AM	#5
Mike UK Private First Class 7 Rep 196 Posts Drives: Le mans Blau e92 Join Date: Apr 2006 Location: UK iTrader: (0)	It's that cat stuck in the wheel arch.
	Appreciate 0 Quote

11-14-2007, 11:12 AM	#6
achien AC 95 Rep 2,387 Posts Drives: E90 Post Members Crazy Join Date: May 2007 Location: Toronto, Canada iTrader: (0)	the car is asking you to go to Starbucks and get half-a-pound for grinding... __________________ Your Supreme Leader
	Appreciate 0 Quote

11-14-2007, 12:51 PM	#9
Fraggy Brigadier General 193 Rep 3,469 Posts Drives: 2016 M3 Join Date: Jun 2005 Location: San Diego iTrader: (11)	I only have suspension mods at this point, so I should be ok at the dealer. I just dont have much free time to do it. My baby is set to arrive anytime between now and Saturday. __________________ 2016 Alpine White M3 (gone) 2019 Alfa Romeo Guilia (Totaled) 2020 Car-less 😁 (no more) 2020 M340
	Appreciate 0 Quote

11-14-2007, 02:10 PM	#10
AndrewAZ Major 137 Rep 1,243 Posts Drives: 335i Join Date: Jan 2007 Location: CA iTrader: (0)	I made a post about this.. Have them check out your rear diff. I had to have mine replaced.
	Appreciate 0 Quote

11-14-2007, 02:29 PM	#11
jerrym Second Lieutenant 7 Rep 278 Posts Drives: GT35R Pinto Join Date: Oct 2006 Location: Los Angeles iTrader: (0)	... i assume its bad offset on your wheels .. and it rubs.. or maybe just bring it in to bmw.. listen to what others have to say!. __________________ 14 Cayenne GTS 14 Carrera 4S 15 M3 ( ON ORDER )
	Appreciate 0 Quote