RWD 6MT 328i Metallic Sound?

dspence44 · 10-03-2016, 04:55 PM

Hey guys!

I'm noticing a sound when I am driving my 328i 6MT that makes me question whether or not it's normal or if it is something that is slowing failing/breaking... It's a tough sound to describe, but I'll try my best! If nothing else, I will see if I can record it and if the sound is picked up on video.

But essentially, I am hearing a metallic clunking (this is the best description that I can find in my vocabulary... Haha) sound that comes from the rear of the car when I put it in gear and slowly start moving (either in 1st gear or Reverse). As far as I know, it only happens when I am starting to roll from a complete stop, or when I am moving slowly and apply the throttle followed by letting it off.

Is anyone familiar with what I am referring to? I'm sure it could be completely normal for a 6MT RWD, but I would rather be safe than sorry!

I would appreciate any input! And if everyone is still confused I can try to record the sound on video!

avocet · 10-03-2016, 10:03 PM

Just one 'click'?

I had that and input flange on diff needed the splines lubed. Some hace used loctite but high pressure syn grease solved my issues...

dspence44 · 10-03-2016, 11:07 PM

Quote:

Originally Posted by avocet

Just one 'click'?

I had that and input flange on diff needed the splines lubed. Some hace used loctite but high pressure syn grease solved my issues...

Yes! A 'click' is a great way to describe it! So how would I go about greasing this? Is there a nipple somewhere that I can grease it through? Could you give me some steps so that I can get this job done?

tlow98 · 10-04-2016, 12:46 AM

Could also be the brakes missing a spring clip. Easy to look through the rims.

dspence44 · 10-04-2016, 12:57 AM

Quote:

Originally Posted by tlow98

Could also be the brakes missing a spring clip. Easy to look through the rims.

I'll take a peek in the AM! Thanks!

nuron · 10-08-2016, 12:42 AM

check this thread:

http://www.e90post.com/forums/showthread.php?t=175885

avocet, how hard was the removal of the drive shaft?

avocet · 10-08-2016, 03:54 PM

Quote:

Originally Posted by dspence44

Yes! A 'click' is a great way to describe it! So how would I go about greasing this? Is there a nipple somewhere that I can grease it through? Could you give me some steps so that I can get this job done?

Quote:

Originally Posted by nuron

check this thread:

http://www.e90post.com/forums/showthread.php?t=175885

avocet, how hard was the removal of the drive shaft?

I was able to get the aft end of the shaft unfastened and pushed over to the side with a bit of elbow grease... I didn't remove the heat shielding but undid a few fasteners and bent/folded it over to the side(not too much to avoid permanent damage to it).

As for the flange, I am pretty sure an air impact wrench will be required, and precautions are required to retorque it(some people(myself included) will scribe the nut and flange to position the nut where it was) because there is usually a crush washer in there.

I did this quite some time ago, and it silenced my diff for the next 40-50k kms until i swapped it out.

nuron · 10-08-2016, 04:35 PM

thanks for the details. i think i'll try tackling this in the spring time.

10-03-2016, 04:55 PM	#1
dspence44 Lieutenant 75 Rep 503 Posts Drives: '07 E92 328i 6MT Join Date: May 2016 Location: Alberta iTrader: (1)	RWD 6MT 328i Metallic Sound? Hey guys! I'm noticing a sound when I am driving my 328i 6MT that makes me question whether or not it's normal or if it is something that is slowing failing/breaking... It's a tough sound to describe, but I'll try my best! If nothing else, I will see if I can record it and if the sound is picked up on video. But essentially, I am hearing a metallic clunking (this is the best description that I can find in my vocabulary... Haha) sound that comes from the rear of the car when I put it in gear and slowly start moving (either in 1st gear or Reverse). As far as I know, it only happens when I am starting to roll from a complete stop, or when I am moving slowly and apply the throttle followed by letting it off. Is anyone familiar with what I am referring to? I'm sure it could be completely normal for a 6MT RWD, but I would rather be safe than sorry! I would appreciate any input! And if everyone is still confused I can try to record the sound on video! __________________ // 328i E92 // N52 // Muffler Delete // K&N Drop In // Charcoal Delete // RGBW LED Halos
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10-03-2016, 10:03 PM	#2
avocet Major 252 Rep 1,157 Posts Drives: 2007 328i 2011 X5d Join Date: Sep 2010 Location: Vancouver bc iTrader: (0)	Just one 'click'? I had that and input flange on diff needed the splines lubed. Some hace used loctite but high pressure syn grease solved my issues...
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10-04-2016, 12:46 AM	#4
tlow98 Major General 2188 Rep 5,002 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	Could also be the brakes missing a spring clip. Easy to look through the rims.
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10-08-2016, 12:42 AM	#6
nuron Private First Class 80 Rep 199 Posts Drives: '07 328i Join Date: Jul 2016 Location: Washington iTrader: (0)	check this thread: http://www.e90post.com/forums/showthread.php?t=175885 avocet, how hard was the removal of the drive shaft?
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10-08-2016, 04:35 PM	#8
nuron Private First Class 80 Rep 199 Posts Drives: '07 328i Join Date: Jul 2016 Location: Washington iTrader: (0)	thanks for the details. i think i'll try tackling this in the spring time.
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