DIY: Transmission mount

WingZeroX5 · 05-21-2016, 02:11 PM

This DIY is very easy!

Parts needed:
22312283285 - Transmission mounts (2)
8mm socket (1/4in dr)
10mm socket (long, 1/4in dr)
13mm socket (long or short, 3/8in dr)
3" extension (optional)
13" box wrench - for removing the nut securing the mount

FLOOR JACKS!

Jack the front of your car. I have two 3-ton Harbor Freight jacks. Since the enter lift point is too low, I jacked up one side, then slid the other jack under the center jack point. Use jack stands to support after having about 3ft clearance under the car.

Next, remove the felt transmission cover. Use 8mm socket for the front 3 bolts and side nut caps. Use 10mm for the rear two that secures the transmission cover to the bracket. Put this aside.

SUPPORT THE TRANSMISSION! I used my second floor jack with a hockey puck to support the transmission (Reference the RED CIRCLE in the pic). Jacked it up so that it is JUST ENOUGH PRESSURE. Do not jack up the transmission!

The transmission is now exposed. I used the 13mm socket to loosen the bracket bolts, there are FOUR of them. Don't take them out yet.

Take the 13mm box wrench and remove the two nuts securing the mount.

Now, wiggle the bracket until it is loose, then remove the 4 13mm bolts. The bracket should now be easily removed.
*Tip* - Remove the 10mm nuts securing the mounts to the transmission bracket to make things slightly easier prior to removing the bracket from the car. If not, you will either have to use a vice or something to keep the bracket from spinning as you try to remove the nuts

Replace your mounts with the new ones you just bought. Reinstall everything in reverse order.

That's it! Crack open a beverage of choice or light up a cigar

RoundelObsession · 05-21-2016, 04:57 PM

Excellent post, Valuable members like you are becoming more and more rare. Thank You for taking your time to post this.

CIFUM3 · 05-21-2016, 06:42 PM

Awesome DIY bro...
Those mounts are they OEM? If they are may I ask why you didn't upgrade to a stiffer mount?

WingZeroX5 · 05-21-2016, 07:56 PM

Quote:

Originally Posted by CIFUM3

Awesome DIY bro...
Those mounts are they OEM? If they are may I ask why you didn't upgrade to a stiffer mount?

I used OEM mounts. I didn't want to risk NVH and want to maintain the original quality. Plus, I don't track my vehicle so I didn't see the benefits of a stiffer mount.

Agent-GHQ · 05-21-2016, 07:58 PM

What exactly was the issue? Symptoms?

WingZeroX5 · 05-21-2016, 08:27 PM

Quote:

Originally Posted by Agent-GHQ

What exactly was the issue? Symptoms?

No symptoms, just part of my 100k maintenance. I replaced my engine mounts which were completely obliterated. For $50 bucks, I probably bought another 100k.

Probably less clunking now after driving in traffic today.

Gossypiboma · 05-21-2016, 09:17 PM

Nice write up.

Your original mounts look completely fine but damn is that salty environment taking a toll.

WingZeroX5 · 05-21-2016, 09:34 PM

Quote:

Originally Posted by BigBoosting

Nice write up.

Your original mounts look completely fine but damn is that salty environment taking a toll.

Snowy northeast for ya

X5-User · 05-23-2016, 05:40 PM

Your mounts looks good to me. How many miles on them?

I would imagine Engine mounts takes gets beaten more than transmission mounts

WingZeroX5 · 05-23-2016, 05:46 PM

Quote:

Originally Posted by Bimmer-M3

Your mounts looks good to me. How many miles on them?

I would imagine Engine mounts takes gets beaten more than transmission mounts

100k. You should see my motor mounts in my other thread lmao

Richbot · 01-24-2017, 10:52 AM

Pro tip: Don't overtorque the M8 bolts that mount to the unibody. Had to use an easy-out when one snapped at what couldn't have been more than 30nM on my torque wrench, it never clicked just kept turning till it snapped the sucker off. God willing at 180k I will change these again and will have bolts on-hand before I start next time...

Also, my mounts at 90k, while better looking than the engine mounts, were showing wear/cracking at the tabs that capture the cross brace and limit movement of the mounts and by extension, the transmission, so it's a great while you're in there for motor mounts

If you don't ape a bolt and have to order new ones, this job takes under half an hour start to finish

brettcp · 11-05-2019, 05:53 PM

Just did this today, super easy (especially with a quickjack). I had 105k miles on my original mounts. Haven't driven the car enough to tell a difference yet, but the old ones were definitely softer than the new ones (OEM BMW) I put in. Thanks for this DIY.

05-21-2016, 02:11 PM	#1
WingZeroX5 Colonel 765 Rep 2,361 Posts Drives: F80 / F30 Join Date: Mar 2010 Location: New Hampshire iTrader: (14)	This DIY is very easy! Parts needed: 22312283285 - Transmission mounts (2) 8mm socket (1/4in dr) 10mm socket (long, 1/4in dr) 13mm socket (long or short, 3/8in dr) 3" extension (optional) 13" box wrench - for removing the nut securing the mount FLOOR JACKS! Jack the front of your car. I have two 3-ton Harbor Freight jacks. Since the enter lift point is too low, I jacked up one side, then slid the other jack under the center jack point. Use jack stands to support after having about 3ft clearance under the car. Next, remove the felt transmission cover. Use 8mm socket for the front 3 bolts and side nut caps. Use 10mm for the rear two that secures the transmission cover to the bracket. Put this aside. SUPPORT THE TRANSMISSION! I used my second floor jack with a hockey puck to support the transmission (Reference the RED CIRCLE in the pic). Jacked it up so that it is JUST ENOUGH PRESSURE. Do not jack up the transmission! The transmission is now exposed. I used the 13mm socket to loosen the bracket bolts, there are FOUR of them. Don't take them out yet. Take the 13mm box wrench and remove the two nuts securing the mount. Now, wiggle the bracket until it is loose, then remove the 4 13mm bolts. The bracket should now be easily removed. Tip - Remove the 10mm nuts securing the mounts to the transmission bracket to make things slightly easier prior to removing the bracket from the car. If not, you will either have to use a vice or something to keep the bracket from spinning as you try to remove the nuts Replace your mounts with the new ones you just bought. Reinstall everything in reverse order. That's it! Crack open a beverage of choice or light up a cigar Attached Images
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05-21-2016, 04:57 PM	#2
RoundelObsession Banned 256 Rep 1,174 Posts Drives: S65M3 Join Date: Feb 2016 Location: Texas iTrader: (39)	Excellent post, Valuable members like you are becoming more and more rare. Thank You for taking your time to post this.
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05-21-2016, 06:42 PM	#3
CIFUM3 Captain 103 Rep 999 Posts Drives: 08 E92 M3 Join Date: Jul 2013 Location: Goodyear iTrader: (0)	Awesome DIY bro... Those mounts are they OEM? If they are may I ask why you didn't upgrade to a stiffer mount? __________________ Performance ESS 625 VT2 Supercharger - CAE Shifter - Revinora race+ axle back - Macht Schnell down pipes - SOSI X-pipe Looks M colors grill - CF trunk - Sapphire Blue Forgestars F14
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05-21-2016, 07:58 PM	#5
Agent-GHQ Captain 107 Rep 837 Posts Drives: '13 AW ///M3 E92 MT Comp Pkg Join Date: Jul 2009 Location: San Diego, CA iTrader: (0)	What exactly was the issue? Symptoms?
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05-21-2016, 09:17 PM	#7
Gossypiboma Major 542 Rep 1,195 Posts Drives: 13' M3 6MT 18' M3 CS Join Date: Aug 2012 Location: The John iTrader: (8)	Nice write up. Your original mounts look completely fine but damn is that salty environment taking a toll. __________________
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05-23-2016, 05:40 PM	#9
X5-User Lieutenant Colonel 188 Rep 1,755 Posts Drives: X5 35d Join Date: Aug 2013 Location: VA iTrader: (2)	Your mounts looks good to me. How many miles on them? I would imagine Engine mounts takes gets beaten more than transmission mounts
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01-24-2017, 10:52 AM	#11
Richbot Major General 2759 Rep 5,484 Posts Drives: Jerez Black E90 Join Date: Sep 2007 Location: STL iTrader: (5)	Pro tip: Don't overtorque the M8 bolts that mount to the unibody. Had to use an easy-out when one snapped at what couldn't have been more than 30nM on my torque wrench, it never clicked just kept turning till it snapped the sucker off. God willing at 180k I will change these again and will have bolts on-hand before I start next time... Also, my mounts at 90k, while better looking than the engine mounts, were showing wear/cracking at the tabs that capture the cross brace and limit movement of the mounts and by extension, the transmission, so it's a great while you're in there for motor mounts If you don't ape a bolt and have to order new ones, this job takes under half an hour start to finish __________________
	Appreciate 0 Quote

11-05-2019, 05:53 PM	#12
brettcp Captain 348 Rep 702 Posts Drives: 2012 E93 M3 Join Date: Mar 2011 Location: So Cal iTrader: (2)	Just did this today, super easy (especially with a quickjack). I had 105k miles on my original mounts. Haven't driven the car enough to tell a difference yet, but the old ones were definitely softer than the new ones (OEM BMW) I put in. Thanks for this DIY.
	Appreciate 1 WingZeroX5764.50 Quote