Transmission mount DIY for 3.0

[EODguy]

Originally Posted by Overboost

"Parts cannon bombardier "

What? That part looooooked guilty!

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[DriverX]

Originally Posted by KMan

I was having vibrations and a shimmy when accelerating uphill from 25-40mph, it felt as if it were pulsing. In the past I replaced my motor mounts as well while i was doing the oil pan gasket. So much easier to replace them with the subframe dropped down. Best of luck tracing down your vibrations!

Hi Kman, I am going to have a go at this this weekend. Did you have to remove/disassemble the exhaust at any stage? The instructions say to do so before taking off the crossmember, but if you were able to do so without taking off the exhaust I would like to know how.

Thank you!

[TheMagicWhizard]

Originally Posted by KMan

1. I purchased the tool from ebay but the seller is based out of China, so at the moment buying the same tool will be difficult due to the fear mongering of coronavirus.... cheapest I found was $160usd for a similar tool. https://www.ebay.com/itm/BMW-X5-Tran...ty!98230!US!-1

2. I did not remove the underbody reinforcement plate to drop the crossmember. Toughest part was removing the heat shield for the exhaust.... but it bends easy enough

Why not list it on eBay if you don't think you need it anymore, then I will go buy it cheaply. Win-win!

[DriverX]

Thanks to KMan for the excellent write-up I was able to do this today. I am a novice so it took me a while. Here are some notes:

Unbolting the exhaust hangar mount in the middle of the heat shield is necessary, and the trick I found was to spray a bit of silicone lubricate where the hangar pokes through the mount, then use towel or something with a bit of grip to pull it away from the car towards the outside and it will slide/pop off easily.

Use gloves (as always) but especially when working with the heat shield, as there are a few sharp edges.

When remounting the new mount, I used the 4 1/4 inch (smaller of the two) pegged semi-circular pieces from the kit into the "front" (back end of car) of the mount and the 3 3/4 inch "larger" rimmed circular piece from the kit on those other side (front end of car). If you follow KMan's writeup, the usage of the tool is actually pretty simple.

One word of caution, is as you are removing the mount using the tool, it's possible that it is really wedged in there good, and the rubber can begin to stretch more than the mount will come out. Towards the end of the limit of the special tool, I could see the rubber exiting the hole without us turning the bolt, so I knew there would be some recoil incoming. Just be careful at this stage, because it can shoot right out if you aren't prepared. Just make sure to watch the rubber in the hole as you are screwing and you can see how much tension load you are putting on it.

I also replaced the other parts shown in the parts diagram, such as the rubber stopper and the long bolt with nut - just for good measure.

Of course, my vibration at idle is still present. In P it is diminished, and in N it goes away for the most part. The real test will be when we get it to higher elevation and see if we still have the acceleration wobble (never happens around town at lower elevations, no matter what the speed or amount of acceleration).

Once again, thanks KMan for great DIY.

[dell2884]

Hey everyone
To the op Kmann who bought the tool
Do you still have the toolset for this job if you do could I buy it from you ?
Did you also replace your engine mounts also?

[2004bmwx53i]

Originally Posted by DriverX

Oooh if you get a chance to elaborate on the driveline vibrations I would be interested. I know my engine mounts are bad and intend on replacing them, that's why I was wondering about the reinforcement plate for the transmission mount or if the transmission mount can wait (thankfully for my wallet, it can). But I do get a unnerving vibration while cruising or accelerating around 60-70mph, but not all the time. I just attributed it to the engine mounts which will be replaced soon.

It's an old post, but trying my luck.
I'm trying to locate the transmission mounts on my 3i, would you guide me on this please. Thanks.

[wpoll]

Originally Posted by 2004bmwx53i

It's an old post, but trying my luck.
I'm trying to locate the transmission mounts on my 3i, would you guide me on this please. Thanks.

There are no actual transmission mounts - the entire engine/transmission/transfer case assmebly is supported byt two engine mounts and one transfer case mount.

https://www.realoem.com/bmw/enUS/par...W-X5_30i&mg=22

[2004bmwx53i]

Originally Posted by wpoll

There are no actual transmission mounts - the entire engine/transmission/transfer case assmebly is supported byt two engine mounts and one transfer case mount.

https://www.realoem.com/bmw/enUS/par...W-X5_30i&mg=22

Great response. Much appreciated.
P.S. Would you need a special tool for the transfer case mount removal/installation?

[wpoll]

Originally Posted by 2004bmwx53i

Great response. Much appreciated.
P.S. Would you need a special tool for the transfer case mount removal/installation?

Yep - there is a special tool for this job.



Have a read of this thread - it should answer all your questions!

https://xoutpost.com/bmw-sav-forums/...diy-3-0-a.html

[2004bmwx53i]

Originally Posted by wpoll

Yep - there is a special tool for this job.



Have a read of this thread - it should answer all your questions!

https://xoutpost.com/bmw-sav-forums/...diy-3-0-a.html

Great link thanks again. One more favor please, do you know of any link to do with replacing engine mounts for X5, and 3i specifically.