Check your non-oem Transmission Mounts

Blind32 · 09-06-2013, 10:57 AM

Hey guys.

I was prepping my car for this weekends track event and while crawling around under my car I noticed some funk on the passenger side transmission mount. I have the UUC Option 2 (DIY here http://www.zpost.com/forums/showthread.php?t=411452 ). The best way to describe it is orange slime. When I touched it, it was definitely some type of growth.

So I decided to pull them out and see what was up. Attached is what I found. The A/C drain line is right above the passenger Trans mount and with the crazy hot summers we have in Texas, all that condensation was being dumped on the mount causing it to erode away. I have put the OEM ones back on for now while I figure out what my plan is.

Also when I put the OEM ones back on, I noticed they had some rust presumably from that same A/C Drain. Here is a picture of what they used to look like new and my OEMs with the rust.

007MCoupe · 09-06-2013, 12:19 PM

I thought you used the caps? Or you did and this still happened?

either way man, sorry to see but good catch. love being part of a community of people who actually take the time to look over the car before track days.

What are you going to replace them with? Guess it's time to get on dat der engine mount upgrade too?

inTgr8r · 09-06-2013, 07:49 PM

Wow... Good catch!
I'm really surprised how they decomposed!

thekurgan · 09-06-2013, 08:18 PM

Quote:

Originally Posted by inTgr8r

Wow... Good catch!
I'm really surprised how they decomposed!

I've never had good luck with any of UUC's urethane products. The Rogue rubber mounts are just as good if not better than the urethane units.

StickMon · 09-06-2013, 11:37 PM

Wow. Who'da thunk it.

I hope the REs aren't "water soluble".

Beedub · 09-07-2013, 02:19 PM

shocking...

Finnegan · 09-07-2013, 05:30 PM

Good grief! Updating sticky.

I wonder if there was some kind of galvanic corrosion between the aluminum cradle, the bolt/nut? That would rot things out from the inside. Not my area of expertise though.

Kgolf31 · 09-07-2013, 05:56 PM

Typical UUC Product.

Those mounts have never held up

Beedub · 09-08-2013, 03:05 AM

so severe they need to refund the full price for this product and go back to the drawing board imo.... Utter fail!!

StickMon · 09-08-2013, 10:11 PM

Now I guess we need a mod to reroute the A/C condensation.

I checked my OEMs that came off. Tiny surface rust on one, but cosmetic only.
I'll be sure to check the REs next time I'm under there.
Been running the A/C a lot last 2 weeks.

seank · 09-08-2013, 10:19 PM

Quote:

Originally Posted by Beedub

so severe they need to refund the full price for this product and go back to the drawing board imo.... Utter fail!!

Hey Beedub, do you have a/c condensation on yours?

Blind32 · 09-09-2013, 09:55 AM

Well track day went great. Shifting felt much better after I put the OEM back in, looking forward to getting something stiffer in there. Thinking I didn't notice a change in the shifter feel because they gradually "dissolved" instead of just going out.

Quote:

Originally Posted by 007MCoupe

I thought you used the caps? Or you did and this still happened?

either way man, sorry to see but good catch. love being part of a community of people who actually take the time to look over the car before track days.

What are you going to replace them with? Guess it's time to get on dat der engine mount upgrade too?

No caps used. Probably going to go with the RE mounts and keep an eye on them. This issue might have been the reason I didn't notice any improvement after changing to the VB Engine mounts.

thelinux · 09-09-2013, 01:21 PM

Is the AC drain line looks like this?

I found that hose loose on top of transmission a while ago and am trying to figure out where it goes.

StickMon · 09-09-2013, 03:16 PM

Yep.
The big end goes to the box for the A/C evap coil.
Apparently the small end sits over the trans mount.

Next time I have the car up I'll see if I can find it and maybe add some extension hose to the small end.

thelinux · 09-09-2013, 06:22 PM

Quote:

Originally Posted by StickMon

Yep.
The big end goes to the box for the A/C evap coil.
Apparently the small end sits over the trans mount.

Next time I have the car up I'll see if I can find it and maybe add some extension hose to the small end.

Thank you! thank you! thank you!
How do I put back that hose? That was the only part I found. Do I need any other ring or something? How do I make it to stay?

Also could you describe how I can access it? Do I have to drop the transmission to put it back? Where is it located exactly? Would you take some pics for me if possible?

Thanks a ton!

JeffchaPz · 09-09-2013, 06:41 PM

Gents... I have RE urethane trans...> mounts and AKG motor mounts and they look like new 15 months after being installed.

OP - try AKG products.... they are cheaper and they seem to be pretty good so far.

Plus they are made in the good old USA!

Good luck.

gmbbs · 09-09-2013, 07:00 PM

Coincidentally I was under my car this weekend, and found my red trans mounts have done the same exact thing, just the right side mount, which is the one the A/C hose drains onto. I need to research alternate trans mounts, and I'm going to extend the drain hose down below the trans mount level.

Funny that Blind32 and I are both in Dallas...

StickMon · 09-09-2013, 08:06 PM

Quote:

Originally Posted by thelinux

Thank you! thank you! thank you!
How do I put back that hose? That was the only part I found. Do I need any other ring or something? How do I make it to stay?

Also could you describe how I can access it? Do I have to drop the transmission to put it back? Where is it located exactly? Would you take some pics for me if possible?

Thanks a ton!

I have absolutely no idea. We had this conversation before.
All I know is it has to catch water coming out of part #1 here.

Follow the A/C lines from the compressor to somewhere under the passenger compartment to find where #1 lives.
Apparently it's above the right side trans mount.

thelinux · 09-10-2013, 11:08 AM

Quote:

Originally Posted by StickMon

I have absolutely no idea. We had this conversation before.
All I know is it has to catch water coming out of part #1 here.

Follow the A/C lines from the compressor to somewhere under the passenger compartment to find where #1 lives.
Apparently it's above the right side trans mount.

That's the thread I started.

So is that mean I have to drop the transmission? That's bad new. :-(
How do you drop the transmission? How hard is it? Is it worth to drop the transmission to re-connect this hose?

StickMon · 09-10-2013, 01:01 PM

I think I'll put my car up on the stands and inspect the mounts and A/C drain this weekend.
I put RE mounts on about a month ago, and it's been a hot month.
Better check and make sure I don't have the same thing going on.
I'll try and find that drain hose and get some pictures, and maybe come up with a mod to drain it past the mounts.

thekurgan · 09-10-2013, 01:29 PM

Quote:

Originally Posted by gmbbs

Coincidentally I was under my car this weekend, and found my red trans mounts have done the same exact thing, just the right side mount, which is the one the A/C hose drains onto. I need to research alternate trans mounts, and I'm going to extend the drain hose down below the trans mount level.

Funny that Blind32 and I are both in Dallas...

Stick with rubber, RE mounts are more than beefy enough.

inTgr8r · 09-10-2013, 01:39 PM

Quote:

Originally Posted by gmbbs

Coincidentally I was under my car this weekend, and found my red trans mounts have done the same exact thing, just the right side mount, which is the one the A/C hose drains onto. I need to research alternate trans mounts, and I'm going to extend the drain hose down below the trans mount level.

Funny that Blind32 and I are both in Dallas...

...there we have it! The root cause

09-06-2013, 10:57 AM	#1
Blind32 Certified Adrenaline Junkie 41 Rep 1,325 Posts Drives: '07 Z4MC Join Date: Sep 2009 Location: Dallas TX iTrader: (2)	Check your non-oem Transmission Mounts Hey guys. I was prepping my car for this weekends track event and while crawling around under my car I noticed some funk on the passenger side transmission mount. I have the UUC Option 2 (DIY here http://www.zpost.com/forums/showthread.php?t=411452 ). The best way to describe it is orange slime. When I touched it, it was definitely some type of growth. So I decided to pull them out and see what was up. Attached is what I found. The A/C drain line is right above the passenger Trans mount and with the crazy hot summers we have in Texas, all that condensation was being dumped on the mount causing it to erode away. I have put the OEM ones back on for now while I figure out what my plan is. Also when I put the OEM ones back on, I noticed they had some rust presumably from that same A/C Drain. Here is a picture of what they used to look like new and my OEMs with the rust. Attached Images
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09-06-2013, 12:19 PM	#2
007MCoupe Lieutenant Colonel 94 Rep 1,546 Posts Drives: '18 Sakhir M3 ZCP Join Date: Jun 2010 Location: ( ///// ) iTrader: (5)	I thought you used the caps? Or you did and this still happened? either way man, sorry to see but good catch. love being part of a community of people who actually take the time to look over the car before track days. What are you going to replace them with? Guess it's time to get on dat der engine mount upgrade too? __________________ Become a ///Member!
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09-06-2013, 07:49 PM	#3
inTgr8r Lieutenant General 2426 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Wow... Good catch! I'm really surprised how they decomposed! __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
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09-06-2013, 11:37 PM	#5
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	Wow. Who'da thunk it. I hope the REs aren't "water soluble". __________________ Warning: May contain traces of nuts.
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09-07-2013, 02:19 PM	#6
Beedub Major General 423 Rep 5,327 Posts Drives: 2007 Z4 M roadster vt2-500 Join Date: Sep 2007 Location: UK iTrader: (0)	shocking... __________________ Z4MR VT2 - Clubsport build. Multi award winning Detailing \| Wrap \| PPF specialists UK based - www.topwrapz.com
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09-07-2013, 05:30 PM	#7
Finnegan Dog Listener 701 Rep 7,850 Posts Drives: Z4M/. Z3M, E36/46 M3 Join Date: Oct 2008 Location: Teaching the dog to slalom iTrader: (22)	Good grief! Updating sticky. I wonder if there was some kind of galvanic corrosion between the aluminum cradle, the bolt/nut? That would rot things out from the inside. Not my area of expertise though. Last edited by Finnegan; 09-07-2013 at 05:37 PM..
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09-07-2013, 05:56 PM	#8
Kgolf31 Brigadier General 459 Rep 4,531 Posts Drives: 2007 Z4MC, 2012 128i Join Date: Sep 2008 Location: Ohio iTrader: (4)	Typical UUC Product. Those mounts have never held up
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09-08-2013, 03:05 AM	#9
Beedub Major General 423 Rep 5,327 Posts Drives: 2007 Z4 M roadster vt2-500 Join Date: Sep 2007 Location: UK iTrader: (0)	so severe they need to refund the full price for this product and go back to the drawing board imo.... Utter fail!! __________________ Z4MR VT2 - Clubsport build. Multi award winning Detailing \| Wrap \| PPF specialists UK based - www.topwrapz.com
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09-08-2013, 10:11 PM	#10
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	Now I guess we need a mod to reroute the A/C condensation. I checked my OEMs that came off. Tiny surface rust on one, but cosmetic only. I'll be sure to check the REs next time I'm under there. Been running the A/C a lot last 2 weeks. __________________ Warning: May contain traces of nuts.
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09-09-2013, 01:21 PM	#13
thelinux Private First Class 14 Rep 155 Posts Drives: 2008 Z4 3si Join Date: Feb 2013 Location: Irvine, CA iTrader: (0)	Is the AC drain line looks like this? I found that hose loose on top of transmission a while ago and am trying to figure out where it goes.
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09-09-2013, 03:16 PM	#14
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	Yep. The big end goes to the box for the A/C evap coil. Apparently the small end sits over the trans mount. Next time I have the car up I'll see if I can find it and maybe add some extension hose to the small end. __________________ Warning: May contain traces of nuts.
	Appreciate 0 Quote

09-09-2013, 06:41 PM	#16
JeffchaPz Second Lieutenant 17 Rep 251 Posts Drives: 2007 Z4M Join Date: Sep 2011 Location: Austin, TX iTrader: (0)	Gents... I have RE urethane trans...> mounts and AKG motor mounts and they look like new 15 months after being installed. OP - try AKG products.... they are cheaper and they seem to be pretty good so far. Plus they are made in the good old USA! Good luck.
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09-09-2013, 07:00 PM	#17
gmbbs Private 18 Rep 86 Posts Drives: TBD Join Date: Jun 2011 Location: DFW iTrader: (3)	Coincidentally I was under my car this weekend, and found my red trans mounts have done the same exact thing, just the right side mount, which is the one the A/C hose drains onto. I need to research alternate trans mounts, and I'm going to extend the drain hose down below the trans mount level. Funny that Blind32 and I are both in Dallas...
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09-10-2013, 01:01 PM	#20
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	I think I'll put my car up on the stands and inspect the mounts and A/C drain this weekend. I put RE mounts on about a month ago, and it's been a hot month. Better check and make sure I don't have the same thing going on. I'll try and find that drain hose and get some pictures, and maybe come up with a mod to drain it past the mounts. __________________ Warning: May contain traces of nuts.
	Appreciate 0 Quote