LONMON Posted March 8, 2019 Share Posted March 8, 2019 Just a little info on install of the CPE rear mount for any of you that are looking for more performance. Once you have tuned the car you will notice that there is considerable movement of the engine when accelerating hard and some wheel hop from the front wheels. The CPE mount upgrade for the lower rear dogbone style mount helps a good bit with that excessive engine movement. I will also say that it adds a fair amount of vibration that you can feel in the steering wheel, your feet, and butt. Its not that bad when above idle (noticeable but very livable) but at idle when stopped it is a bit excessive. Especially for a nice luxury car. The easiest way to make this upgrade less annoying is to have the tune adjusted to raise the idle 200 rpm. The stock idle warmed up in drive is about 600-700 rpm. By adding 200 rpm in the tune is sits about 800-900 rpm and takes almost all of the excessive vibration out of the steering wheel. Now I can drive the car every day and after a little break in and getting used to it I barely notice it anymore. The car responds much better to quick and hard throttle inputs and also wheel hops much less when hammering it from a stop. Another issue I had was during the install. It should have been very easy with only 2 bolts to remove to replace it. However, when I went to remove the main subframe bolt (the 21mm pointed toward the ground) it did not want to budge. I had already taken the other bolt out to release the tension from the mount but the main bolt would not loosen with an impact gun. Even using special inertia sockets to give it extra oomph. I finally had to use a very large breaker bar and it ended up snapping off inside the mount. I then spent an hour air hammering the mount out of the way, heating the subframe around the broken off bolt, and extracting it with an extractor socket. I then found a suitable replacement bolt and could install the CPE mount. Just wanted to give people a heads up about this possible issue since I expected it to be much easier and straight forward. I am a tech with my own shop and have installed countless mounts like this with no issue like this before. So if you go to install this mount and have trouble getting that main bolt out, make sure you are ready to deal with this before continuing so you are not stuck with a disabled vehicle. Good luck and hope that more of us are modding this luxury car with such awesome potential! I personally have plans on moving on to lighter wheels, an intercooler upgrade, and some down pipes at some point in the future! Quote Link to comment Share on other sites More sharing options...
Zalvern Posted March 9, 2019 Share Posted March 9, 2019 Yes, that main subframe bolt was the most challenging part to make an otherwise, easy part change more difficult. I ended up taking mine to shop to finish the install with darkstar's engine mount. The mechanics ended up using the breaker bar because the impact gun was failing to make it even budge without strong arming it. Bolt did not break or anything though. I don't know how different the CPE mount is per say, but with darkstar's engine mount I did not feel the need to adjust the idle rpm as the vibration increase was really sutble. You had to concentrate on the steering wheel just to feel it. It was a great piece to reduce some wheel hop. Never did get to try the transmission mount which should of taking it to the next stage. Given how challenging that bolt was, I did not bother to retrieve the engine mount after my MKZ was totaled. I just let it go. Quote Link to comment Share on other sites More sharing options...
DeviLSh Posted March 19, 2019 Share Posted March 19, 2019 I also had an issue getting the 21mm bolt out. Used a 4ft breaker bar and a buddy on each side of the car to "row" the bar while I placed upward pressure on the socket to prevent slipping. We also shielded the area above the subframe and used some heat to loosen the oem loctite. Thankfully, mine broke free and didn't snap like the OP. Good to know of the idle raise. I found the car to be fine, except at idle and have since removed my mount. I might reinstall though and try to get a custom tune for the car in the future to mitigate this. (I am a 3.7 though!) Quote Link to comment Share on other sites More sharing options...
LONMON Posted March 20, 2019 Author Share Posted March 20, 2019 The slight idle raise has made mine 100% liveable. I am totally used to the mount at this time. No shake at all with the idle up just a couple hundred rpm. Quote Link to comment Share on other sites More sharing options...
N0P0WER Posted August 17, 2019 Share Posted August 17, 2019 I just did the CP-E mount, and yes the rear bolt was an utter pain in the ass. On my 2017 (33k miles) I had to torque on it so hard with a 3'+ breaker that I was convinced I was about to snap the bolt off. Now, granted, with a torque spec of 129ft/lbs and the Loctite Blue the factory added, it all makes sense ... but still ... Quote Link to comment Share on other sites More sharing options...
N0P0WER Posted August 17, 2019 Share Posted August 17, 2019 Quote Link to comment Share on other sites More sharing options...
N0P0WER Posted August 17, 2019 Share Posted August 17, 2019 (edited) VID_20190816_170613.mp4 Fitting the washers above and below the CP-E rear motor mount was a good time too. Edited August 17, 2019 by N0P0WER LONMON 1 Quote Link to comment Share on other sites More sharing options...
DeviLSh Posted March 25, 2020 Share Posted March 25, 2020 (edited) Anyone have the part # for this bolt? Want to buy a spare before I attempt this install on my 2017! EDIT: W715622-S439 M14x119mm ? Edited March 26, 2020 by DeviLSh Quote Link to comment Share on other sites More sharing options...
R2D2 Posted March 26, 2020 Share Posted March 26, 2020 7 hours ago, DeviLSh said: Anyone have the part # for this bolt? Want to buy a spare before I attempt this install on my 2017! EDIT: W715622-S439 M14x119mm ? Isn't that the part number? W715622-S439 https://www.oemfordpart.com/oem-parts/ford-torque-arm-bolt-w715622s439 Quote Link to comment Share on other sites More sharing options...
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