Motor Mount Replacement

astrotj · 10-25-2017, 06:24 PM

335d - 2009. I have a noise when accelerating in left hand turns. Almost sounds like a making a strange sound (almost like metal to metal). I had the car in for a front brake job and oil change and thought maybe the wheel was loose or something. It's only left turns. Now the dealer says it is the motor mount. Can't understand though why a motor mount would cause that sound!

peteyypab · 10-25-2017, 08:04 PM

Quote:

Originally Posted by astrotj

335d - 2009. I have a noise when accelerating in left hand turns. Almost sounds like a making a strange sound (almost like metal to metal). I had the car in for a front brake job and oil change and thought maybe the wheel was loose or something. It's only left turns. Now the dealer says it is the motor mount. Can't understand though why a motor mount would cause that sound!

Take a look at post#16 and take a look at your passenger side motor mount... you will find that it looks the same as the picture. what you are hearing is the metal on metal contact of the collapsed motor mount.

Dr Diesel · 10-28-2017, 10:42 AM

Does anyone have the correct oem part number for our vacuum controlled mounts? specifically the passenger side one.

peteyypab · 10-28-2017, 12:34 PM

Quote:

Originally Posted by Dr Diesel

Does anyone have the correct oem part number for our vacuum controlled mounts? specifically the passenger side one.

Passenger side for us (right)
22 11 6 786 696

See http://bmwfans.info/parts-catalog/E9...ne_suspension/

Ohiodiesel · 04-10-2018, 11:35 PM

Quote:

Originally Posted by BB_cuda

Maybe just me but wondering what that passenger mount would act like if the vacuum line were temporarily disconnected. This would simulate a very large crack inside the mount. I'm wondering what to look for when the mount goes bad at ~80,000 miles.

Food for thought. A higher torque engine is going to wear out mounts quicker. Anyone with a big block muscle car has had to deal with this. Aftermarket designed torque straps to help take the load off of the OEM mount are offered. Not suggesting that addition here. I wonder if a Ford/Chevy/Dodge motor mount on a diesel is substantially for stout than on the gasoline burning equivalent. Sort of wondering if the M57 mount is more substantial than the N54/N55 gasser mounts.

Ive been thinking as the 335D gets more and more powerful on going ahead and replacing the OEM mounts with the 034 Motorsport N54 solid rubber upgrade performance mounts they offer. They are exactly the same minus the fact that ours have another bolt on the side of the mount for extra support it looks like. Know if this would work and be better/stiffer? Obviously you couldn't use the extra side mount bolt with them since they don't have it on the N54.

Ohiodiesel · 04-10-2018, 11:38 PM

Here's the illustration for our OEM mounts with #10 being the side mount bolt and brace. Im even wondering if I might be able to cut the side bolt mount off to TIG weld it to the new mount if needed.

Yozh · 04-11-2018, 12:36 AM

Would run with more nvh at idle and coasting below 60kph.

Ohiodiesel · 04-11-2018, 12:48 AM

Quote:

Originally Posted by Yozh

Would run with more nvh at idle and coasting below 60kph.

I'm not at all worried about that as much - already have Poly subframe, diff, etc. mounts. Do you have upgraded N54 Engine mounts?

Yozh · 04-11-2018, 10:34 AM

I do not know of anyone running aftermarket mounts. Be nice to get rid of another failure point but wonder what nvh would be. I do not have them.

Torqu3 · 04-12-2018, 08:16 AM

Quote:

Originally Posted by Ohiodiesel

I'm not at all worried about that as much - already have Poly subframe, diff, etc. mounts. Do you have upgraded N54 Engine mounts?

According to ECS Tuning you can run 335is mounts. I wouldn't, just because of how much a diesel engine shakes. I want that dampened. Not to feel it.

Asonchadwick · 04-13-2018, 12:14 PM

Fcp euro now carrying our mounts. Glad i asked them to add them hehe. price is 110 each i believe.

Mark M · 04-13-2018, 06:59 PM

Quote:

Originally Posted by Asonchadwick

Fcp euro now carrying our mounts. Glad i asked them to add them hehe. price is 110 each i believe.

Great work. Thanks. Fcp is my preferred vendor by far!!!!

Asonchadwick · 04-14-2018, 02:27 AM

Quote:

Originally Posted by Mark M

Great work. Thanks. Fcp is my preferred vendor by far!!!!

Heck ya! I do not know if my mounts are bad or going bad, however when i floor it to me it sounds as if something is making like a groaning or droning noise but it goes away when i lift off and its never heard normally. Weak or bad mount?

SamBMW5Series · 12-10-2018, 03:24 PM

Hi , Even I am looking for information on Engine Mounts Replacement will cover under the certified pre-owned warranty or not. I went to the dealership and they checked my car and said mounts need to change and it wll not cover in CPO. Dose anyone got the Mounts covered in CPO. Even I have my maintenance plan as well untill 2020. for this work estimated cost is 1600$ for BMW 2014 5 Series :-(

Owen81 · 12-10-2018, 09:44 PM

Usually motor mounts are a wear item and would not be covered under warranty, but your mounts are only ~$110 each. I have never worked on an N20 but that seems like way too much labor to replace the mounts

335dlci · 12-11-2018, 01:09 AM

Quote:

Originally Posted by Owen81

Usually motor mounts are a wear item and would not be covered under warranty, but your mounts are only ~$110 each. I have never worked on an N20 but that seems like way too much labor to replace the mounts

Who said n20?

Owen81 · 12-11-2018, 02:37 AM

He said 2014 5 Series and his profile says he has a 528i XDrive. So N20?

RED-d · 12-11-2018, 05:04 AM

Just reading this resurrected post for the first time and wanted to mention that I just did my mounts. My passenger side "side" bolt was all the way out and laying on the bracket. The drivers side "side" bolt was backed over half-way out. I had no noticeable vibration difference after new mount install. I didn't replace because of any symptoms. Just mileage at 140k and no indication they had previously been replaced.

335dlci · 12-11-2018, 08:44 AM

Quote:

Originally Posted by Owen81

He said 2014 5 Series and his profile says he has a 528i XDrive. So N20?

Oh i didnt dig that far into his profile, stalker Haha. Yeah you're right. Hes in the wrong forum. N20 well even just gasoline engines arent like these m/n57.

335dlci · 12-11-2018, 08:45 AM

Quote:

Originally Posted by SamBMW5Series

Hi , Even I am looking for information on Engine Mounts Replacement will cover under the certified pre-owned warranty or not. I went to the dealership and they checked my car and said mounts need to change and it wll not cover in CPO. Dose anyone got the Mounts covered in CPO. Even I have my maintenance plan as well untill 2020. for this work estimated cost is 1600$ for BMW 2014 5 Series :-(

As one that has worked many years at the dealer. Under cpo warranty, wear and tear items such as brakes, tires, etc. There are certain components that they consider wear and term.

335dlci · 12-11-2018, 08:47 AM

Also new car and cpo warranty coverage has changed over the years

10-25-2017, 06:24 PM	#45
astrotj New Member 2 Rep 16 Posts Drives: 335d Join Date: Jan 2012 Location: maryland iTrader: (0)	Motor Mount Replacement 335d - 2009. I have a noise when accelerating in left hand turns. Almost sounds like a making a strange sound (almost like metal to metal). I had the car in for a front brake job and oil change and thought maybe the wheel was loose or something. It's only left turns. Now the dealer says it is the motor mount. Can't understand though why a motor mount would cause that sound!
	Appreciate 0 Quote

10-28-2017, 10:42 AM	#47
Dr Diesel Registered 0 Rep 4 Posts Drives: 2009 335d Join Date: Jan 2014 Location: Ft Lauderdale iTrader: (0)	Does anyone have the correct oem part number for our vacuum controlled mounts? specifically the passenger side one.
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04-10-2018, 11:38 PM	#50
Ohiodiesel Mens Sana In Corpore Sano 7 Rep 39 Posts Drives: E90 335D-F15 X5 35D-Mk6 TDI Join Date: Oct 2016 Location: Cincinnati iTrader: (0)	Here's the illustration for our OEM mounts with #10 being the side mount bolt and brace. Im even wondering if I might be able to cut the side bolt mount off to TIG weld it to the new mount if needed. __________________
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04-11-2018, 12:36 AM	#51
Yozh Colonel 870 Rep 2,615 Posts Drives: 2011 335d M-Sport Join Date: Mar 2014 Location: Wet Coast iTrader: (4)	Would run with more nvh at idle and coasting below 60kph.
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04-11-2018, 10:34 AM	#53
Yozh Colonel 870 Rep 2,615 Posts Drives: 2011 335d M-Sport Join Date: Mar 2014 Location: Wet Coast iTrader: (4)	I do not know of anyone running aftermarket mounts. Be nice to get rid of another failure point but wonder what nvh would be. I do not have them.
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04-13-2018, 12:14 PM	#55
Asonchadwick Sleepy 75 Rep 367 Posts Drives: bmw Join Date: Jun 2017 Location: usa iTrader: (0)	Fcp euro now carrying our mounts. Glad i asked them to add them hehe. price is 110 each i believe.
	Appreciate 1 Mark M239.50 Quote

12-10-2018, 03:24 PM	#58
SamBMW5Series New Member 1 Rep 6 Posts Drives: BMW 528i XDrive Join Date: Dec 2018 Location: las vegas iTrader: (0)	Motor Mounts? Hi , Even I am looking for information on Engine Mounts Replacement will cover under the certified pre-owned warranty or not. I went to the dealership and they checked my car and said mounts need to change and it wll not cover in CPO. Dose anyone got the Mounts covered in CPO. Even I have my maintenance plan as well untill 2020. for this work estimated cost is 1600$ for BMW 2014 5 Series :-(
	Appreciate 0 Quote

12-10-2018, 09:44 PM	#59
Owen81 Lieutenant 83 Rep 432 Posts Drives: 335d, 17/22 TDI Join Date: May 2015 Location: Alberta, Canada iTrader: (0)	Usually motor mounts are a wear item and would not be covered under warranty, but your mounts are only ~$110 each. I have never worked on an N20 but that seems like way too much labor to replace the mounts
	Appreciate 0 Quote

12-11-2018, 02:37 AM	#61
Owen81 Lieutenant 83 Rep 432 Posts Drives: 335d, 17/22 TDI Join Date: May 2015 Location: Alberta, Canada iTrader: (0)	He said 2014 5 Series and his profile says he has a 528i XDrive. So N20?
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12-11-2018, 05:04 AM	#62
RED-d Private First Class 27 Rep 189 Posts Drives: 2010 335d Sport, Tuned Join Date: Jun 2017 Location: SWFL iTrader: (0)	Just reading this resurrected post for the first time and wanted to mention that I just did my mounts. My passenger side "side" bolt was all the way out and laying on the bracket. The drivers side "side" bolt was backed over half-way out. I had no noticeable vibration difference after new mount install. I didn't replace because of any symptoms. Just mileage at 140k and no indication they had previously been replaced.
	Appreciate 0 Quote

12-11-2018, 08:47 AM	#65
335dlci Lieutenant Colonel 277 Rep 1,572 Posts Drives: 335d Join Date: Apr 2014 Location: Socal iTrader: (0)	Also new car and cpo warranty coverage has changed over the years
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