ML63 engine mounts vs x166 GL550?
Thread Starter
Member
Joined: Jul 2010
Posts: 166
Likes: 9
From: Castle Rock, CO
'21 GLE53, ‘11 E63, '13 M3
ML63 engine mounts vs x166 GL550?
As the w166 ML63 are on back order, the dealership decided to put the x166 engine mounts. They are different part number but according to them, they fit.
I was wondering if there was a technical difference between the two? I would think so as the part numbers are difference and they don’t seem to supersede the w166 engine mounts.
I would think both are liquid filled but do wonder if they is a difference in durability even though they look the same.
ML63 Engine mounts:
a1662407717
a1662407917
X166 GL Engine mounts:
a1662406017
a1662406117
I was wondering if there was a technical difference between the two? I would think so as the part numbers are difference and they don’t seem to supersede the w166 engine mounts.
I would think both are liquid filled but do wonder if they is a difference in durability even though they look the same.
ML63 Engine mounts:
a1662407717
a1662407917
X166 GL Engine mounts:
a1662406017
a1662406117
Out Of Control!!
Joined: Sep 2018
Posts: 14,666
Likes: 4,568
From: unbegrenzt
2017 GLE350 4MATIC
As the w166 ML63 are on back order, the dealership decided to put the x166 engine mounts. They are different part number but according to them, they fit.
I was wondering if there was a technical difference between the two? I would think so as the part numbers are difference and they don’t seem to supersede the w166 engine mounts.
I would think both are liquid filled but do wonder if they is a difference in durability even though they look the same.
ML63 Engine mounts:
a1662407717
a1662407917
X166 GL Engine mounts:
a1662406017
a1662406117
I was wondering if there was a technical difference between the two? I would think so as the part numbers are difference and they don’t seem to supersede the w166 engine mounts.
I would think both are liquid filled but do wonder if they is a difference in durability even though they look the same.
ML63 Engine mounts:
a1662407717
a1662407917
X166 GL Engine mounts:
a1662406017
a1662406117
Main design differences are packaging space in the vehicle, heat/thermal load and engine torque.
Rule of thumb says the 63 is a more severe environment for engine mounts than the 550. Therefore rule of thumb says the 63 mounts should be no less durable than 550 mounts.
Thread Starter
Member
Joined: Jul 2010
Posts: 166
Likes: 9
From: Castle Rock, CO
'21 GLE53, ‘11 E63, '13 M3
There is no practical way of knowing the difference in durability without cutting the two designs apart and measuring them, or running extended durability tests in a lab.
Main design differences are packaging space in the vehicle, heat/thermal load and engine torque.
Rule of thumb says the 63 is a more severe environment for engine mounts than the 550. Therefore rule of thumb says the 63 mounts should be no less durable than 550 mounts.
Main design differences are packaging space in the vehicle, heat/thermal load and engine torque.
Rule of thumb says the 63 is a more severe environment for engine mounts than the 550. Therefore rule of thumb says the 63 mounts should be no less durable than 550 mounts.
Thread Starter
Member
Joined: Jul 2010
Posts: 166
Likes: 9
From: Castle Rock, CO
'21 GLE53, ‘11 E63, '13 M3
There is no practical way of knowing the difference in durability without cutting the two designs apart and measuring them, or running extended durability tests in a lab.
Main design differences are packaging space in the vehicle, heat/thermal load and engine torque.
Rule of thumb says the 63 is a more severe environment for engine mounts than the 550. Therefore rule of thumb says the 63 mounts should be no less durable than 550 mounts.
Main design differences are packaging space in the vehicle, heat/thermal load and engine torque.
Rule of thumb says the 63 is a more severe environment for engine mounts than the 550. Therefore rule of thumb says the 63 mounts should be no less durable than 550 mounts.
Out Of Control!!
Joined: Sep 2018
Posts: 14,666
Likes: 4,568
From: unbegrenzt
2017 GLE350 4MATIC
- do nothing
- replace with available MB parts (63 mounts)
- aftermarket mounts if available
Which option seems best to you?
Thread Starter
Member
Joined: Jul 2010
Posts: 166
Likes: 9
From: Castle Rock, CO
'21 GLE53, ‘11 E63, '13 M3
I am calling them today to get clarification as I have other observations I need to discuss with them for the services performed.
Thanks for your input chassis.
MBWorld Fanatic!
Joined: Aug 2003
Posts: 8,882
Likes: 1,212
From: In my garage
E55, GLS450, GL63, GLE350
I waited around 3 months for the ones on my GL63 to become available. If the part number is different, there may be a real difference. You will know if you get less than 100k miles from the 550 mounts. At what mileage did yours fail?
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Thread Starter
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From: Castle Rock, CO
'21 GLE53, ‘11 E63, '13 M3
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