W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Check your motor mounts!

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Old Nov 17, 2010 | 06:53 PM
  #1  
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2008 ML63 2009 SL63 2010 Alpha 7 GTR
Check your motor mounts!

Just replaced my motor mounts, I think it was time...
Attached Thumbnails Check your motor mounts!-photo-9-.jpg  
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Old Nov 17, 2010 | 07:45 PM
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Originally Posted by E55Bullet
Just replaced my motor mounts, I think it was time...
Wow! Did you see signs of them leaking? What led you to checking them out.
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Old Nov 17, 2010 | 07:55 PM
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What were you seing problem wise witht the bad mounts?
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Old Nov 17, 2010 | 07:59 PM
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From: Lafayette, IN
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Originally Posted by cal1
Wow! Did you see signs of them leaking? What led you to checking them out.
Nope Curt I didnt, just rough idle, noise at high speeds, and shaking in the steering wheel!
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Old Nov 17, 2010 | 08:41 PM
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Cool hope my steering wheel shake goes away with the new mounts
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Old Nov 18, 2010 | 12:01 AM
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From: Lafayette, IN
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Originally Posted by Evolved8
Cool hope my steering wheel shake goes away with the new mounts


I hope it solves your problem! If not, there is always the basic mount and balance of the tires, but im going to bet it's the motor and tranny mount.

-Chad
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Old Nov 18, 2010 | 10:27 AM
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Originally Posted by E55Bullet
I hope it solves your problem! If not, there is always the basic mount and balance of the tires, but im going to bet it's the motor and tranny mount.

-Chad
Yeah, I just had my 20'' HRE wheels balanced. We will see what happens I have that annoying side to side shimmy in the steering wheel.
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Old Nov 18, 2010 | 04:38 PM
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How much does did this job cost you ?
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Old Nov 18, 2010 | 04:50 PM
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Originally Posted by E55AMGGG04
How much does did this job cost you ?
If you were referring to me...
Iam an Employee so I'am SUPER lucky with a $40 dollar an hour labor rate. Both engine and trans mount installed were $360 maybe a little More.
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Old Nov 18, 2010 | 05:14 PM
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I just did my transmission and motor mounts, too. I was having a rough idle, engine was shaking and vibrating a lot - also, you could see the engine lift higher than normal when accelerated with the hood up and foot on the brake. (A good test to see if yours are bad)

The mounts themselves were $180 each, and the transmission one was $42, so roughly $400 in parts plus a few hours labor. You can get the parts cheaper online, I had it done at a shop and it was around $900 total. (Mercedes quotes even more!)
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Old Nov 18, 2010 | 06:02 PM
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I paid around $100 a piece for the motor mounts (cost) and 40 or so for the transmission mount. Labor is free. Perks of owning your own auto shop =)
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Old Nov 18, 2010 | 07:00 PM
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Originally Posted by E55Bullet
I paid around $100 a piece for the motor mounts (cost) and 40 or so for the transmission mount. Labor is free. Perks of owning your own auto shop =)
I'm thinking $800 or $900 last time I had a set of motor mounts replaced at the dealer. i did get a free cup of coffee though.
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Old Nov 18, 2010 | 11:13 PM
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All i have to say is WOW It runs and drives like a new car with the new engine mounts and trans mount. No more shaking steering wheel rough idle or side to side shake at idle/start up. I highly recomend more E55 owners to have there mounts checked. WHAT A DIFFERENCE
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Old Nov 19, 2010 | 12:23 AM
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Originally Posted by Evolved8
All i have to say is WOW It runs and drives like a new car with the new engine mounts and trans mount. No more shaking steering wheel rough idle or side to side shake at idle/start up. I highly recomend more E55 owners to have there mounts checked. WHAT A DIFFERENCE


LOL yeah i forgot to mention how big of a difference it was.. my bad
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Old Nov 19, 2010 | 08:34 AM
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Its all good. Thanks for reminding me I needed to get that done!!
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Old Nov 19, 2010 | 08:52 AM
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I get a little vibe on my 63 when rolling out from a dig. Happens from about 1000-1300 rpm. It doesn't happen if I'm hard on the go pedal, just when I'm starting slowly. I was wondering if it was mounts or something ignition related. Car runs like a top otherwise.
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Old Nov 19, 2010 | 09:28 AM
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Are these a concern with our cars around 38K (my current mileage)?

What mileage are you guys seeing these leak/fail?

Thank you
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Old Nov 19, 2010 | 12:32 PM
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Originally Posted by ELITE_KOV
Are these a concern with our cars around 38K (my current mileage)?

What mileage are you guys seeing these leak/fail?

Thank you
Guys usually see them show wear from 30k-50k
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Old Nov 19, 2010 | 02:54 PM
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Originally Posted by Evolved8
Guys usually see them show wear from 30k-50k
+1

I had the dealer tell me one motor mount showed signs of leaking at roughly 40,000. I don’t recall any vibrations or driving feedback at that time. At about 45,000, I had the motor mounts replaced when adding mods. It seemed to make sense that solid mounts would be a good thing since I was adding a few ponies.

I had the motor mounts replaced again last spring at about 70,000 miles. There was a vibration similar to what E55Bullet and Evolved 8 experienced. I thought it was the tranny mount based on things I had read on the forum. The dealer said it was the motor mounts because they were “pancaked” which was the result of a bad install by the shop that installed my mods. The dealer replaced the mounts and the problem was still there. They replaced the tranny mount and the problem was solved.

As I understand it, the liquid filled motor mounts are excellent as far as isolating engine vibration, but certainly will wear out especially on the modded beasts.
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