Engine or Transmission mount Change

Dec 13, 2021 | 08:20 AM

Jt0230

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GLS 550

Engine or Transmission mount Change

Good morning,

I have a 2017 GLS 550 with 92K miles and there is a pulsing vibration when in park. I also feel a harsher start. The RPMs do not move, and I can't notice a difference Do you guys think I need to get the engine mount or transmission mount checked out?

Dec 13, 2021 | 03:52 PM

chassis

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From: unbegrenzt

2017 GLE350 4MATIC

Could be. How objectionable is it? Engine mounts are a tough job. Trans mount much easier.

Besides idle are there any symptoms?

Dec 13, 2021 | 04:31 PM

Jt0230

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Joined: Nov 2018

Posts: 66

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GLS 550

Thanks for the quick reply. Its not bad at all, and my wife can't even tell there is a slight pulsing. The idle looks great, no excess engine movement when starting or giving it gas. I maybe just overthinking it. I have another 8k until warranty is done, and if it's something bigger I want it to get covered. ( I know mounts are not covered). Is there a way I can look at the transmission mount without taking anything off? Thank you for the help.

Dec 13, 2021 | 10:05 PM

chassis

Out Of Control!!

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From: unbegrenzt

2017 GLE350 4MATIC

Quote:

Originally Posted by Jt0230

Either put the vehicle on a lift or crawl under it and take a look. I think there are no belly pans under the transmission mount, but not 100% sure. Bring a prybar with you to see how easy, or not, it is to move the transmission on the mount. Look for tears or cracks in the rubber. If it's not knocking or banging, the trans mount is probably fine. Idle vibrations might indicate engine mounts on their way out.

Jan 3, 2022 | 02:37 PM

Jt0230

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GLS 550

UPDATE:

The dealership just called and said the right motor mount was out. They are replacing both motor and transmission mounts under warranty. Thanks everyone for helping.

Jan 3, 2022 | 02:57 PM

chassis

Out Of Control!!

Joined: Sep 2018

Posts: 14,710

Likes: 4,601

From: unbegrenzt

2017 GLE350 4MATIC

Quote:

Originally Posted by Jt0230

UPDATE:

The dealership just called and said the right motor mount was out. They are replacing both motor and transmission mounts under warranty. Thanks everyone for helping.

Good to hear of the solution. What tipped you off? The idle vibration or were there also other symptoms?

Jan 3, 2022 | 04:28 PM

iridium18

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Joined: Jul 2017

Posts: 541

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From: Houston Texas

2023 AMG GLE63s, 2017 AMG SL63, 2024 Sprinter, 1958 Chevrolet Corvette

Jt0230 - glad to hear the Dealership did well by you ... I've received great service from mine as well.

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Jan 3, 2022 | 06:50 PM

Jt0230

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Joined: Nov 2018

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GLS 550

Quote:

Originally Posted by chassis

Good to hear of the solution. What tipped you off? The idle vibration or were there also other symptoms?

Chassis,

The idle vibration was the only symptom I had. The RPM was not moving, the engine did not have excessive movement when engaging the acceleration pedal, and there were no other visible indication. My wife who daily's the vehicle did not feel the vibration either. I think it was just dumb luck I was able to feel the vehicle was off. Also the air suspension went out and they are repairing that under warranty too. I am going to be worried when I am out of warranty.