SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Engine mounts need replacing

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Old Jun 26, 2020 | 05:07 AM
  #1  
hydrogen's Avatar
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2005 SL500
Engine mounts need replacing

Hi
I have a 2005 SL500 7 speed.
I am told by my mechanic that the engine mounts need replacing.
If I don't drive the car hard then don't worry about the mounts.
I do experience some engine vibration or rough running that I can hear and
feel through the steering wheel.
I was wondering if could this be because of the engine mounts being shot and need replacing.

Thanks.
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Old Jun 26, 2020 | 11:34 AM
  #2  
mjbones's Avatar
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Joined: May 2020
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From: Satellite Beach, FL
2005 C230, 2006 SL600, 2008 C300, 2009 ML550, 2020 GLE550
Depending on how bad they are, it can make a huge difference in the ride again.
Also, as the engine has "shifted", so too have all the connections, hoses, etc...
Someone with more experience may chime in, but I am pretty sure you can view one or two from the bottom to get an idea of condition.
I have not done on my recently acquired, 06 SL600 (42,000 miles) yet, but it is on the short list for car updating.
Very curious to see what others have to say as well.
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Old Jun 26, 2020 | 11:40 AM
  #3  
imtheking's Avatar
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Former R230, W220 and W221 owner
A collapsed engine due to engine mounts will end up doing more damage in the long run- like MJ mentioned- you're going to damage hoses, connections etc

Get them changed and use genuine mounts - when I did mine I want to stay it was $1200 for parts and labor
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Old Jun 26, 2020 | 12:58 PM
  #4  
poppyboy's Avatar
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From: Lincolnshire, IL
2005 SL55 AMG
This is a DIY job of moderate difficulty. Jacking up the engine from the center lift point enables access. $120 for both mounts. YouTube has how-to videos.
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Old Jun 26, 2020 | 02:19 PM
  #5  
Ghostty's Avatar
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From: North Cali
2005 SL500, 2015 CLS400
The engine mounts on SL are with oil inside. If they fail - you definitely want to replace them. Considering the car is 15 years old - $500 for new engine mounts that will last another 15 years - tat's nothing. Better get it done. Usually you'd like to check with the transmission mount - there's only 1 right under the transmission - even easier to replace. Check that one too.
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