GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

2009 GL 450 Suspension Sound

Old 10-26-2018, 11:45 AM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 15
Liked 0 Times in 0 Posts
2009 GL450
2009 GL 450 Suspension Sound


I own a 2009 GL450 with 145K and have a mild knocking sound in the front end. Sound like it's coming more from the middle then the sides. Mostly over bumps but not always. I am not a mechanic but I jacked it up and took a look and it looks like two of the bushings are bad, in what I believe is the control arms (or maybe they are called the guide arms)? I have the tools and motivation but would like to confirm what the part I need is and how big of a job it is. I looked on YouTube but cannot find a video specific to my car. I looked up control arm bushings but there are 8 different kinds. This one is in the far back of that triangular bar.


nobleeth is offline  
Old 10-26-2018, 07:50 PM
Join Date: Jan 2017
Location: Houston, TX
Posts: 124
Liked 20 Times in 17 Posts
Mercedes Benz 2007 GL450 , 2012 BMW 528i and 2002 Chrysler Town and Country (200K+)
yes, those are control arm bushings. rear-inner to be exact.
The best and easy route is to change the whole control arm as new one comes with new bushings.
You can change individual bushings - cheaper but difficult / time consuming.
If paying for the labor, preinstalled is cheaper
if doing yourself, changing individual bushings is cheaper but it depends on how much your time is worth.
TX07GL450 is offline  
The following users liked this post: TX07GL450
nobleeth (11-18-2018)

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:

Quick Reply: 2009 GL 450 Suspension Sound

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: