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

Suspension Torque specs

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Old Feb 13, 2023 | 12:57 PM
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r63wannabe's Avatar
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2011 GL550
Suspension Torque specs

Hey all, I’m swapping the front air suspension with factory replacements, Bilstein.

I am also do the sway bar bushings, and sway bar links.

Does anyone have the torque specs for the strut mount, the bolt connecting the strut to the lower control arm, the sway bar links, and bushings?

I’m not wanting to over tighten and strip anything.

Thanks I’m advance!!!
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Old Feb 13, 2023 | 05:40 PM
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atraudes's Avatar
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From: Sammamish, WA
2011 E350 Wagon, 2010 GL450
PM or post your VIN. I can look it up in WIS
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Old Feb 13, 2023 | 06:29 PM
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2007 GL450
They are big steel bolts going into big steel nuts. I never bothered with any specific torque specs. Just yank 'em gutentite.
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Old Feb 13, 2023 | 10:07 PM
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NGL450 w/EORP, S550
Pull whatcha got.

after the car is sitting flat on the deck, of course.
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Old Feb 14, 2023 | 08:35 AM
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From: Emmett, ID, USA
2007 GL450
Originally Posted by Max Blast
after the car is sitting flat on the deck
I don't think that is necessary for strut replacement.

However, if you keep the clamps tight on the swaybar, yes those bolts must be tightened at ride height.
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Old Feb 14, 2023 | 03:33 PM
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X166 GL550
Check the attached document
Attached Files
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Old Feb 15, 2023 | 10:12 AM
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From: Sammamish, WA
2011 E350 Wagon, 2010 GL450
Sorry it took a while. Looks like DarthVaderpa has you covered for the strut, but jic here's the docs for your VIN. Let me know if you need any others.
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Old Feb 26, 2023 | 08:41 PM
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2011 GL550
@DarthVaderpa @atraudes thanks a million! That's everything I need to get this done!!!!
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Old Aug 13, 2025 | 07:30 PM
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08' S550, 19' GLS450
I had a quick question. Do any of the bolts have to be torqued down while the car is at ride height?
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Old Aug 14, 2025 | 01:05 PM
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2007 GL450
Originally Posted by S550TK
I had a quick question. Do any of the bolts have to be torqued down while the car is at ride height?
yes. use another floor jack to push up the brake rotor to normal ride height.
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Old Aug 15, 2025 | 01:12 AM
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08' S550, 19' GLS450
Do I need to do this for all the nuts and bolts or only some of them?
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Old Aug 15, 2025 | 10:20 AM
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Originally Posted by S550TK
Do I need to do this for all the nuts and bolts or only some of them?
It's for bushings that rotate. This is generally the bolts on the frame, not the steering knuckle. Not needed for ball joints. Almost for anywhere where the bolt is horizontal vs vertical. Look up "properly clocking" control arms. There's some good videos explaining in YouTube.
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