GL Class (X164)
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Mercedes-Benz SUVs, Trucks, Vans, Diesels, Other
GL Class (X164)
2007-2012: GL320CDI, GL420CDI, GL450, GL550
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STICKIES
Sticky
GL Online owner's manual.
25
Started: Jun 8, 2008 by
Brocktoon
Last Post:
Nov 18, 2025 by wx243
Sticky
X164 GL-Class Unofficial Picture Thread
1,352
Started: Jun 14, 2006 by
iLoveMyMB
Last Post:
Nov 27, 2024 by Diamond Dave
Sticky
MB World Wiki Thread
1
Started: Jul 10, 2012 by
johnand
Last Post:
Jul 10, 2012 by Fourdiesel
Discussions
COMAND CD changer drains battery
6
Started: Apr 25, 2026 by
GL350_Sweden
Last Post:
Yesterday by Sallad
My life with a 122k 2012 GL450
135
Started: Aug 25, 2024 by
twcom
Last Post:
Apr 20, 2026 by Pmanc
Headlight projector retrofit
17
Started: Dec 12, 2022 by
EWT
Last Post:
Apr 19, 2026 by Tsumi
Multi-contour Seats Retrofit?
27
Started: Jun 20, 2021 by
Misha_
Last Post:
Apr 17, 2026 by Max Blast
Change wheel bearings as preventive maintenance at 225K miles?
30
Started: Mar 23, 2026 by
eric_in_sd
Last Post:
Apr 17, 2026 by eric_in_sd
AC help
0
Started: Apr 17, 2026 by
vesiadog
Last Post:
Apr 17, 2026 by vesiadog
2011 GL450 back up camera
0
Started: Apr 17, 2026 by
Thguns
Last Post:
Apr 17, 2026 by Thguns
New to X164…but willing to work on it.
8
Started: Mar 25, 2026 by
jazzman_q
Last Post:
Apr 15, 2026 by jazzman_q
2011 GL350 Sat for a Year
6
Started: Apr 6, 2026 by
pjhiggins
Last Post:
Apr 15, 2026 by Sallad
Code reader comparison question
4
Started: Apr 13, 2026 by
jazzman_q
Last Post:
Apr 15, 2026 by Sallad
Recommendations for pads and rotors?
5
Started: Apr 12, 2026 by
TrialsDoc
Last Post:
Apr 15, 2026 by lkchris
Main battery replacement 2012 GL350... Who's done it?
30
Started: Jan 6, 2018 by
Jason B
Last Post:
Apr 7, 2026 by oldmangrimes
2008 GL450 Wheel Bearings
1
Started: Apr 6, 2026 by
TheWhiteRonnie
Last Post:
Apr 6, 2026 by eric_in_sd
Cardone CV axles
9
Started: Mar 23, 2026 by
eric_in_sd
Last Post:
Apr 6, 2026 by eric_in_sd
2011 GL350 - headlight washer system
1
Started: Apr 3, 2026 by
Koziol
Last Post:
Apr 4, 2026 by lkchris
Moving On Up!
5
Started: Mar 30, 2026 by
lkchris
Last Post:
Apr 2, 2026 by Sallad
EBV ABS ESP Inoperative Diagnosis/Rig test
15
Started: Aug 6, 2018 by
eric_in_sd
Last Post:
Mar 30, 2026 by Max Blast
Can I bypass my radiator transmission cooler?
2
Started: Mar 28, 2026 by
Jackf12
Last Post:
Mar 29, 2026 by eric_in_sd
2007 GL450 Oil Cooler Gasket Issue
11
Started: Apr 2, 2023 by
Mike May
Last Post:
Mar 27, 2026 by eric_in_sd
2007 GL450 Oil Cooler gasket r/r
0
Started: Mar 27, 2026 by
AleksL
Last Post:
Mar 27, 2026 by AleksL
A/C System Question
1
Started: Mar 26, 2026 by
JBware
Last Post:
Mar 27, 2026 by Sallad
Battery Charging (NOCO Genius 10)
4
Started: Mar 18, 2026 by
91stealthes
Last Post:
Mar 25, 2026 by 91stealthes
Misfire Code
4
Started: Mar 19, 2026 by
noud
Last Post:
Mar 20, 2026 by Sallad
Rear air shocks/bags replaced/re-set?
11
Started: Jan 16, 2026 by
hemigtx
Last Post:
Mar 16, 2026 by vesiadog
Summary of GL320 CDI maintenance requirements
18
Started: Mar 7, 2009 by
anb957
Last Post:
Mar 13, 2026 by lkchris
back gate failure
4
Started: Mar 6, 2026 by
rockit31
Last Post:
Mar 7, 2026 by Sallad
Transmission Fault - Intermittent
9
Started: Apr 27, 2024 by
Tommmo
Last Post:
Mar 6, 2026 by johnfranciscog
2010 GL450 or 2011 GL450?
16
Started: Apr 8, 2011 by
umalik
Last Post:
Mar 5, 2026 by Sallad
Airmatic raise function issue
19
Started: Feb 14, 2026 by
GLDriver
Last Post:
Mar 4, 2026 by Sallad
Random shuddering at low rpm during acceleration. Help appreciated.
29
Started: Sep 20, 2025 by
Ddienno
Last Post:
Feb 25, 2026 by Ddienno
GL450 Airmatic Giving Up
34
Started: Feb 15, 2023 by
JMK123
Last Post:
Feb 25, 2026 by GLDriver
red battery message
9
Started: Feb 21, 2026 by
lyonsfin
Last Post:
Feb 24, 2026 by Max Blast
gl350 parasitic draw- Blower motor head unit
4
Started: Feb 21, 2026 by
suzbugabu
Last Post:
Feb 24, 2026 by Max Blast
Gl350 battery compartment fills with water
42
Started: Jan 6, 2023 by
Waspjr
Last Post:
Feb 18, 2026 by Max Blast
Mercedes GL450 code 9006
4
Started: Feb 15, 2026 by
quick-tire
Last Post:
Feb 15, 2026 by Max Blast
X164 GL550 Buying Advice
82
Started: Nov 20, 2025 by
Courier64
Last Post:
Feb 14, 2026 by Max Blast
722.9 conductor plate programming question
5
Started: Feb 11, 2026 by
Koziol
Last Post:
Feb 12, 2026 by Max Blast
722.9 - Component Y3/8s1 defective VGS3-NAG2
17
Started: Apr 5, 2025 by
Koziol
Last Post:
Feb 12, 2026 by trigital
2012 GL350 DPF/EGR/SCR/ADBLUE/FLAP delete - WIP & Guide
76
Started: Aug 8, 2019 by
ccrobin
Last Post:
Feb 10, 2026 by artim808
2010 GL350 DPF/SCR/ADBLUE Delete
136
Started: Dec 20, 2018 by
qxron
Last Post:
Feb 9, 2026 by zerochills
Compass
6
Started: Feb 4, 2026 by
Pmanc
Last Post:
Feb 6, 2026 by Max Blast
Heat not working on both front seat base
5
Started: Jan 24, 2026 by
ashishNJ
Last Post:
Feb 6, 2026 by Sallad
Anyone parting out an X164
2
Started: Jan 31, 2026 by
amthatiam
Last Post:
Jan 31, 2026 by amthatiam
OM642 Viton charge pipe O-rings
2
Started: Jan 29, 2026 by
amthatiam
Last Post:
Jan 31, 2026 by amthatiam
Trunk Lift gate sensor replacement assistance
8
Started: Nov 29, 2025 by
Walid Alobidi
Last Post:
Jan 31, 2026 by Walid Alobidi
Looking for a decent shop in Southern Wisconsin to address some...
0
Started: Jan 30, 2026 by
cabowabodude
Last Post:
Jan 30, 2026 by cabowabodude
Turbo troubles
6
Started: Jan 23, 2026 by
jonathankreb
Last Post:
Jan 28, 2026 by jonathankreb
2011 Mercedes GL350 Bad EIS
0
Started: Jan 26, 2026 by
tesslinger
Last Post:
Jan 26, 2026 by tesslinger
2011 GL350 - X164 - Refrigerant Line Routing
1
Started: Jan 22, 2026 by
Koziol
Last Post:
Jan 22, 2026 by Sallad
450 GL Transmission rebuild referral _ Chicago
8
Started: Jan 12, 2026 by
sevenchii
Last Post:
Jan 21, 2026 by Max Blast
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