GL Class (X166)
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Mercedes-Benz SUVs, Trucks, Vans, Diesels, Other
GL Class (X166)
2013-2015 after facelift became GLS (X166)
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STICKIES
Sticky
Age / gender of GL owners
248
Started: Jan 16, 2013 by
Bernardy
Last Post:
Feb 12, 2026 by 25th Car
Sticky
X166 GL-Class Unofficial Picture Thread
309
Started: Oct 11, 2012 by
JimBarnhart
Last Post:
Sep 28, 2025 by itb76
Sticky Poll
What color is your GL?
61
Started: Jan 28, 2013 by
JimBarnhart
Last Post:
Nov 22, 2023 by G Wagen
Discussions
2013 GL63 AMG suspension questions
2
Started: Apr 15, 2026 by
saddlebrook
Last Post:
Apr 17, 2026 by Jvac
Difference's between om642
0
Started: Apr 16, 2026 by
ltpro
Last Post:
Apr 16, 2026 by ltpro
2014 GL550 engine knocking noise
102
Started: Jan 11, 2020 by
Floridah
Last Post:
Apr 12, 2026 by GL550215
DIY - Fuel Injector Replacement on a 2014 Mercedes-Benz GL350...
17
Started: Jan 5, 2019 by
Keep
Last Post:
Apr 7, 2026 by GBizzle
Replacing front subframe bushings
13
Started: Nov 27, 2025 by
mekantor
Last Post:
Apr 6, 2026 by mekantor
How to remove front passenger door applique?
0
Started: Apr 6, 2026 by
tsped
Last Post:
Apr 6, 2026 by tsped
2016 GL450 shutting off while driving – charging issue?
6
Started: Dec 15, 2025 by
bobb00
Last Post:
Apr 1, 2026 by Nev04e320
2013 GL 350 - 200K Mile Check In
9
Started: Dec 26, 2025 by
mercbusky
Last Post:
Mar 30, 2026 by olesouthernboy
Turn signal stalk acting up
129
Started: Jan 28, 2019 by
mekantor
Last Post:
Mar 20, 2026 by mekantor
Owners with M278 Engines - A Class Action Lawsuit
18
Started: May 17, 2025 by
futurego
Last Post:
Mar 14, 2026 by Johnnybgoodone
Turbo coolant reservoir cracked
16
Started: Dec 23, 2020 by
Al Chavez
Last Post:
Mar 12, 2026 by OldManAndHisCar
2015 GL550 Oil loss help
3
Started: Mar 11, 2026 by
Drewcc
Last Post:
Mar 12, 2026 by OldManAndHisCar
P0102 and CEL ON
1
Started: Nov 18, 2021 by
L-L
Last Post:
Mar 11, 2026 by colnagotifosi
P0103, P0111 code on my 2015 GL350
2
Started: Jul 14, 2020 by
sungjk
Last Post:
Mar 11, 2026 by colnagotifosi
Rear Shock Alternatives - Miessler Automotive
19
Started: Nov 4, 2020 by
Jim Ma
Last Post:
Mar 9, 2026 by The French Guy
2014 GL 450 Cylinder 5
25
Started: Feb 16, 2026 by
Squatting Hen
Last Post:
Mar 3, 2026 by angelglo
GL500 Stiffer Steering
0
Started: Feb 28, 2026 by
AMG4FUN
Last Post:
Feb 28, 2026 by AMG4FUN
M278 Rebuild
149
Started: Aug 2, 2021 by
arsupisemnet
Last Post:
Feb 27, 2026 by Mitchell Gort
2016 GL450 Starter Replacement
9
Started: Jan 21, 2026 by
aaaaah142
Last Post:
Feb 21, 2026 by Bumbleboy92
GL Steel Skid Plate
0
Started: Feb 21, 2026 by
25th Car
Last Post:
Feb 21, 2026 by 25th Car
2014 GL450 (X166) Black Screen - Audio Works, Fuse #21 & Flashlight...
0
Started: Feb 20, 2026 by
WhereIsJim
Last Post:
Feb 20, 2026 by WhereIsJim
Valve Cover Replacement
3
Started: Feb 10, 2026 by
semakuln
Last Post:
Feb 18, 2026 by angelglo
'14 GL450 Airmatic normal operation and troubleshooting
13
Started: May 23, 2022 by
g-rex
Last Post:
Feb 16, 2026 by MAYBACH W220
What to look out for when buying a 2015 GL 450
4
Started: Feb 5, 2026 by
dtamack
Last Post:
Feb 12, 2026 by 25th Car
P2806 and the ISM transmission module
2
Started: Feb 5, 2026 by
KA0TYK
Last Post:
Feb 5, 2026 by nova23zz502
Heating issues(again)... desiccant bag, flush again?
24
Started: Jan 21, 2022 by
ChicagoPete
Last Post:
Feb 5, 2026 by KA0TYK
Windshield Wiper Spindle Seal/ Grommet
15
Started: Apr 18, 2022 by
steh-fan
Last Post:
Jan 31, 2026 by steh-fan
2013 GL450 rear ac smell
0
Started: Jan 29, 2026 by
Gl450ah
Last Post:
Jan 29, 2026 by Gl450ah
Front Suspension Woes Continue
11
Started: Sep 17, 2025 by
Matt S.
Last Post:
Jan 28, 2026 by olesouthernboy
M278 cam sensor leaking oil into engine harness - anyone install...
148
Started: Sep 3, 2019 by
Elric99
Last Post:
Jan 28, 2026 by michelfloride
Oil in engine harness
186
Started: Sep 3, 2020 by
SndsoftheSbrbs
Last Post:
Jan 28, 2026 by michelfloride
12.8-inch Mercedes-Benz GL 2012-2015 Infotainment System Upgrade...
0
Started: Jan 28, 2026 by
carputech
Last Post:
Jan 28, 2026 by carputech
Windshield Washer not Spraying (Grommet)
1
Started: Jan 25, 2026 by
mainecelt
Last Post:
Jan 27, 2026 by mercbusky
My history with the GL550
1
Started: Jan 25, 2026 by
Blackgl550
Last Post:
Jan 26, 2026 by Sashmeister
Heated Steering Wheel Swap
9
Started: Jan 18, 2022 by
MartinC2S
Last Post:
Jan 26, 2026 by MartinC2S
2019 GLE 400 P06dA code
0
Started: Jan 25, 2026 by
Sublettm
Last Post:
Jan 25, 2026 by Sublettm
Front Wheel Bearing on 2012 GL 350
2
Started: Jan 12, 2026 by
bigbuilder
Last Post:
Jan 25, 2026 by olesouthernboy
Question for BenzNinja
0
Started: Jan 24, 2026 by
olesouthernboy
Last Post:
Jan 24, 2026 by olesouthernboy
Please help
1
Started: Jan 22, 2026 by
dadavid1
Last Post:
Jan 23, 2026 by Ler
Picture of driver heat shield for 2013 GL450
0
Started: Jan 21, 2026 by
NC_W477
Last Post:
Jan 21, 2026 by NC_W477
2015 GL 450 starter replacement
2
Started: Feb 20, 2022 by
domehead100
Last Post:
Jan 21, 2026 by aaaaah142
Oil in ignition coil plug
2
Started: Jan 20, 2026 by
deeperblue
Last Post:
Jan 20, 2026 by roviw1
B009587 fault SRS light on
8
Started: May 19, 2022 by
AnSimard
Last Post:
Jan 18, 2026 by qxron
Buzzing noise from GL450
2
Started: Nov 29, 2025 by
autocar
Last Post:
Jan 18, 2026 by qxron
2015 GL63 - Door Clicking/Cracking Noise When Opening/Closing
13
Started: Aug 2, 2022 by
cyberdyne
Last Post:
Jan 18, 2026 by qxron
Humming Sound
16
Started: Jun 26, 2014 by
baobay
Last Post:
Jan 18, 2026 by qxron
Mission impossible to remove ignition coil 3 & 4
8
Started: Dec 28, 2025 by
deeperblue
Last Post:
Jan 16, 2026 by deeperblue
Upgrade Your Mercedes-Benz GL with the Ultimate 12.8” Android Screen...
0
Started: Jan 15, 2026 by
carputech
Last Post:
Jan 15, 2026 by carputech
What services/tuning to perform at 80k miles?
4
Started: Dec 30, 2025 by
deeperblue
Last Post:
Jan 8, 2026 by deeperblue
flashing wrench, SOS and I lights
1
Started: Jan 6, 2026 by
maneesh
Last Post:
Jan 7, 2026 by maneesh
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