MERCEDES-BENZ GL-Class 2014 X166 Owner's Manual

Additives
!
Only use DEF in accordance with ISO
22241. Do not use additives with DEF and
do not dilute DEF with water. This may
destroy the BlueTEC exhaust gas
aftertreatment system.
Purity !
Impurities in DEF (e.g. due to other
service products, cleaning agents or dust)
lead to:
R increased emission values
R damage to the catalytic converter
R engine damage
R malfunctions in the BlueTEC exhaust gas
aftertreatment system
Assuring the purity of DEF is particularly
important with respect to avoiding
malfunctions in the BlueTEC exhaust gas
aftertreatment system.
If DEF is pumped out of the DEF tank, e.g.
during repair work, it must not be returned to
the tank. The purity of the fluid can no longer
be guaranteed.
Filling capacities Model Total capacity
GL 350 BlueTEC 4MATI
C
8.2 US gal
(31.2 l) Engine oil
General notes !
Never use engine oil or an oil filter of a
specification other than is necessary to
fulfill the prescribed service intervals. Do
not change the engine oil or oil filter in
order to achieve longer replacement
intervals than those prescribed. You could
otherwise cause engine damage or damage
to the exhaust gas aftertreatment. Follow the instructions in the service
interval display regarding the oil change.
Otherwise, you may damage the engine and
the exhaust gas aftertreatment.
When handling engine oil, observe the
important safety notes on service products
(Y page 445).
The engine oils are matched to the
performance of Mercedes-Benz engines and
service intervals. You should therefore only
use engine oils and oil filters that are
approved for vehicles with maintenance
systems.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz
Center. Or visit the website
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle. Model Engine
model MB
Approval GL 450 4MATIC
GL 550 4MATIC
278 229.5
AMG vehicles
157 229.5
GL 350 BlueTEC
4MATIC
642 228.51,
229.31,
229.51 i
MB approval is indicated on the oil
containers.
Filling capacities The following values refer to an oil change
including the oil filter.Service products and filling capacities
449Technical data Z

Model Capacity
GL 450 4MATIC
GL 550 4MATIC
9.0 US qt (8.5 l)
AMG vehicles
Without external oil
cooler: 9.0 US qt (8.5 l) GL 350 BlueTEC 4
MATIC
8.5 US qt (8.0 l)
Additives
!
Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an SAE classification
(viscosity) suitable for the prevailing outside
temperatures. The table shows you which
SAE classifications are to be used. The low-
temperature characteristics of engine oils
can deteriorate significantly, e.g. as a result
of aging, soot and fuel deposits. It is therefore
strongly recommended that you carry out
regular oil changes using an approved engine
oil with the appropriate SAE classification. Brake fluid
G
WARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
Comply with the important safety notes for
service products when handling brake fluid
(Y page 445).
The brake fluid change intervals can be found
in the Maintenance Booklet.
Only use brake fluid approved by Mercedes-
Benz according to MB Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist
workshop or on the Internet at
http://bevo.mercedes-benz.com.
i Have the brake fluid regularly replaced at
a qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet. Coolant
Important safety notes G
WARNING
If antifreeze comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Let the engine cool down before you add
antifreeze. Make sure that antifreeze is not
spilled next to the filler neck. Thoroughly
clean the antifreeze from components before
starting the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine. 450
Service products and filling capacitiesTechnical data

Further information on coolants can be
found in the Mercedes-Benz Specifications
for Service Products, MB Specifications for
Service Products 310.1, e.g. on the
Internet at
http://bevo.mercedes-benz.com. Or
contact a qualified specialist workshop.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet.
Comply with the important safety precautions
for service products when handling coolant
(Y page 445).
The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
R corrosion protection
R antifreeze protection
R raising the boiling point
If the coolant has antifreeze protection down
to -35 ‡ (-37 †),the boiling point of the
coolant during operation is approximately
266 ‡ (130 †).
The an tifreeze/corrosion inhibitor
concentration in the engine cooling system
should:
R be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †).
R no t exceed 55% (antifreeze protection
down to -49 ‡ [-45 †]). Otherwise, heat
will no t be dissipated as effectively.
Mercedes-Benz recommends an antifreeze/
corrosion inhibitor concentrate in
accordance with
MB Specifications for Service Products 310.1. i
When the vehicle is first delivered, it is
filled with a coolant mixture that ensures
adequate antifreeze and corrosion
protection.
i The coolant is checked with every
maintenance interval at a qualified
specialist workshop.
Filling capacities Model Capacity
GL 450 4MATIC
GL 550 4MATIC
Approx. 11.6 US qt
(11.0 l) GL 350 BlueTEC 4
MATIC
Approx. 12.2 US qt
(11.5 l) AMG vehicles
Approx. 13.1 US qt
(12.4 l) i
Use MB 325.0 or MB 326.0 corrosion
inhibitor/antifreeze. Windshield washer system
Important safety notes G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
When handling washer fluid, observe the
important safety notes on service products
(Y page 445). Service products and filling capacities
451Technical data Z

At temperatures above freezing:
X
Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB
WinterFit.
Adapt the mixing ratio to the outside
temperature.
R Down to 14 ‡ ( Ò10 †): mix 1 part MB
WinterFit to 2 parts water.
R Down to Ò4 ‡ (Ò20 †): mix 1 part MB
WinterFit to 1 part water.
R Down to Ò20.2 ‡ (Ò 29 †): mix 2 parts MB
WinterFit to 1 part water.
i Add windshield washer fluid, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round. Climate control system refrigerant
Important safety notes The climate control system of your vehicle is
filled with refrigerant R-134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.
! Only the refrigerant R-134a and the PAG
oil approved by Mercedes-Benz may be
used. The approved PAG oil may not be
mixed with any other PAG oil that is not
approved for R-134a refrigerant.
Otherwise, the climate control system may
be damaged.
Service work, such as topping-up refrigerant
or replacing components, may only be carried
out by a qualified specialist workshop. All
applicable regulations must be adhered to,
SAE standard J639 included. Always have work on the climate control
system carried out at a qualified specialist
workshop.
Refrigerant instruction label
Example: refrigerant instruction label
:
Warning symbol
; Refrigerant filling capacity
= Applicable SAE standards
? PAG oil part number
A Type of refrigerant
Warning symbols :indicate:
R possible dangers
R having service work carried out at a
qualified specialist workshop
Filling capacities Missing values were not available at time of
going to print.
AMG vehicles Capacity
Refrigerant
PAG oil
All other models Capacity
Refrigerant
44.1 ± 0.4 oz (1250
± 10 g) PAG oil
4.9 ± 0.4 oz (140 ±
10 g) 452
Service products and filling capacitiesTechnical data

Vehicle data
General notes
Please note that for the specified vehicle
data:
R the heights specified may vary as a result
of:
- tires
- load
- condition of the suspension
- optional equipment
R optional equipment reduces the maximum
payload. Dimensions and weights Missing values were not available at time of
going to print.
Model : :
Opening height ;
;
Maximum
headroom Models
without
ON&OFFROAD
package 83.9 in -
86.9 in
(2132 mm - 2207 mm) 76.1 in -
79.1 in
(1934 mm - 2009 mm) Models with
ON&OFFROAD
package 83.9 in -
88.1 in
2132 mm - 2237 mm 76.1 in -
80.3 in
(1934 mm - 2039 mm) AMG vehicles
84.1 in -
86.6 in
2136 mm - 2199 mm 78.8 in
2002 mm Missing values were not available at time of
going to print.
All models (except for
AMG vehicles)
Vehicle width including
exterior mirrors
84.3 in
(2141 mm) Maximum vehicle height
75.2 in
(1910 mm) Maximum vehicle height
(ON&OFFROAD package)
76.4 in
(1940 mm) Minimum vehicle height
(highway driving level)
72.8 in
(1850 mm) Wheelbase
121.1 in
(3075 mm) Maximum ground
clearance
10.9 in
(276 mm) Maximum ground
clearance (ON&OFFROAD
package)
12.0 in
(306 mm) Vehicle data
453Technical data Z

All models (except for
AMG vehicles)
Minimum ground
clearance
7.9 in
(201 mm) Turning radius
40.7 ft
(12.40 m) Maximum roof load
220 lb
(100 kg) Model (except AMG
vehicles) Vehicle
length GL 450 4MATIC
GL 350 BlueTEC 4MATIC
201.6 in
(5120 mm) GL 550 4MATIC
202.6 in
(5146 mm) AMG vehicles
Vehicle length
202.6 in
(5146 mm) Vehicle width including
exterior mirrors
84.3 in
(2141 mm) Vehicle width without
exterior mirrors
78.0 in
(1982 mm) Maximum vehicle height
74.9 in
(1902 mm) Minimum vehicle height
72.4 in
(1839 mm) Wheelbase
121.1 in
(3075 mm) Maximum ground
clearance
9.8 in
(249 mm) Minimum ground
clearance
7.4 in
(188 mm) Turning radius
40.8 ft
(12.45 m) Maximum roof load
220 lb
(100 kg) Vehicle data for off-road driving
Fording depth
:
Fording depth Fording
depth Vehicles without the
ON&OFFROAD package
Raised level 20 in
(50 cm) Vehicles with the
ON&OFFROAD package
Off-road level 3 23.6 in
(60 cm) Off-road level 2 20 in
(50 cm) Off-road level 1 20 in
(50 cm) AMG vehicles
20 in
(50 cm) For more information about off-road fording,
see (Y
page 195). 454
Vehicle data for off-road drivingTechnical data

Approach/departure angle
All vehicles (except AMG vehicles and
vehicles with AMG bodystyling) :
: ;
;
Vehicles without the
ON&OFFROAD package
Highway level 25° 20°
Raised level 30° 25°
Vehicles with the
ON&OFFROAD package
Highway level 25° 20°
Off-road level 1 28° 23°
Off-road level 2 30° 25°
Off-road level 3 33° 27°
Vehicles with AMG bodystyling
: : ;
;
Vehicles without the
ON&OFFROAD package
Highway level 20° 20°
Raised level 24° 24°
Vehicles with the
ON&OFFROAD package
Highway level 20° 20°
Off-road level 1 22° 22° : : ;
;
Off-road level 2 24° 24°
Off-road level 3 26° 26°
AMG vehicles
:
: ;
;
Highway level (in sports
mode with the AMG
adaptive suspension
system activated) 19° 19°
Raised level 23° 22°
For further information about approach/
departure angles, see (
Ypage 200). Maximum gradient-climbing
capability
Note that the vehicle's gradient-climbing
capability depends on the off-road conditions
and the road surface conditions.
Vehicles with the ON&OFFROAD
package: the maximum gradient climbing
ability is 100% when the LOW RANGE off-road
gear is selected.
Vehicles without the ON&OFFROAD
package: the maximum gradient climbing
ability is 80%.
Accelerate carefully and make sure that the
wheels do not spin when driving on steep
terrain.
i If the load on the front axle is reduced
when pulling away on a steep uphill slope,
the front wheels have a tendency to spin.
4ETS recognizes this and brakes the
wheels accordingly. The rear wheel torque
is increased, making it easier to drive off.
For further information about the maximum
gradient climbing ability, see (Y page 200). Vehicle data for off-road driving
455Technical data Z

Trailer tow hitch
Mounting dimensions
! If you have a trailer tow hitch retrofitted,
changes to the cooling system and drive
train may be necessary, depending on the
vehicle type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the
chassis frame. Anchorage points for the trailer tow hitch
(example)
: Anchorage points
; Rear axle center line 456
Trailer tow hitchTechnical data

Trailer loads
Trailer loads, trailer drawbar noseweights and axle loads Missing values were not available at time of going to print.
All models (except
GL 63 AMG 4MATIC) Permissible trailer load, unbraked
Permissible trailer load, braked (at a minimum gradient-
climbing capability of 12% from a standstill)
7500 lbs (3402 kg)
Maximum drawbar noseweight (the drawbar
noseweight is not included in the trailer load)
600 lbs (272 kg)
Permissible rear axle load when towing a trailer
3970 lbs (1800 kg)
GL 63 AMG 4MATIC
Permissible trailer load, unbraked
Permissible trailer load, braked (at a minimum gradient-
climbing capability of 12% from a standstill)
7165 lbs (3250 kg)
Maximum drawbar noseweight (the drawbar
noseweight is not included in the trailer load)
309 lbs (140 kg)
Permissible rear axle load when towing a trailer
4189 lbs (1900 kg)
The actual noseweight may not be higher than the value which is given. The value can be found
on the trailer tow hitch or trailer identification plates. The lowest weight applies.
The maximum permissible trailer drawbar noseweight is the maximum weight with which the
trailer drawbar can be loaded. Limit for Mercedes-Benz-approved trailer couplings.
Ball position Ball position of the ball coupling When choosing a ball coupling, the
dimensions stated in the illustration must not
be exceeded. Trailer tow hitch
457Technical data Z

458