2018 MERCEDES-BENZ GLS SUV Owner's Manual

The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It is responsible for
the following:
Ranti-corrosion protection
Rantifreeze protection
Rraising 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 antifreeze concentrate/corrosion inhibitor
concentration in the engine cooling system
should:
Rbe at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †).
Rnot exceed 55% (antifreeze protection down
to -49 ‡[-45 †]) .Otherwise ,hea twill no tbe
dissipated as effectively.
Mercedes-Ben zrecommends an antifreeze/
corrosion inhibitor concentrat ein accordance
wit hMB Specification sfo rServic eProducts
310.1.
iWhe nth evehicle is first delivered, it is filled
wit h a coolan tmixture that ensures adequat e
antifreez ean danti-corrosio nprotection .
iThe coolan tis checke dat specifie dintervals
at aqualifie dspecialis tworkshop .
Filling capacities
ModelCapacity
Mercedes ‑AMG
vehiclesApprox .11.9 US qt
(11. 3l)
GLS 350 d4MATICApprox .12.2 US qt
(11. 5l)
GLS 550 4MATICApprox .12.0 US qt
(11. 4l)
All other modelsApprox .10.3 US qt
(9.7 l)
Windshield washer syste m
Importan tsafet ynotes
GWARNING
Windshield washer concentrat ecould ignit eif
it come sinto contact wit hhot engin ecompo-
nent sor th eexhaus tsystem. There is aris kof
fir ean dinjury.
Mak esur ethat no windshield washer con-
centrat eis spilled next to th efiller neck .
!Only MB SummerFit an dMB WinterFit
washer fluid should be mixed together .The
spray nozzles may otherwise becom e
blocked.
Do no tuse distilled or de-ionized water .Other -
wise ,th elevel sensor may giv e afalse reading.
Whe nhandlin gwasher fluid, observe th eimpor -
tant safet ynote son servic eproducts
(
Ypage 386).
At temperature sabov efreezing:
XFill th ewasher fluid reservoir wit h amixture of
water an dwindshield washer fluid, e.g. MB
SummerFit .
Ad d 1 partMB SummerFit to 10 0parts water .
At temperature sbelow freezing:
XFill th ewasher fluid reservoir wit h amixture of
water an dwasher fluid, e.g. MB WinterFit .
Fo rth ecorrec tmixin gratio refe rto th einfor-
mation on th eantifreez ereservoir.
iAd dwindshield washer fluid, e.g. MB Sum -
merFit or MB WinterFit ,to th ewasher fluid all
year rou
nd.
Climat econtro lsyste m refrigerant
Important safety notes
The climate control system of your vehicle is fil-
led 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
Service products and filling capacities391
Technical data
Z

R-134arefrigerant. Otherwise, th eclimat e
control system may be damaged.
Service work, suc has refillin gwit hrefrigeran tor
replacing component parts, may only be carrie d
out by aqualified specialist workshop. All appli-
cable regulations, as well as SA Estandard J639,
mus tbe adhered to .
Always hav ewor kon th eclimat econtrol system
carrie dout at aqualified specialist workshop.
Refrigerant instruction label
Example: refrigeran tinstruction label
:
Warning symbol
;Refrigerant filling capacit y
=Applicable standards
?PAGoil part number
AType of refrigeran t
Warning symbol :advises you about :
RPossibledanger s
RHaving servic ewor kcarrie dout at aqualified
specialist workshop
Filling capacities
RefrigerantCapacit y
All models45.9±0. 4oz
(1300 ±10 g)
PAG oilCapacity
All models3.9 ± 0.4 oz
(110 ± 10 g)
Vehicle data
General notes
Please note that for the specified vehicle data:
Rthe heights specified may vary as a result of:
-tires
-load
-condition of the suspension
-optional equipment
Roptional equipment reduces the maximum
payload.
Observe the information relating to level con-
trol:
RAIRMATIC package (Ypage 190)
ROffroad Engineering package (Ypage 220)
Dimensions and weights
Missing values were not available at time of
going to print.
Model:
Opening height
;
Max.
headroom
Mercedes-
AMG vehicles
392Vehicle data
Technical data

All othermod-
els with::
Opening height
;
Max.
headr oom
AIRMATIC
package83.9in-
86.9 in
(2132 mm -
2207 mm )76.1 in-
79.1 in
(1934 mm -
2009 mm )
ON&OFFROAD
package83.9 in - 88.1 in
(2132 mm -
2237 mm )76.1 in-
80.3 in
(1934 mm -
2039 mm )
Mercedes‑AMG vehicles
Vehicle length203.2 in
(5162 mm)
Vehicle width including
exterior mirrors
Vehicle width without exte-
rior mirrors78.0 in
1982 mm
Vehicle height72.9 in
1850 mm
Wheelbase121.1 in
3075 mm
Maximum ground clear-
ance
Minimum ground clear-
ance7.8 in
(198 mm)
Turning radius40.7 ft
(12.40 m)
Maximum roof load220 lbs
(100 kg)
All other models
Vehicle length202.0 in
(5130 mm)
Vehicle width including
exterior mirrors84.3 in
(2141 mm)
Maximum vehicle height
(AIRMATIC package)75.2 in
(1910 mm)
All other models
Maximum vehicle height
(ON&OFFROAD package)76.4 in
(1940 mm)
Minimum vehicle height72.8 in
(1850 mm)
Wheelbase121.1 in
(3075 mm)
Maximum ground clear-
ance (AIRMATIC package)10.9 in
( 276 mm)
Maximum ground clear-
ance (ON&OFFROAD pack-
age)12.0 in
(306 mm)
Minimum ground clear-
ance7.9 in
(201 mm)
Turning radius40.7 ft
(12.40 m)
Maximum roof load220 lb
(100 kg)
Vehicle data for off-road driving
Fording depth
!
The depth of water must not exceed the
value specified in the table. Note that the
possible fording depth is less in flowing water.
:Fording depth
On vehicles with the AIRMATIC package or the
Off-Road Engineering package, loads up to the
maximum permissible load have no influence on
fording capability.
Missing values were not available at the time of
going to print.
Vehicle data for off-road driving393
Technical data
Z

Fordingdepth
Vehicles without the Off-
road Engineering package
Raised level19.7 in
(50 cm)
Vehicles with the Off-Road
Engineering package
Off-road level 119.7 in
(50 cm)
Off-road level 219.7 in
(50 cm)
Off-road level 323.6 in
(60 cm)
Mercedes-AMG vehicles
For more information about off-road fording, see
(Ypage 169).
Approach/departure angle
All vehicles (except vehicles with AMG body-
styling)
:;
Vehicles without the Off-
road Engineering package
Normal level25°20°
Raised level30°25°
Vehicles with the Off-
Road Engineering pack-
age
:;
Normal level25°20°
Off-road level 128°23°
Off-road level 230°25°
Off-road level 333°27°
Mercedes-AMG vehicles
Normal level (in sport mode
with AMG adaptive sport
suspension system activa-
ted)19°19°
Raised level22°21°
Vehicles with AMG bodystyling
:;
Vehicles without the Off-
road Engineering package
Normal level22°20°
Raised level27°25°
Vehicles with the Off-
Road Engineering pack-
age
Normal level22°20°
Off-road level 125°23°
Off-road level 227°25°
Off-road level 329°27°
For further information about approach/depar-
ture angles, see (Ypage 173).
Maximum gradient-climbing capabil-
ity
Note that the vehicle's gradient-climbing capa-
bility 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 pack-
age: the maximum gradient climbing ability is
80 %.
394Vehicle data for off-road driving
Technical data

Accelerate carefully and make sure that the
wheels do not spin when driving on steep ter-
rain.
iIf 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 recog-
nizes this and brakes the wheels accordingly.
The rear wheel torque is increased, making it
easier to drive off.
For further information about the maximum gra-
dient climbing ability, see (
Ypage 173).
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
;Rear axle center line
Trailer loads
Permissible trailer load, braked (at a
minimum gradient-climbing capability
of 12% from a standstill)
All models7500 lbs (3402 kg)
Maximum drawbar noseweight (the
drawbar noseweight is not included in
the trailer load)
All models600 lbs (272 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 nose-
weight is the maximum weight with which the
trailer drawbar can be loaded. Limit for
Mercedes-Benz-approved trailer couplings.
Gross rear axle weight rating when tow-
ing a trailer
All models3968 lbs (1800 kg)
Ball position of the ball coupling
:7.5"
;2"
=2.75"
When choosing a ball coupling, the dimensions
stated in the illustration must not be exceeded.
Trailer tow hitch395
Technical data
Z

396