Page 291 of 309

Notes on fuel consumption
The vehicle will use more fuel than usual in
the following situations:
R at very low temperatures
R in urban traffic
R on short trips
R when towing a trailer
R in mountainous terrain
i Only for certain countries: the respective
current consumption and emission values
of your vehicle can be found in the COC
papers (EC CERTIFICATE OF CONFORM-
ITY). These documents are supplied when
the vehicle is delivered.
The consumption figures for vehicles falling
under the EURO4 standard have been
determined in accordance with EU Direc-
tive 80 /1268 /EEC while figures for vehi-
cles falling under the EURO5 standard have
been determined in accordance with Reg-
ulation (EC) No. 715 / 2007, in each case
based on the currently applicable version.
The values do not refer to a specific vehicle.
Deviations from these values may occur
under normal operating conditions.
! Do not use any special additives, as they
can cause malfunctions and engine dam-
age. Damage resulting from the use of such
additives is not covered by the Mercedes-
Benz implied warranty. H
Environmental note
CO 2(carbon dioxide) is the gas which scien-
tists believe to be principally responsible for
global warming (the greenhouse effect). Your
vehicle's CO 2emissions are directly related to
fuel consumption and therefore depend on:
R efficient use of the fuel by the engine
R driving style
R other non-technical factors, such as envi-
ronmental influences or road conditions You can minimise your vehicle's CO
2emis-
sions by driving carefully and having it serv-
iced regularly. AdBlue
®
i For BlueTEC vehicles only.
AdBlue ®
is a non-flammable, non-toxic, col-
ourless and odourless water-soluble fluid.
! Only use AdBlue ®
compliant with
ISO 22241. The use of special additives is
not permitted.
! Surfaces, such as carpets or paintwork,
which come into contact with AdBlue ®
while refilling should be rinsed immediately
with plenty of water. Immediately after
spilling, remove AdBlue ®
using a damp
cloth and cold water. If AdBlue ®
has
already crystallised, use a sponge and hot
water to clean it off. AdBlue ®
residues crys-
tallise after a certain period of time and soil
the affected surfaces.
High outside temperatures If AdBlue
®
is heated to above 50 † for an
extended period of time, e.g. due to direct
sunlight on the AdBlue ®
tank, AdBlue ®
may
start to decompose. Ammonia vapours may
develop as a result. G
Risk of injury
Ammonia vapours may escape if the
AdBlue ®
tank cap is opened at high tempera-
tures. Ammonia vapours have a pungent
odour and are particularly irritating to the
skin, to mucous membranes and to the eyes.
You may experience a burning sensation in
your eyes, nose and throat, as well as cough-
ing and watering of the eyes.
Do not inhale ammonia vapours. 288
Service products and capacitiesTechnical data
X164_AKB; 2; 3, en-GB
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Page 299 of 309

Tyres
i BA: Both axles GL 350 CDI 4MATIC
BlueEFFICIENCY /
GL 350 BlueTEC GL 450 4MATIC /
GL 500 4MATIC /
GL 450 CDI 4MATIC
18" BA
All-weather tyres
44
,45 265/60 R18 110 H
M+S –
All-terrain tyres
for
44, 46 265/60 R18 110 H
M+S –
Winter tyres
44 265/60 R18 110 H
M+S
i –
Light-alloy wheels
8J x 18 H2 ET53 –
19" BA
Summer tyres
47 275/55 R19 111 V 275/55 R19 111 V
All-terrain tyres
46, 47 275/55 R19 111 H
M+S 275/55 R19 111 H
M+S
Winter tyres
265/55 R19 109 H
M+S
i 265/55 R19 109 H
M+S
i Light-alloy wheels
8.5 J x 19 H2 ET56 8.5 J x 19 H2 ET56
20" BA
Summer tyres
47 275/50 R20 109 W 275/50 R20 109 W
All-weather tyres
47, 48 275/50 R20 109 H
M+S MOExtended –
Light-alloy wheels
8.5 J x 20 H2 ET56 8.5 J x 20 H2 ET56
44
Not in conjunction with Code 845 (3rd row of seats, electrically folding).
45 All-season tyres with M+S certification. Only certain tyre brands are approved. Ask your Mercedes-Benz
Service Centre for information.
46 All-terrain tyres for retrofitting. Only certain tyre brands are approved. Ask your Mercedes-Benz Service
Centre for information.
47 Snow chains not permitted.
48 Tyres with run-flat characteristics and only in combination with an activated tyre pressure loss warning
system or tyre pressure monitor*. 296
Tyres and wheelsTechnical data
* optional
X164_AKB; 2; 3, en-GB
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Page 300 of 309

AMG equipment*
All models
21" BA
All-weather tyres
47, 49 295/40 R21 111V XL
Light-alloy wheels
10J x 21 H2 ET37
Spare wheel*
Your vehicle may be equipped with TIREFIT, a "Minispare" emergency spare wheel* or a spare
wheel*, depending on the country, the engine and the wheels fitted.
i The GL 350 BlueTEC model is not equipped with a "Minispare"/collapsible emergency
spare wheel*.
! The maximum tyre pressure given in the table on the inside of the fuel filler flap must be
set for the spare wheel*. "Minispare" emergency spare wheel*
50 GL 450 4MATIC / GL 500 4MATIC /
GL 350 CDI 4MATIC BlueEFFICIENCY / GL 450 CDI 4MATIC
19" Tyres
T 165/90 – 19 119 M
Tyre pressure
4.2 bar
Wheels
4.5B x 19 ET 40
Trailer coupling*
Mounting dimensions
G
Risk of accident
Only have a trailer coupling retrofitted at a
qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required. Mercedes-Benz
recommends that you use a Mercedes-Benz
Service Centre for this purpose. In particular,
work relevant to safety or on safety-related
systems must be carried out at a qualified
specialist workshop. !
If you have a trailer tow hitch retrofitted,
changes to the cooling system may be nec-
essary, depending on the vehicle type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the chas-
sis frame.
47 Snow chains not permitted.
49 The use of these tyres alters the vehicle width to 1954 mm.
50 Snow chains not permitted. Trailer coupling*
297Technical data
* optional
X164_AKB; 2; 3, en-GB
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