Page 375 of 381

The coolant is checked at every maintenance
interval at a qualified specialist workshop.
i When the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion. Windscreen and headlamp cleaning
system
Important safety notes G
WARNING
Windscreen washer fluid/antifreeze is highly
flammable. Avoid spilling windscreen washer
fluid/antifreeze on hot engine components as
it can ignite and burn. Severe burns could be
the result.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
! Only the washer fluids SummerFit and
WinterFit can be mixed. Otherwise, the
spraying nozzles could become blocked.
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Sum-
merFit.
Mix 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 Winter-
Fit.
Adapt the mixing ratio to the outside temper-
ature.
R Down to Ò10 †: mix 1 part MB WinterFit to
2 parts water.
R Down to Ò20 †: mix 1 part MB WinterFit to
1 part water.
R Down to Ò29 †: mix 2 parts MB WinterFit
to 1 part water.
i Add washer fluid concentrate, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round. Vehicle data
General notes
Please note that for the specified vehicle
data:
R the heights specified may vary as a result
of:
-tyres
- load
- condition of the suspension
- optional equipment
R The indicated ground clearance refers to
the vehicle when loaded and ready to drive,
including:
-driver (68 kg)
- all fluids (fuel tank 100% full)
R Items of optional equipment increase the
unladen weight and reduce the maximum
payload. The unladen weight is specified in
accordance with EC directive and includes:
- driver (68 kg)
- luggage (7 kg)
- all fluids (fuel tank 90% full) 372
Vehicle dataTechnical data
Page 376 of 381

R
vehicle-specific weight information can be
found on the vehicle identification plate
(Y page 364).
R only for certain countries: you can find vehi-
cle-specific vehicle data in the COC docu-
ments (CERTIFICATE OF CONFORMITY).
These documents are delivered with your
vehicle. Dimensions and weights
Model : :
Open-
ing height ;
;
Maximum
headroom All models
2087 mm 1955 mm
Missing values were not available at the time
of going to print. All models
Vehicle length
4525 mm
Vehicle width including
exterior mirrors
2016 mm
Vehicle width excluding
exterior mirrors
1840 mm
Vehicle height
1689 mm
Wheelbase
2755 mm
Maximum roof load
75 kg GLK 300 4MATIC
GLK 300 4MATIC BlueEF-
FICIENCY
Unladen weight
1845 kg
Ground clearance
202 mm
GLK 350 4MATIC BlueEF-
FICIENCY
Unladen weight
Ground clearance
202 mm
GLK 200 CDI BlueEFFI-
CIENCY
GLK 220 CDI BlueEFFI-
CIENCY
Unladen weight, manual
transmission
1825 kg
Unladen weight, auto-
matic transmission
1845 kg
Ground clearance
188 mm
GLK 220 BlueTEC 4MATIC
GLK 250 BlueTEC 4MATIC
GLK 350 CDI 4MATIC
Unladen weight
1880 kg
Ground clearance
188 mm
Trailer tow hitch
Mounting dimensions
! 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. Trailer tow hitch
373Technical data Z
Page 377 of 381
Example: anchorage points for the trailer tow hitch
: Anchorage points
; Overhang dimension
= Rear axle centre line
For trailer tow hitches fitted at the factory, the
overhang dimension including protective cov-
ering is 1,058 mm. Trailer loads
All models
Permissible trailer load,
unbraked
750 kg
Permissible trailer load,
braked
14 2000 kg
Maximum drawbar nose-
weight
15 80 kg
Permissible rear axle
load when towing a trailer
1410 kg
14
At a minimum gradient-climbing capability of 12% from a standstill.
15 The drawbar noseweight is not included in the trailer load. 374
Trailer tow hitchTechnical data
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