2014 MERCEDES-BENZ GLK-Class tow

R
only use a spare wheel or emergency spare
wheel of a different size briefly.
R do not switch ESP ®
off.
R have a spare wheel or emergency spare
wheel of a different size replaced at the
nearest qualified specialist workshop.
Observe that the wheel and tire dimensions
as well as the tire type must be correct.
When using an emergency spare wheel or
spare wheel of a different size, you must not
exceed the maximum speed of 50 mph
(80 km/h).
Snow chains must not be mounted on
emergency spare wheels. General notes
You should regularly check the pressure of
the emergency spare wheel, particularly prior
to long trips, and correct the pressure as
necessary (Y page 334). The applicable value
is found on the wheel or under "Technical
data" ( Ypage 359).
i When you are driving with the collapsible
spare wheel mounted, the tire pressure
loss warning system or the tire pressure
monitor cannot function reliably. Only
restart the tire pressure loss warning
system/the tire pressure monitor when the
damaged wheel has been replaced with a
new wheel.
Vehicles with tire pressure monitor:
after mounting an emergency spare wheel,
the system may still display the tire
pressure of the removed wheel for a few
minutes. The value displayed for the
mounted emergency spare wheel is not the
same as the current tire pressure of the
emergency spare wheel.
An emergency spare wheel may also be
mounted against the direction of rotation.
Observe the time restriction on use as well as
the speed limitation specified on the
emergency spare wheel. Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel. Collapsible spare wheel
Removing the collapsible emergency
spare wheel The collapsible spare wheel can be found in
the stowage well under the cargo
compartment floor.
X
Lift the cargo compartment floor up
(Y page 281). X
Remove stowage compartment 0043.
X Turn retaining screw 0044counter-clockwise
and remove it.
X Remove collapsible spare wheel 0087.
X Take the wheel bolts for the collapsible
spare wheel from the vehicle tool kit.
For further information on changing a wheel
and mounting the spare wheel, see
(Y page 314).
Inflating the collapsible spare wheel !
Inflate the collapsible spare wheel using
the tire inflation compressor before
lowering the vehicle. The wheel rim could
otherwise be damaged. 362
Emergency spare wheelWheels and tires

X
Pull connector 0085and the air hose out of
the housing.
X Remove the cap from the valve on the
collapsible spare wheel.
X Screw union nut 0043on the air hose onto the
valve.
X Make sure on/off switch 0083of the tire
inflation compressor is set to 0.
X Insert plug 0085into the socket of the
cigarette lighter (Y page 284) or into a 12 V
power socket (Y page 284) in your vehicle.
X Make sure that the SmartKey is in position
1(Y page 145) in the ignition lock.
X Press on/off switch 0083on the tire inflation
compressor to I.
The tire inflation compressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge 0087.
! Do not operate the tire inflation
compressor for longer than eight minutes
at a time without a break. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down.
X Inflate the tire to the specified tire
pressure.
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.
X When the specified tire pressure has been
reached, press on/off switch 0083on the
electric air pump to 0.
The tire inflation compressor is switched
off. X
Turn the SmartKey to position 0in the
ignition lock.
X If the tire pressure is higher than the
specified pressure, press pressure release
button 0044until the correct tire pressure has
been reached.
X Unscrew union nut 0043on the air hose from
the valve.
X Screw the cap onto the valve of the
collapsible spare wheel again.
X Stow plug 0085and the air hose in the lower
section of the blower housing.
X Stow the tire inflation compressor in the
vehicle.
Stowing a used collapsible spare wheel Take the following steps to stow a used
collapsible spare wheel. Otherwise, the
collapsible spare wheel will not fit in the spare
wheel well. Mercedes-Benz recommends that
you have this work carried out at a qualified
specialist workshop.
!
Only place the collapsible spare wheel in
the vehicle when it is dry. Otherwise,
moisture may get into the vehicle.
X Remove the valve extractor from the
vehicle tool kit.
X Unscrew the valve cap from the valve.
X Unscrew the valve insert from the valve and
release the air.
i Fully deflating the tires can take a few
minutes.
X Screw the valve insert back into the valve.
X Screw the valve cap back on.
X Place the valve extractor back into the
vehicle tool kit.
X Stow the collapsible spare wheel in the
emergency spare wheel well under the
cargo compartment and fasten in place. Emergency spare wheel
363Wheels and tires Z

Useful information
............................366
Information regarding technical
data .................................................... 366
Warranty ............................................ 366
Identification plates .........................366
Service products and filling capaci-
ties ..................................................... 367
Vehicle data ...................................... 375
Vehicle data for off-road driving .....375
Trailer tow hitch ................................ 376 365Technical data

Approach/departure angle
Front approach/departure angle
0043is a
maximum of 22.5° and rear approach/
departure angle 0044is a maximum of 24.3 °.
For further information about approach/
departure angles, see ( Ypage 173). Maximum gradient-climbing
capability
Note that the vehicle's gradient-climbing
capability depends on the off-road conditions
and the road surface conditions.
The maximum gradient climbing capability is
70%.
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 173).Trailer tow hitch
Mounting dimensions
! If you have a trailer tow hitch retrofitted,
changes to the engine cooling system and
drive train may be necessary, depending on
the vehicle type. Anchorage points for the trailer tow hitch
(example)
0043
Anchorage points
0044 Rear axle center line Trailer loads
Missing values were not available at time of
going to print. All models
Permissible trailer load,
unbraked
Permissible trailer load,
braked
21 3500 lbs
(1588 kg) Maximum drawbar
noseweight
22 280 lbs
(127 kg) Permissible rear axle
load when towing a trailer
3108 lbs
(1410 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
21 At a minimum gradient-climbing capability of 12% from a standstill.
22 The drawbar noseweight is not included in the trailer load. 376
Trailer tow hitchTechnical data

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. Trailer tow hitch
377Technical data Z