Useful Information; Important Safety Notes; Operation - Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual

Operation

350

Useful information

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This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
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Read the information on qualified special-
ist workshops: (

Important safety notes

G WARNING
If wheels and tyres of the wrong size are used,
the wheel brakes or suspension components
may be damaged. There is a risk of accident.
Always replace wheels and tyres with those
that fulfil the specifications of the original part
(designation, manufacturer, model).
G
WARNING
A flat tyre severely impairs the driving, steer-
ing and braking characteristics of the vehicle.
There is a risk of accident.
Tyres without run-flat characteristics:
do not drive with a flat tyre.
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immediately replace the flat tyre with your
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emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tyres with run-flat characteristics:
pay attention to the information and warn-
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ing notices on MOExtended tyres (tyres
with run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Benz or are not being
used correctly can impair the operating
safety.
page 27).
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Before purchasing and using non-approved
accessories, visit a qualified specialist work-
shop and enquire about:
suitability
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legal stipulations
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factory recommendations
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Information on the dimensions and types of
wheels and tyres for your vehicle can be
found in the "Wheel/tyre combinations" sec-
tion ( page 357).
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Information on air pressure for the tyres on
your vehicle can be found:
on the tyre pressure label on the fuel filler
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flap
in the "Tyre pressure" section
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Modification work on the brake system and
wheels is not permitted, nor is the use of
spacer plates or brake dust shields. This inva-
lidates the general operating permit for the
vehicle.
Pay special attention to the country-specific
requirements for tyre approval. These
requirements can stipulate a specific tyre
type for your vehicle. Furthermore, the use of
certain tyre types in certain regions and areas
of operation can be highly beneficial. You can
find further information regarding tyres at
specialist tyre retailers, at qualified specialist
workshops or at any Mercedes-Benz Service
Centre.
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Further information on wheels and tyres
can be obtained at any qualified specialist
workshop.
Operation
Notes on driving
While driving, pay attention to vibrations,
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noises and unusual handling characteris-
tics, e.g. pulling to one side. This may indi-
cate that the wheels or tyres are damaged.
If you suspect that a tyre is defective,
reduce your speed immediately. Stop the
vehicle as soon as possible to check the