belt MERCEDES-BENZ GL 2012 Service Manual

Display messagesPossible causes/consequences and M Solutions?The engine fan is defective.XAt coolant temperatures under 248 ‡ (120 †), drive to the next
qualified specialist workshop.XAvoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.#The battery is not being charged.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronicsXPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.XOpen the hood.XCheck whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
XConsult a qualified specialist workshop.
If the poly-V-belt is OK:
XVisit a qualified specialist workshop.#
Battery /
Alternator Stop
VehicleThe battery is defective.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XEngage the parking brake.XConsult a qualified specialist workshop.4
Check engine oil
level at next
refuelingThe oil level is too low.XCheck the oil level ( Y page 301).XIf necessary, add engine oil ( Y page 302).XHave the engine checked for leaks if the engine oil needs to be
refilled more often than usual.
Information on approved engine oils can be obtained from any qualified specialist workshop
or on the Internet at http://www.mbusa.com (USA only).
! The oil level is too low. Avoid long journeys with too little engine oil. There is a risk of
engine damage.
The display messages and the corresponding symbol that indicate that the oil level is too
low must not be ignored.
246Display messagesOn-board computer and displays

Warning and indicator lamps in the instrument cluster
Seat belts
ProblemPossible causes/consequences and M Solutions7
After starting the
engine, the red seat
belt warning lamp lights
up for six seconds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.XFasten your seat belt ( Y page 55).7
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a
warning tone sounds
for up to six seconds.GRisk of injury
The driver's seat belt is not fastened.
XFasten your seat belt ( Y page 55).
The warning tone ceases.7
The red seat belt
warning lamp lights up
after the engine starts,
as soon as the driver's
or the front-passenger
door is closed.GRisk of injury
The driver or front passenger has not fastened their seat belt.
XFasten your seat belt ( Y page 55).
The warning lamp goes out.GRisk of injury
There are objects on the front-passenger seat.
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.258Warning and indicator lamps in the instrument clusterOn-board computer and displays

ProblemPossible causes/consequences and M Solutions7
The red seat belt
warning lamp flashes
and an intermittent
audible warning
sounds.GRisk of injury
The driver or front passenger has not fastened their seat belt. In
addition, you are driving faster than 15 mph (25 km/h) or you have
briefly driven faster than 15 mph (25 km/h).
XFasten your seat belt ( Y page 55).
The warning lamp goes out and the intermittent warning tone
ceases.GRisk of injury
There are objects on the front-passenger seat. In addition, you are
driving faster than 15 mph (25 km/h) or you have briefly driven
faster than 15 mph (25 km/h).
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases.
Safety systems
ProblemPossible causes/consequences and M Solutions$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.GRisk of accident
There is not enough brake fluid in the brake fluid reservoir.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XEngage the parking brake.XConsult a qualified specialist workshop immediately.XObserve the additional display messages in the multifunction
display.
Do not add brake fluid. This will not correct the malfunction.
GWARNING
Driving with the brake warning lamp illuminated can result in an accident. Have your brake system
checked immediately if the brake warning lamp stays on. Do not add brake fluid before checking
the brake system.
Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the
brake fluid catching fire. You can be seriously burned.
Warning and indicator lamps in the instrument cluster259On-board computer and displaysZ

XGuide seat belts ; under respective
clips :.
Folding the rear bench seat back
XPull release catch = upwards.XFold backrest ; backwards until it
engages, making sure not to trap the seat
belts while doing so.XFold seat cushion : backwards and push
until you hear it engage.XPull up and adjust the head restraints if
necessary ( Y page 102).Securing cargo
Cargo tie-down rings
Observe the following notes on securing
loads:
R secure the load using the cargo tie down
rings.
R do not use elastic straps or nets to secure
a load, as these are only intended as an
anti-slip protection for light loads.
R do not route tie downs across sharp edges
or corners.
R pad sharp edges for protection.
Footwell of the second row of seats
There is one cargo tie-down ring : in the
footwell behind the driver’s seat and one in
the footwell behind the front-passenger seat.
Cargo compartment
There are four cargo tie down rings : in the
cargo compartment.
272Stowage areasStowing and features

cargo compartment cover ; behind the
second row of seats.
Protective cap in the right-hand side trim on the
third row of seats
XPush in the top of the protective cap as
indicated by the arrow.
The protective cap folds out at the bottom.XRemove the lower cover from the side trim.
i Stow the protective caps in a safe place.
XWith the handle of the cargo compartment
pointing to the rear and button : facing
upwards, insert cargo compartment
cover ; into the recess of the side trim on
the left-hand side.XGuide cargo compartment cover ; in front
of the recess on the right.XPress button : and insert the right-hand
side section into the recess of the side trim.
Cargo net
Important safety notes
GWARNING
Make sure the cargo net is properly engaged
at top and bottom position and the tightening
belts are securely fastened.
Never use a damaged cargo net.
Always use cargo net when transporting
cargo. This helps to avoid personal injury from
smaller objects being thrown around in the
occupant compartment during a collision or
sudden maneuver.
The cargo net cannot prevent the movement
of large, heavier objects into the passenger
compartment in an accident. Such items must
be properly secured using the cargo tie-down
rings in the cargo compartment floor.
Passenger use of seats behind installed cargo
net is restricted because of the footwell being
taken up by the net.
It is particularly important to use a safety net
if the vehicle is loaded with small objects
above the level of the backrests. For safety
reasons, always use a cargo net when
transporting loads.
Preparing the cargo net
The cargo net can be used in two different
positions (behind the B-pillar or the C-pillar).
R The brackets behind B-pillar : are
required for the cargo compartment
enlargement ( Y page 270).
The corresponding cargo tie down rings to
tighten the net are located in the footwell
of the rear bench seat ( Y page 272).
R The brackets behind C-pillar ; are
required for the cargo compartment behind
the 2nd row of seats.
The corresponding cargo tie down rings for
tensioning the net are in the cargo
compartment or on the backrests of the
folded-down 3rd row of seats
( Y page 272).
274Stowage areasStowing and features

XUndo the two Velcro fasteners of the
safety-net stowage.XUnroll and unfold the cargo net.
The upper and lower guide rods must
engage audibly.
Attaching the cargo net
Cargo net attached behind the C-pillar
XInsert guide rod ; into retainer : in the
direction of the arrow.XSlide guide rod ; forwards into
retainer : in the direction of the arrow.
Tightening the cargo net
Seat belt reel holder behind the front seats
XInsert belt hook : into cargo tie-down
ring ; in the direction of the arrow.XPull tensioning strap = by the loose end in
the direction of the arrow until the cargo
net is tight.XAfter driving a short distance, check the
tension of the cargo net and retighten it if
necessary.Releasing the cargo net
Seat belt reel holder behind the front seats
XPull belt adjuster : upwards in the
direction of the arrow to reduce the tension
on the tensioning strap.XUnhook belt hook ; from cargo tie-down
ring =.
Detaching and storing the cargo net
XDetach guide rod ; from bracket :
( Y page 275).XPress the red button on the upper and lower
guide rods.XFold the cargo net and roll it up.XClose the two Velcro fasteners on the cargo
net holder.
EASY-PACK load-securing kit
Components and storage
The EASY-PACK load-securing kit allows you
to use your cargo compartment for a variety
of purposes. You can keep the EASY-PACK
load-securing kit in the bag supplied and store
it together with the telescopic rod under the
cargo compartment floor.
Stowage areas275Stowing and featuresZ

:Loading rails
Inserting the mounting elements into
the loading rail
You can slide mounting element ; in loading
rail : to various detents and secure it. These
detents are marked and positioned at 5-cm
intervals along loading rail :.
You can turn mounting element ; of loading
rail : to four positions:
&To lock the mounting element=To release the cargo tie-down ring, the
inertia reel or the telescopic rod;To remove the mounting elementBTo push the mounting element to the
next detentXTurn mounting element ; to ; .XInsert mounting element ; into loading
rail :.XTurn mounting element ; to & until
you feel it clearly engage in loading rail :.Inserting the cargo tie down rings into
the mountingGWARNING
Distribute the load on the cargo tie down rings
evenly. Please observe the loading guidelines.
XTurn mounting element ; in the loading
rail to =.XInsert cargo tie-down ring : into mounting
element ;.XTurn mounting element ; to & until
you feel it clearly engage in the loading rail.
Seat belt retractor
The inertia reel can be used to secure light
loads against the side wall of the cargo
compartment to prevent them from moving
around.
XInsert two mounting elements ; into a
loading rail.XTurn mounting elements ; in the loading
rail to =.276Stowage areasStowing and features

XWipe the plastic trim with a damp, lint-free
cloth, e.g. a microfiber cloth.XHeavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
The surface may change color temporarily.
Wait until the surface is dry again.
Cleaning the steering wheel and gear or
selector lever
XThoroughly wipe with a damp cloth or use
leather care agents that have been
recommended and approved by Mercedes-
Benz.
Cleaning genuine wood and trim
elements
XWipe the wooden trim and trim pieces with
a damp, lint-free cloth, e.g. a microfiber
cloth.XHeavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
! Do not use solvent-based cleaning agents
such as tar remover, wheel cleaners,
polishes or waxes. There is otherwise a risk
of damaging the surface.
! Do not use chrome polish on trim pieces.
The trim pieces have a chrome look but are
mostly made of anodized aluminum and
can lose their shine if chrome polish is
used. Use a damp, lint-free cloth instead
when cleaning the trim pieces.
If the chrome-plated trim pieces are very
dirty, you can use a chrome polish. If you
are unsure as to whether the trim pieces
are chrome-plated or not, consult an
authorized Mercedes-Benz Center.
Cleaning the seat covers
! Do not use microfiber cloths to clean
genuine leather, artificial leather or
Alcantara® covers. If used often, these can
damage the cover.
! Observe the following when cleaning:
R clean genuine leather covers carefully
with a damp cloth and then wipe the
covers down with a dry cloth. Make sure
that the leather does not become
soaked. It may otherwise become rough
and cracked. Only use leather care
agents that have been tested and
approved by Mercedes-Benz. You can
obtain these from a qualified specialist
workshop, e.g. a Mercedes-Benz Service
center.
R clean artificial leather covers with a cloth
moistened with a solution containing 1%
detergent (e.g. dish washing liquid).
R clean cloth covers with a microfiber cloth
moistened with a solution containing 1%
detergent (e.g. dish washing liquid). Rub
carefully and always wipe entire seat
sections to avoid leaving visible lines.
Leave the seat to dry afterwards.
Cleaning results depend on the type of
dirt and how long it has been there.
R clean Alcantara® covers with a damp
cloth. Make sure you wipe entire seat
sections to avoid leaving visible lines.
i Note that regular care is essential to
ensure that the appearance and comfort of
the covers is retained over time.
Cleaning the seat beltsXUse clean, lukewarm water and soap
solution.
! Do not clean the seat belts using chemical
cleaning agents. Do not dry the seat belts
by warming them above 176 ‡ (80 †) or
placing them in direct sunlight.
GWARNING
Do not bleach or dye seat belts as this may
severely weaken them. In a crash, they may
not be able to provide adequate protection.
Care311Maintenance and careZ