headlamp MERCEDES-BENZ GL-Class 2012 X164 Owner's Guide

Display messagesPossible causes/consequences and M Solutionsb
Standing Lamp
Front Left
or Standing Lamp
Front RightThe front left or front right standing lamp is defective.XCheck whether you are permitted to change the bulb yourself
( Y page 123).
or
XVisit a qualified specialist workshop.b
Reverse Lamp Left
or Reverse Lamp
RightThe left or right-hand backup lamp is defective.XCheck whether you are permitted to change the bulb yourself
( Y page 123).
or
XVisit a qualified specialist workshop.b
Marker Lamp Front
Left or Marker Lamp
Front RightThe left or right front side marker lamp is defective.XCheck whether you are permitted to change the bulb yourself
( Y page 123).
or
XVisit a qualified specialist workshop.b
Tail Lamp Left
or Tail Lamp RightThe left or right-hand tail lamp is defective.XCheck whether you are permitted to change the bulb yourself
( Y page 123).
or
XVisit a qualified specialist workshop.b
Daytime Running
Light Left
or Daytime Running
Light RightThe left or right-hand daytime running lamp is defective.XCheck whether you are permitted to change the bulb yourself
( Y page 123).
or
XVisit a qualified specialist workshop.b
Active Headlamps
InoperativeThe active light function is defective.XVisit a qualified specialist workshop.Display messages243On-board computer and displaysZ

damage to the engine or the catalytic
converter. Have excess oil siphoned off.
For further information on engine oil, see
( Y page 375).XReplace cap : on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
Checking and adding other service
products
Checking the coolant level
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
XTurn the SmartKey to position
2 (Y page 149) in the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y page 149).XCheck the coolant temperature gauge in
the multifunction display.
The coolant temperature must be below
158 ‡ (70 †).GWARNING
In order to avoid any potentially serious burns:
R use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
R do not remove the pressure cap on the
coolant reservoir if the coolant temperature
is above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
coolant reservoir contains hot fluid and is
under pressure.
R using a rag, slowly turn the cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.XSlowly turn cap : half a turn counter-
clockwise and allow excess pressure to
escape.XTurn cap : further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant is approximately 0.6 in
(1.5 cm) above marker bar = in the filler
neck when warm, there is enough coolant
in coolant expansion tank ;.XIf necessary, add coolant that has been
tested and approved by Mercedes-Benz.XReplace cap : and turn it clockwise as far
as it will go.
For further information on coolant, see
( Y page 376).
Windshield washer system and
headlamp cleaning system
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
i Vehicle components and their service
products must match. You should,
Engine compartment303Maintenance and careZ

therefore, only use products that have been
tested and approved by Mercedes-Benz.
Information on tested and approved
products can be obtained at any authorized
Mercedes-Benz Center or on the Internet at
http://www.mbusa.com (USA only).GWARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
! At temperatures below freezing: always
fill the washer fluid reservoir with a mix of
water and windshield washer concentrate
(e.g. MB WinterFit). There is otherwise a
risk of damaging the windshield washer
system/headlamp cleaning system.
! Only use washer fluid concentrate which
is suitable for plastic lenses. Unsuitable
washer fluid concentrate could damage the
plastic lenses of the headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
i Add windshield washer concentrate, e.g.
MB SummerFit, to the washer fluid all year
round.
Example: washer fluid reservoir
XMix the windshield washer fluid in a
container beforehand.XAt temperatures above freezing: fill the
washer fluid reservoir with a mix of waterand windshield washer concentrate (e.g.
MB SummerFit).XAt temperatures below freezing: fill the
washer fluid reservoir with a mix of water
and windshield washer concentrate (e.g.
MB WinterFit). Adapt the mixing ratio to the
outside temperature. For information on
the mixing ratio ( Y page 377).XTo open: pull cap : upwards by the tab.XAdd the premixed washer fluid.XTo close: press cap : onto the filler neck
until it engages.
Brake fluid level
! If you notice that the brake fluid level in
the brake fluid reservoir has fallen to the
MIN mark or less, check the brake system
immediately for leaks. Also check the
thickness of the brake linings. Contact a
qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center
immediately.
Do not add brake fluid. This does not
correct the error.
Only check the brake fluid level when the
vehicle is stationary and on a level surface.
The brake fluid level is correct if it is between
MIN marking ; and MAX marking : on the
brake fluid reservoir.
304Engine compartmentMaintenance and care

Vehicle modelCapacityFuel, coolant,
lubricants etc.Air-
conditioning
systemAll models—Refrigerant R134a
and special PAG
lubricant (never
R 12)Windshield/
headlamp
cleaning
systemAll models7.6 US qt (7.2 l)MB windshield
washer
concentrate 48
( Y page 377)
Mixing ratio for
washer fluid
( Y page 377)Fuel
Important safety notesGWARNING
Gasoline and diesel fuels are highly flammable
and poisonous. They burn violently and can
cause serious injury.
Never allow sparks, flames or smoking
materials near gasoline or diesel fuel!
Turn off the engine before refueling.
Whenever you are around gasoline or diesel
fuel, avoid inhaling fumes and any skin or
clothing contact. Extinguish all smoking
materials.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging your
health.
Premium-grade unleaded gasoline
! To ensure the longevity and full
performance of the engine, only premium-
grade unleaded gasoline must be used.
If no premium-grade unleaded gasoline is
available and regular unleaded gasoline
must be used, observe the following
precautions:
R only fill the fuel tank to half full with
regular unleaded gasoline and fill the rest
with premium-grade unleaded gasoline
as soon as possible.
R do not drive at the maximum speed.
R avoid sudden acceleration.
R when the vehicle is carrying a light load,
e.g. two passengers without luggage, do
not allow the engine to rev above
3000 rpm.
R when the vehicle is fully loaded or in
mountainous terrain, do not depress the
accelerator pedal further than ⅔ of the
pedal travel.
Fuel requirements
Gasoline engines
Use only premium-grade unleaded gasoline.
The octane number should be at least 91.
Details can be found on the gas pump. The
octane number is the average value of the
Research Octane Number (RON) and the
48 Mixed with water or premixed washer fluid with antifreeze protection.372Service products and capacitiesTechnical data

Windshield/headlamp cleaning
systemGWARNING
Washer solvent/antifreeze is highly
flammable. Do not spill washer solvent/
antifreeze on hot engine parts, because it may
ignite and burn. You could be seriously
burned.
Use MB SummerFit windshield washer
concentrate at temperatures above freezing:
XMix 1 part MB SummerFit with 100 parts
water.
Use MB WinterFit windshield washer
concentrate at temperatures below freezing:
XAt temperatures down to 14 ‡(Ò 10 †): mix
1 part MB WinterFit with 2 parts water.XAt temperatures down to Ò 4 ‡( Ò 20 †): mix
1 part MB WinterFit with 1 part water.XAt temperatures down to
Ò 20.2 ‡(Ò 29 †): mix 2 parts MB WinterFit
with 1 part water.
! Only SummerFit and WinterFit can be
mixed. Otherwise, the jets could become
blocked.
Vehicle data
Vehicle data, GL 350 BlueTEC
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
Vehicle dimensions, GL 350 BlueTECVehicle length201.1 in (5108 mm)Vehicle width
including exterior
mirrors85.4 in (2170 mm)Vehicle height72.4 - 75.6 in (1840 -
1920 mm) 4972.4 - 76.8 in (1840 -
1950 mm) 50Wheelbase121.1 in (3075 mm)Front track64.8 in (1645 mm)Rear track65.0 in (1650 mm)Ground clearance8.0 - 10.9 in (202 -
277 mm) 498.0 - 12.1 in (202 -
307 mm) 50Turning circle39.7 ft (12.1 m)Vehicle weight, GL 350 BlueTECMaximum roof
loadMaximum 198 lb
(90 kg)
Vehicle data, GL 450
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
49 Vehicles without Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.
50 Vehicles with Off-road Pro engineering package: the values vary depending on the level set for the vehicle
suspension.Vehicle data377Technical dataZ