2009 MERCEDES-BENZ GL SUV coolant level

C
Calling up a fault see Display message .....................211
Care
Automatic car wash .......................201
Care products ................................ 201
Cleaning agents ............................. 201
Dashboard ..................................... 204
Display ........................................... 204
Exterior .......................................... 201
Headlamps ..................................... 203
High-pressure cleaners ..................202
Interior ........................................... 204
Paintwork ...................................... 202
Plastic trim .................................... 205
Reversing camera ..........................203
Seat covers .................................... 204
Sensors ......................................... 203
Steering wheel boss ......................204
Tail pipes ....................................... 203
Trailer tow hitch ............................. 203
Trim strips ..................................... 205
Wheels ........................................... 202
Windows ........................................ 202
Wiper blades .................................. 202
Wooden trim .................................. 205
Care products .................................... 201
CD player/CD changer Operating (on-board computer) .....101
Central locking
Automatic locking (on-board com-
puter) ............................................. 107
Key .................................................. 58
Central locking/unlocking button .....59
Central unlocking Key .................................................. 58
Centre console
Overview .......................................... 29
Changing a wheel
see Flat tyre
Checklist (off-road driving) ..............189
Child-proof locks Rear doors ....................................... 49
Children
in the vehicle ................................... 41
Restraint systems ............................ 41Child seat
Automatic recognition .....................43
Automatic recognition (malfunc-
tion) ............................................... 234
Child seat lock ................................ 47
Display message ............................ 216
ISOFIX .............................................. 47
On the front-passenger sea t............ 42
Recommendations ...........................46
Suitable positions ............................ 44
TopTether ........................................ 48
Child seat lock ..................................... 47
Cigarette lighter ................................ 163
Cleaning agents ................................. 201
Cleaning the sensors ........................203
Climate control Cooling with air dehumidification ..141
Misted up windows ........................146
Cockpit
Overview .......................................... 23
Collapsible wheel
Technical data ............................... 297
COMAND display
Cleaning ......................................... 204
Compass ............................................ 166
Display message ............................ 216
Constant headlamp mode
see Daytime driving lights ..............105
Consumption statistics (on-board
computer) .......................................... 110
Convenience closing ...........................87
Convenience opening ..........................87
Coolant Checking the level .........................177
Display mes-
sage ...................................... .219, 224
Mixture ratio .................................. 291
Temperature gauge ........................ 100
Cornering lights
Display message ............................ 225
Cruise control .................................... 117
Display message .................... 218, 219
Cup holder ......................................... 1536
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X
Press the VorU button to select the
standard display. Standard display
:
Trip meter
; Total distance
You can select the following functions in the
Standard display menu using the&or
* button:
R tyre pressure loss warning (Y page 182) or
tyre pressure monitor* (Y page 183)
R coolant temperature (Y page 100)
R digital speedometer or outside tempera-
ture (Y page 104)
R ASSYST PLUS service interval display
R engine oil level* (Y page 176)
X To reset the trip meter: press and hold
the .reset button in the instrument clus-
ter until the trip meter is reset.
Displaying the coolant temperature X
Press the VorU button to select the
standard display.
X Press the &or* button to select the
coolant temperature. Under normal driving conditions, with the cor-
rect anti-corrosion and antifreeze additive concentration, the reading may rise to
120 †.
Displaying the digital speedometer or
outside temperature If you have selected the digital speedometer
as the status line (Y
page 104), select the
outside temperature display here 20
.
X Press the VorU button to select the
standard display.
X Press the &or* button to select
digital speedometer or the outside temper-
ature. Digital speedometer
Outside temperature
Audio/TV*/DVD* menu
Use the functions in the Audio/TV/DVD
menu to operate the audio equipment or
COMAND APS*.
Selecting a radio station You can only store new stations using the
audio system or COMAND APS* (see the sep-
arate operating instructions).
20 Vehicles for the United Kingdom: the outside temperature is always displayed. 100
On-board computerControls
* optional
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temperature, or for about 30 minutes if the
engine is not at normal operating temper-
ature (if you had started the engine only
briefly), before measuring.
i If you wish to cancel the measurement,
press the *or& button on the multi-
function steering wheel.
Using the oil dipstick Vehicles with a petrol/diesel engine (example)
X Pull oil dipstick :out of the oil dipstick
tube.
X Wipe off oil dipstick :.
X Insert oil dipstick :into the oil dipstick
tube to the stop, and take it out again.
The oil level is correct if the level is between
the minimum mark =and maximum
mark ;.
X Top up the oil if necessary.
Topping up the engine oil H
Environmental note
When topping up the oil, take care not to spill
any. Oil must not be allowed to escape into
the soil or waterways. You would otherwise be
damaging the environment. Cap (example)
X
Turn cap :anti-clockwise and remove.
X Top up with the amount of oil required
(Y page 289).
i The difference in quantity between the
minimum mark and maximum mark is
approximately 2 litres.
! Do not add too much oil. If too much oil
is added and the oil level is above the max-
imum mark on the dipstick, the engine or
catalytic converter could be damaged.
Have excess oil siphoned off.
X Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
For further information on engine oil, see
(Y page 289). Coolant
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X Turn the key to position 2(Y page 63) in
the ignition lock.
X Check the coolant temperature gauge in
the multi-function display. G
Risk of injury
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has Engine compartment
177Operation
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cooled down. The coolant temperature gauge
must display less than 70 †. Otherwise, you
could be scalded if hot coolant escapes.
The coolant expansion tank is located in the
engine compartment on the left when viewed
in the direction of travel. X
Slowly turn cap :half a turn anti-clock-
wise and allow excess pressure to escape.
X Turn cap :further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank ;if the coolant is level with marker
bar =in the filler neck when cold or
approximately 1.5 cm higher when hot.
X Top up as necessary with coolant which has
been tested and approved by Mercedes-
Benz.
X Replace cap :and tighten all the way to
the stop.
For further information on coolant, see
(Y page 291). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir for the windscreen
washer system and headlamp cleaning sys-
tem* is located in the engine compartment on the left-hand side when viewed in the
direction of travel.
i
Add windscreen washer concentrate to
the washer fluid all year round. G
Risk of fire
Windscreen washer fluid is highly flammable.
Fire, naked flames and smoking are prohibi-
ted when handling washer fluid concentrate.
! Only use washer fluid concentrate which
is suitable for plastic lenses. Unsuitable
washer fluid concentrate could damage the
plastic lenses of the headlamps.
X Mix the windscreen washer fluid in a con-
tainer beforehand.
X At temperatures above freezing:
Fill the washer fluid reservoir with a mix of
water and windscreen washer concentrate
(e.g. MB SummerFit).
X At temperatures below freezing:
Fill the washer fluid reservoir with a mix of
water, antifreeze additive and windscreen
washer concentrate (e.g. MB WinterFit).
Adapt the mixing ratio to the outside tem-
peratures.
X To open: pull cap:upwards by the tab.
X Top up with the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages. 178
Engine compartmentOperation
* optional
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Display messages
Possible causes/consequences and
X
X Solutions ? Coolant
Stop car,
turn
engine off The coolant is too hot.
X
Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Make sure that the air supply to the radiator is not blocked,
e.g. by slush.
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display
(Y page 100).
X If the temperature increases again, visit a qualified special-
ist workshop immediately. The poly-V-belt may have torn.
X
Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise over-
heat.
X Switch off the engine.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display
(Y page 100).
X Visit a qualified specialist workshop. + Top up
coolant
See Own‐
er's Man‐
ual The coolant level is too low.
X
Top up the coolant, observing the warning notes before
doing so (Y page 177).
X Have the engine cooling system checked at a qualified spe-
cialist workshop if the coolant needs topping up more often
than usual. 224
Display
messagesPractical advice
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Problem
Possible causes/consequences and
X
X Solutions Vehicles with a petrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or a mechanical
component of the engine control unit.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it. The coolant tempera-
ture gauge shows a
value above 120 †.
You also hear a warning
tone. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 177). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled suffi-
ciently.
X
If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. The engine does not
switch off. The ignition lock is faulty.
X
Open the fuse box in the engine compartment (Y page 281).
X Remove fuse 120 using the fuse extractor.
The engine stops.
If you wish to start the engine again:
X Replace the fuse. Troubleshooting
243Practical advice
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Engine number
The engine number is stamped on the crank-
case. More information can be obtained from
any Mercedes-Benz Service Centre. Service products and capacities
Service products include the following:
R fuels (e.g. petrol, diesel)
R exhaust gas aftertreatment additive
(AdBlue ®
)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer concentrate
Mercedes-Benz recommends that you only
use products which have been tested and
specially approved by Mercedes-Benz for
your vehicle and which are listed in this
Mercedes-Benz Owner's Manual in the rele-
vant chapter since:
R parts and service products are matched.
R damage caused by the use of non-approved
service products is not covered by the
implied warranty.
You can recognise service products approved
by Mercedes-Benz by the following inscrip-
tion on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations that
relate to a level of quality or a specification in
accordance with an MB Sheet number (such
as MB 229.5) have not necessarily been
approved by Mercedes-Benz.
You can obtain further information from any
Mercedes-Benz Service Centre. G
Risk of injury
When handling, storing and disposing of any
service products, please observe the relevant regulations, as you could otherwise endanger
yourself and others.
Keep service products away from children.
To protect your health, do not allow service
products to come into contact with your eyes
or open wounds. See a doctor immediately if
any service product is swallowed.
H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. Fuel
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Before refuelling, turn off the engine and the
auxiliary heating *. G
Risk of injury
Do not allow fuel to come into contact with
skin or clothing.
Allowing fuels to come into direct contact with
your skin or inhaling fuel vapours is damaging
to your health.
Tank capacity Total capacity 100 l
Of which reserve
fuel Approximately 13 l
!
Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Never mix
diesel with petrol. Even small amounts of
the wrong fuel result in damage to the
injection system. Damage resulting from
adding the wrong fuel is not covered by the
implied warranty.
Further information on refuelling and on
fuels (Y page 172) Service products and capacities
287Technical data
* optional
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