X
Make sure that the windscreen wipers are
switched off. G
Risk of injury
The windscreen wipers and wiper linkage
could be set in motion.
When the bonnet is open, you or others could
be injured by the wiper linkage.
Make sure that the windscreen wiper is
switched off. Remove the key or make sure
that no ignition level has been selected on
KEYLESS GO*. In the instrument cluster, all of
the indicator lamps must be out.
The bonnet release lever is located in the
driver's footwell. X
Pull bonnet release lever :.
The bonnet is released.
! Make sure that the windscreen wipers
are not folded out from the windscreen.
You could otherwise damage the wind-
screen wipers or the bonnet.
The handle for opening the bonnet is located
above the radiator grille. X
Reach into the gap, pull bonnet catch han-
dle ;up and lift the bonnet.
Closing G
Risk of injury
Make sure that nobody can become trapped
as you close the bonnet.
X Lower the bonnet and let it fall from a
height of approximately 20 cm.
X Check that the bonnet has engaged prop-
erly.
i If the bonnet can be raised slightly, it is
not properly engaged. Open it again and
close it with a little more force. Engine oil
Depending on driving style, the vehicle con-
sumes up to 0.8 l oil per 1,000 km. The oil
consumption may be higher than this when
the vehicle is new or if you frequently drive at
high engine speeds.
Checking the engine oil level Before checking the engine oil level the fol-
lowing conditions for the vehicle should be
met:
R the vehicle should be parked on level
ground.
R the engine should be switched off for at
least five minutes if the engine is at normal
operating temperature.
R the engine should be switched off for at
least 30 minutes if the engine is not at
operating temperature (i.e. if you only start
the engine briefly).
Depending on the engine, the oil dipstick may
be installed at a different location. 220
Engine compartmentOperation
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If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Make sure that the automatic car wash is
suitable for the size of the vehicle. Fold in
the exterior mirrors before the vehicle is
washed. There is otherwise a risk of dam-
age to the exterior mirrors.
! When washing your vehicle in a tow-
through car wash, make sure that the auto-
matic transmission* is in position N. The
vehicle could otherwise be damaged.
R Vehicles with DIRECT SELECT lever and
key:
Do not remove the key from the ignition
lock. Do not open the driver's or front-
passenger door when the engine is
switched off, as this automatically shifts
the automatic transmission to park posi-
tion Pand locks the wheels, unless you
have previously shifted the automatic
transmission to N.
R Vehicles with DIRECT SELECT lever and
KEYLESS GO*:
Do not open the driver's or front-
passenger door when the engine is
switched off, as this shifts the automatic
transmission to park position Pand locks
the wheels.
! Make sure that the side windows are
closed completely, that the blower for the
ventilation/heating is switched off and that
the windscreen wiper switch is in position
0. The rain/light sensor could otherwise be
activated and thereby cause unintentional
wiping. This could result in damage to the
vehicle.
After using an automatic car wash, wipe off
wax and drying agents from the windscreen
and the wiper blades. This will prevent smears
and reduce wiping noises caused by residue
on the windscreen. High-pressure cleaners G
Risk of accident
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent.
! Observe the instructions issued by the
equipment manufacturer concerning the
distance to be maintained between the
nozzle of the high-pressure cleaner and the
vehicle (at least 30 cm).
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door joint
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to failures or leaks.
Care and treatment of matt paint-
work* Your vehicle has a clear matt finish. For this
reason, you should make sure that you
adhere to the following instructions to avoid
damage to paintwork due to improper treat-
ment.
!
Under no circumstances should you pol-
ish the vehicle. Polishing will make the
paintwork shine.
! When caring for your paintwork, do not
use paint cleaner, grinding or polishing Care
241Operation
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Display messages
Possible causes/consequences and
X
X Solutions b Malfunc‐
tion See
Owner's
Manual The exterior lighting is faulty.
X
Visit a qualified specialist workshop. Vehicles with trailer coupling*: a fuse may have blown.
X
Check the fuses (Y page 328).
X If necessary, replace the blown fuse. Observe the warning
notes.
If the display message continues to be shown:
X Visit a qualified specialist workshop. ¸ Replace
air
cleaner
The engine air filter is dirty and must be replaced
42
.
X Visit a qualified specialist workshop. 4 Check
eng. oil
lev. when
next refu‐
elling The engine oil level has dropped to a critical level. A warning
tone also sounds.
X
Check the engine oil level ( Ypage 220).
X If necessary, top up the engine oil.
X Have the engine checked for leaks if the engine oil needs
topping up more often than usual. + Change
key bat‐
teries The key batteries are discharged.
X
Change the batteries ( Ypage 304). + Key not
detected
(red display
message)
The KEYLESS GO key* is not in the vehicle. A warning tone
also sounds.
If you switch off the engine, you can no longer centrally lock
the vehicle and no longer start the engine.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Locate the KEYLESS GO key*. The KEYLESS GO key* is not detected while driving because
a powerful radio transmitter is causing interference. A warn-
ing tone also sounds.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Remove the Start/Stop button* from the ignition
lock (Y page 75).
X Insert the key into the ignition lock and turn it to the desired
position. 42
Only for certain vehicles. 274
Display
messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions + Key not
detected
(white dis-
play mes-
sage) You want to unlock or lock the vehicle and the KEYLESS GO
key* cannot be currently detected by the vehicle.
X
Locate the KEYLESS GO key*.
If the KEYLESS GO key* is still not detected:
X Lock or unlock the vehicle using the key. You are in the vehicle and the KEYLESS GO key* currently
cannot be detected by the vehicle.
X
Change the location of the KEYLESS GO key* in the vehicle.
If the KEYLESS GO key* is still not detected:
X Remove the Start/Stop button* from the ignition
lock (Y page 75).
X Insert the key into the ignition lock and turn it to the desired
position. + Key still
in vehicle
The KEYLESS GO key* has been detected inside the vehicle
during locking.
X
Remove the KEYLESS GO key* from the vehicle. + Replace
key The key must be replaced.
X
Visit a qualified specialist workshop. + Key does
not
belong to
vehicle You have put the wrong key in the ignition lock.
X
Use the correct key. + Close
doors to
lock vehi‐
cle At least one door is open. A warning tone also sounds.
X
Close all doors and lock the vehicle again. + Pull
starting
button
out then
insert key
KEYLESS GO* is temporarily malfunctioning or is defective. A
warning tone also sounds.
X
Remove the Start/Stop button* from the ignition
lock (Y page 75).
X Insert the key into the ignition lock and turn it to the desired
position. Display
messages
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Exterior mirrors
Problem
Possible causes/consequences and
X
X Solutions An exterior mirror has
been pushed out of
position.
Vehicles with exterior mirrors that cannot be folded in/out elec-
trically:
X
Move the exterior mirror into the correct position manually.
Vehicles with electrically folding exterior mirrors*:
X Press the mirror-folding button* (Y page 86) repeatedly until
you hear a distinct click.
The mirror housing is engaged again and you can adjust the
mirror as usual ( Ypage 86). Key
Problem
Possible causes/consequences and
X
X Solutions You cannot lock or
unlock the vehicle
using the key. The key batteries are discharged or nearly discharged.
X
Point the tip of the key at the driver's door handle from close
range and try to unlock or lock the vehicle again.
If this does not work:
X Lock or unlock the vehicle using the emergency key element
(Y page 299). The key is faulty.
X
Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 299).
X Have the key checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS GO*.
KEYLESS GO* is in standby mode because the vehicle has not
been unlocked for an extended period.
X
Pull the door handle and then turn the key to position 2in the
ignition lock. KEYLESS-GO* is malfunctioning.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/&button.
X Have the key checked at a qualified specialist workshop. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 299).296
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Problem
Possible causes/consequences and
X
X Solutions You have lost a key.
X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emer-
gency key element.
X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating* or inte-
rior lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 319).
or
X Jump-start the vehicle (Y page 323).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the key.
The steering lock is mechanically blocked.
44
X Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS
GO*. The key is in the
vehicle. A door is open. Therefore, the key cannot be detected as easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle using the key in the ignition lock. 44
Not vehicles with DIRECT SELECT selector lever. Troubleshooting
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Locking/unlocking in an emergency
Emergency key element
If the vehicle can no longer be locked or
unlocked with the key, use the emergency
key element.
If you use the emergency key element to
unlock and open the driver's door or the boot
lid, the anti-theft alarm system* will be trig-
gered (Y page 65).
There are several ways to turn off the alarm:
X Press the %or& button on the key.
or
X Insert the key into the ignition lock.
or
X Press the start/stop button *in the ignition
lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS
GO*. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the
key in the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of
the arrow and at the same time remove
emergency key element ;from the key. Unlocking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key or KEYLESS GO*:
X Remove the emergency key element from
the key (Y page 299). X
Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Turn the emergency key element anti-
clockwise to position 1.
The door is unlocked.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
X Turn the emergency key element back and
remove it. Locking the vehicle
If the vehicle can no longer be unlocked cen-
trally with the key or KEYLESS GO*:
X Open the driver's door.
X Close the front-passenger door and the
boot lid.
Close the front-passenger door and the
boot lid/tailgate.
X Press the locking button (Y page 71).
X Check whether the locking knobs on the
doors are still visible. Press the locking
knobs down manually, if necessary.
X Close the driver's door.
X Remove the emergency key element from
the key (Y page 299). Locking/unlocking in an emergency
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X
Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Turn the emergency key element clockwise
as far as it will go to position 1.
i On right-hand-drive vehicles, turn the
emergency key element anti-clockwise.
X Turn the emergency key element back and
remove it.
X Check whether the doors and the boot lid/
tailgate are locked. Opening the boot (Saloon)
! The boot lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the boot lid.
If the boot can no longer be unlocked with the
key or KEYLESS GO*:
X Remove the emergency key element from
the key (Y page 299). X
Insert the emergency key element fully into
the tailgate lock.
X Turn the emergency key element anti-
clockwise as far as it will go to position
1.
The boot is unlocked.
X Turn the emergency key element back and
remove it. Opening the tailgate (Estate)
If the tailgate can no longer be opened from
the outside, use the emergency release on
the inside of the tailgate.
On vehicles with a folding bench seat*, you
can use the handle to open the tailgate from
the inside (Y page 73).
X Remove the emergency key element from
the key (Y page 299). !
When opening, the tailgate swings up and
out. Therefore, make sure that there is suf-
ficient clearance above and behind the tail-
gate.
X Insert emergency key element ;into
opening in trim :.
X Turn emergency key element ;90° clock-
wise.
X Push emergency key element ;in the
direction of the arrow and open the tail-
gate. 300
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