Engine compartment
221Vehicles with a petrol engine:
The electronic ignition system uses high
voltage. For this reason, you must never
touch components of the ignition system
(ignition coil, ignition cable, spark plug con-
nector or test socket) when:
R the engine is running
R the engine is being started
R the ignition is switched on and the engine
is being cranked by hand
Vehicles with a diesel engine:
The electronic injection control uses high
voltage. Therefore, never touch fuel injec-
tion system components when:
R the engine is running
R the engine is being started
R the ignition is switched on
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 rods. Make sure that the windscreen wipers are
switched off and that the key has been
pulled out of the ignition lock before open-
ing the bonnet.
The bonnet release lever is located in the
driver's footwell. 1
Bonnet release lever
X Pull bonnet release lever 1.
The bonnet is released.
! Make sure that the windscreen wipers
are not folded out away from the wind-
screen. You can otherwise damage the
windscreen wipers or the bonnet. The handle for opening the bonnet is located
above the radiator grille.
2
Bonnet catch handle
X Reach into the gap, pull bonnet catch han-
dle 2up and lift the bonnet.
Closing G
Risk of injury
Make sure that nobody can become trap-
ped 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. Operation
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Engine compartment
222
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 a maximum of 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. You can only
estimate the oil consumption after you have
driven a considerable distance.
You will find further information about engine
oil in the "Technical data" section
(Y page 358).
Checking the engine oil level To do so:
R
the vehicle should be parked on level
ground.
R the engine should be switched off for at
least five minutes if the engine was at nor-
mal operating temperature.
R the engine should be switched off for at
least 30 minutes if the engine was not at operating temperature (i.e. if you only star-
ted the engine briefly).
Example
1
Oil dipstick
2 Maximum mark
3 Minimum mark
X Pull oil dipstick 1out of the oil dipstick
tube.
X Wipe off oil dipstick 1.
X Insert oil dipstick 1into the oil dipstick
tube to the stop, and take it out again.
The oil level is correct if the level is between
minimum mark 3and maximum mark
2.
X Top up the oil if necessary. i
The difference in quantity between mini-
mum mark 3and maximum mark 2is
approximately 2 litres.
Topping up the engine oil Example
1
Cap
X Unscrew cap 1and remove it.
X Top up with the amount of oil required.
! 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 Screw cap 1onto the filler neck. Operation
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Care
245
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
Damaged seals or electrical components
can lead to failures or leaks.
Cleaning the wiper blades and the out-
side of the windscreen G
Risk of injury
Turn the key to position 0in the ignition
lock before cleaning the windscreen or the
wiper blades. There is otherwise a risk of
the windscreen wipers being set in motion
and causing injury. X
Turn the key to position 1(Y page 76)in the
ignition lock.
X Set the windscreen wipers to position u
(Y page 104) on the combination switch.
X Turn the key to position 0(Y page 76)or
remove it when the wiper arms are vertical.
! Only fold the wiper arms away from the
windscreen when they are in a vertical posi-
tion, otherwise you will damage the bonnet.
X Fold the wiper arms away from the wind-
screen until you feel them engage.
X Clean the windscreen and the wiper blades.
X Fold the windscreen wipers back again
before the ignition is switched on.
! Do not clean the wiper blades too often
as this will result in the rubber becoming
porous, leading to wiper noise.
Cleaning the windows !
Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows.
Clean the insides of the windows with a
damp cloth or commercially-available glass
cleaner. Avoid touching the inside of the
rear windscreen and the side windows with hard objects, e.g. ice scrapers or rings. You
could otherwise cause damage to the win-
dows, rear window heating or aerial on the
rear window.
i Anti-glare film retrofitted to the insides of
the windows could interfere with radio or
mobile phone reception, especially if it is
conductive or metal-coated film. Informa-
tion about anti-glare film can be obtained
from any Mercedes-Benz Service Centre.
Cleaning the headlamps X
Clean the plastic lenses of the headlamps
with a damp sponge.
! Only use washer fluid which is suitable
for plastic lenses. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
Do not use the following:
R dry cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvent
You could otherwise scratch or damage the
surface of the lenses. Operation
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Display
messages 264 Display messages Possible cause/consequence Possible solution
DISTRONIC and
SPEEDTRONIC inoperative
Distronic
* andSpeedtronic are unavaila-
ble. X
Visit a qualified specialist workshop. Cruise control - - - km/h A condition for activating cruise control
has not been met. X
Activate ESP ®
(Ypage 61)
X If conditions permit, drive faster than
30 km/h and store the speed (Y page 140).Symbol messages
G
Risk of accident and injury
The operating safety of your vehicle could be compromised if service work is carried out improperly. You could lose control of the vehicle,
thereby causing an accident. Safety systems may also not be able to protect you or others as intended.
Always have maintenance work carried out at a qualified specialist workshop which has the necessary specialist knowledge and tools to
carry out the work required.
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose.
In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. Display messages Possible cause/consequence Possible solution
a This message always appears when the
tailgate is open. X
Close the tailgate. G
Risk of accident
Vehicles with an anti-theft alarm sys-
tem*:
You are driving with the bonnet open. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Close the bonnet. Practical advice
* optional
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Changing the bulbs
308
i
Have the headlamp setting checked reg-
ularly at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Changing the front bulbs
Replacing dipped-beam headlamps
(vehicles with halogen headlamps) 1
Housing cover for dipped-beam headlamp
2 Bulb holder for dipped-beam headlamp
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 1anti-clockwise and
remove it.
X Turn bulb holder 2anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 2.X
Insert the new bulb into bulb holder 2.
X Insert bulb holder 2and turn it clockwise.
X Align housing cover 1and turn it clock-
wise.
Replacing the bulb in the main-beam
(vehicles with halogen headlamps) 1
Housing cover for main-beam headlamp
2 Bulb holder for main-beam headlamp
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 1anti-clockwise and
remove it.
X Turn bulb holder 2anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 2.X
Insert the new bulb into bulb holder 2.
X Insert bulb holder 2and turn clockwise
until it engages.
X Place housing cover 1back on and turn it
clockwise until it engages.
Replacing side/parking lamp bulbs 1
Bulb holder for side/parking lamp
X Switch off the lights.
X Open the bonnet.
X Turn bulb holder 1anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 1.
X Insert the new bulb into bulb holder 1.
X Insert bulb holder 1and turn it clockwise. Practical advice
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Changing the bulbs
309
Replacing the bulbs in foglamps with
cornering light function* 1
Front foglamp
2 Cover
3 Cover screws
4 Foglamp screws
X Switch off the lights.
X Remove screws 3.
X Remove cover 2.
X Remove screws 4.
X Remove front foglamp 1from the bumper. 5
Bulb holder for front foglamp
i If necessary, reconnect the additional
cable during installation.
X Turn bulb holder 5anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 5.
X Insert the new bulb into bulb holder 5.
X Insert bulb holder 5and turn clockwise
until it engages.
X Insert front foglamp 1into the bumper.
X Replace screws 4of front foglamp 1.
X Position cover 2.
X Fasten screws 3into cover 2. Replacing the turn signal lamps
1
Bulb holder for turn signal
X Switch off the lights.
X Open the bonnet.
X Turn bulb holder 1anti-clockwise and pull
it out.
X Turn the bulb anti-clockwise, applying
slight pressure, and remove it from bulb
holder 1.
X Insert the new bulb into bulb holder 1and
turn clockwise while applying slight pres-
sure.
X Insert bulb holder 1and turn clockwise
until it engages. Practical advice
* optional
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Battery
328
!
Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while it is still installed. Otherwise, the vehi-
cle's electronic system may be damaged.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
X Charge the battery. Observe the notes in
the operating instructions for your battery
charger.
X Refit the charged battery.
To do this, follow the steps described in
"Removing the battery" (Y page 327) in
reverse order.
i You can charge the battery using the
jump-start terminals. These are located on
the right when viewed in the direction of
travel.
X Open the bonnet (Y page 220). Jump-start terminals
1
Body earth point (negative terminal)
2 Positive terminal (under cover)
3 Cover Reconnecting the battery
! Always reconnect the battery in the
sequence described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics.
X Switch off all electrical consumers.
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Connect the breather hose. Make sure that
a cell cap is fitted is fitted on the side. i
If the battery power supply has been inter-
rupted (e.g. if it has been reconnected), you
must carry out the following tasks:
R Set the time (Y page 132).
On vehicles with COMAND and a naviga-
tion system*, the clock is set automati-
cally
R Reset the sliding/tilting sun-
roof* (Y page 180).
R Reset the panorama sliding/tilting sun-
roof (Y page 183).
R Reset the function for folding the exterior
mirrors in/out automatically* by folding
the mirrors out once ( Ypage 91).
R Reset the side windows (Y page 107)Practical advice
* optional
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Fuses
334 Before changing a fuse
X Park the vehicle.
X Switch off all electrical consumers.
X Remove the key from the ignition lock. Dashboard fuse boxes
1
Cover
! Do not use a pointed object such as a
screwdriver to open the cover in the dash-
board. You could damage the dashboard or
the cover.
X To open: open the front-passenger door.
X Pull cover 1upwards in the direction of
the arrow and remove it. X
To close: clip in cover 1at the top.
X Fold cover 1inwards until it engages.
X Close the front-passenger door. Fuse box in the engine compartment
1
Retaining clamp
2 Cover
X To open: open the bonnet (Y page 220).
X Remove moisture from the fuse box using
a dry cloth.
X Open retaining clamp 1.
X Fold cover 2upwards.
X To close: replace cover 2. !
The cover must be fitted properly, other-
wise moisture or dirt could affect the oper-
ation of the fuses.
X Close retaining clamp 1.
X Close the bonnet (Y page 221). Fuse box in the luggage compartment
Example: vehicle with an emergency spare
wheel*
1
Cover
X To open: open the tailgate.
X Open the luggage compartment floor and
secure it (Y page 250).
X Fold cover 1to the left in the direction of
the arrow. Practical advice
* optional
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