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Vehicle care215
Different dipsticks are used
depending on engine variant.
Pull out the dipstick, wipe it clean,
reinsert it fully, pull out and read the
engine oil level.
When the engine oil level has
dropped to the MIN mark, top up the
engine oil.
We recommend the use of the same
grade of engine oil that was used at
last change.
The engine oil level must not exceed the MAX mark on the dipstick.
Caution
Overfilled engine oil must be
drained or suctioned out. If the oil exceeds the maximum level, do
not start the vehicle and contact a
workshop.
Capacities 3 270.
Fit the cap on straight and tighten it.
Engine coolant The factory filled coolant provides
freeze protection down to approx.
-37 °C.
Caution
Only use approved antifreeze.
Coolant and antifreeze 3 262.
Coolant level
Caution
Too low a coolant level can cause engine damage.
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216Vehicle care
If the cooling system is cold, the
coolant level should be above the
MIN mark. Top up if the level is low.
9Warning
Allow the engine to cool before
opening the cap. Carefully open
the cap, relieving the pressure
slowly.
To top up, use a 1:1 mixture of
released coolant concentrate mixed
with clean tap water. If no coolant
concentrate is available, use clean
tap water. Install the cap tightly. Have
the coolant concentration checked
and have the cause of the coolant
loss remedied by a workshop.
Washer fluid
Fill with clean water mixed with a
suitable quantity of approved
windscreen washer fluid which
contains antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Washer fluid 3 262.
Brakes In the event of minimum thickness of
the brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
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Vehicle care217
The brake fluid level must be betweenthe DANGER and MAX marks.
If fluid level is below DANGER, seek
the assistance of a workshop.
Brake and clutch fluid 3 262.
Vehicle battery
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the battery. Avoid the use of
unnecessary electrical consumers.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Laying up the vehicle for more than
four weeks can lead to battery
discharge. Disconnect the clamp from the negative terminal of the vehicle
battery.
Ensure the ignition is switched off
before connecting or disconnecting
the vehicle battery.
Battery discharge protection 3 138.
Replacing the vehicle battery Note
Any deviation from the instructions
given in this section may lead to
temporary deactivation or
disturbance of the stop-start system.
When the vehicle battery is being
replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
must be closed off with a dummy cap,
and the ventilation in the vicinity of the negative terminal must be opened.
Ensure that the battery is always
replaced by the same type of battery.
The vehicle battery has to be
replaced by a workshop.
Stop-start system 3 157.
Charging the vehicle battery9 Warning
On vehicles with stop-start
system, ensure that the charging potential does not exceed 14.6 V
when using a battery charger.
Otherwise the vehicle battery may be damaged.
Jump starting 3 250.
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218Vehicle careDischarge protection
Battery voltage
When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
When the vehicle is being driven, the
load reduction function temporarily
deactivates certain functions, such as
the air conditioning, the heated rear
window, heated steering wheel, etc.
The deactivated functions are
reactivated automatically as soon as
conditions permit.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must be increased. This will be achieved by
an idle boost which may be audible.
A message appears in the Driver
Information Centre.
Power outlet
The power outlets are deactivated in
the event of low vehicle battery
voltage.Warning label
Meaning of symbols:
● No sparks, naked flames or smoking.
● Always shield eyes. Explosive gases can cause blindness or
injury.
● Keep the vehicle battery out of reach of children.
● The vehicle battery contains sulphuric acid which could cause
blindness or serious burn
injuries.
● See the Owner's Manual for further information.
● Explosive gas may be present in the vicinity of the vehicle battery.
Heating functionalities Note
Individual heating functionalities,
such as heated seats or heated
steering wheel, may be temporarily
unavailable in the event of electrical
loading constraints. Functions will
be resumed after some minutes.
Power saving mode
This mode deactivates electrical
consumers to avoid excessive
discharging of the vehicle battery.
These consumers, such as the
Infotainment system, windscreen
wipers, low beam headlights,
courtesy light, etc. can be used for a
total maximum time of about
40 minutes after ignition is switched
off.
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Vehicle care219Deactivating power saving mode
Power saving mode is deactivated automatically when the engine isrestarted. Run the engine for a
sufficient charge:
● for less than 10 minutes to use the consumers for approx.
5 minutes
● for more than 10 minutes to use the consumers for up to approx.
30 minutes
Diesel fuel system bleeding
If the tank has been run dry, the diesel
fuel system must be bled. The
bleeding procedure differs between
the engine types 3 268. Fuel up with
at least five litres of diesel before
starting the bleeding procedure.
Engines DV5RUCd, DV5RUC
1. Switch on the ignition.
2. Wait 1 minute and switch off the
ignition.
3. Try to start the engine.
If the engine does not start after a
short time, repeat the procedure.Engines DW10FEU, DW10FD,
DW10FDCU, DW10F
1. Switch on the ignition.
2. Wait 6 seconds and switch off the
ignition.
3. Repeat steps 1 and 2 for ten times. 4. Try to start the engine.
If the engine does not start after a
short time, repeat the procedure.
Engine DV6DU 1. Open the engine bonnet.
2. If necessary, unclip the engine
style cover to access the priming
pump.
3. Operate the priming pump
repeatedly until resistance is felt
(there may be resistance at the first
press).
4. Try to start the engine. If the engine
does not start after a short time, wait
around 15 seconds before trying
again. If the engine does not start
after a few attempts, repeat step 3
and try again to start the engine.
5. Put the engine style cover in place
and clip it in.6. Close the bonnet.
Wiper blade replacement
Windscreen
Switch off the ignition.
Within 1 minute after switching off the ignition, operate the wiper lever to
positon the wiper blades vertically on
the windscreen.
Lift the wiper arm until it stays in the
raised position, disengage and
remove the wiper blade.
Attach the wiper blade to the wiper
arm and push until it engages.
Page 222 of 287
220Vehicle careLower the wiper arm carefully.Rear window
Lift the wiper arm. Disengage the
wiper blade as shown in the
illustration and remove.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower the wiper arm carefully.
Bulb replacement
Switch off the ignition and switch off
the relevant switch or close the doors.
Only hold a new bulb at the base. Do not touch the bulb glass with bare
hands.
Use only the same bulb type for
replacement.
Replace headlight bulbs from within
the engine compartment.
Bulb check
After a bulb replacement switch on
the ignition, operate and check the
lights.
Halogen headlights Front turn lights 3 225.
Illustrations show the right headlight
unit.
Low beam bulb sits in outer chamber
( 2 )
High beam bulb sits in inner chamber
( 1 )
Parking light bulb sits in inner
chamber ( 1)
Daytime running light bulb sits in outer chamber ( 2)
Page 223 of 287
Vehicle care221Low beam
1. Remove the protective cover.
2. Press latch and remove the bulbsocket from reflector housing.
3. Detach the bulb from the bulbsocket and replace the bulb.
4. Insert the bulb socket into the reflector housing.
5. Fit the cover.
High beam
1. Remove the protective cover.
2. Press latch and remove the bulb socket from reflector housing.
Page 224 of 287
222Vehicle careWithdraw the bulb holder from the
reflector housing.
3. Detach the bulb from the bulb socket and replace the bulb.
4. Insert the bulb socket into the reflector housing.
5. Fit the cover.
Parking light
1. Remove the protective cover.
2. Press the clips on the bulb socket
to disengage and withdraw socket
from the reflector.
3. Remove the bulb from the socket by pulling.
4. Replace and insert the new bulb into the socket.
5. Insert the bulb socket into the housing.