
Inspecting and replenishing
Fuel
Introduction
This chapter contains information on the following subjects:
Petrol and diesel refuelling
201
Lead-free petrol
202
Diesel fuel
203
The correct fuel grades for your vehicle are specified on the inside of the fuel
filler flap » Fig. 224 on page 201 .
WARNING■
The operating instructions of the refuelling system must always be fol-
lowed.■
Do not smoke when refuelling and do not use a mobile phone.
■
Fuel vapours are explosive - can be fatal!
CAUTION
■ Never drive until the fuel tank is completely empty! The irregular supply of
fuel can cause misfiring, which can result in damage to parts of the engine and
the exhaust system.■
Immediately remove any fuel that has spilled onto the vehicle's paintwork –
risk of paint damage.
■
If the vehicle was not purchased in the country where it was intended to be
operated, you should check whether the fuel specified by the manufacturer is
offered in the country where the vehicle will be operated. You should also per-
haps check whether the manufacturer has recommended a different fuel for
operation of the vehicle in the corresponding country. If no prescribed fuel is
available, then you must check whether it is permitted by the manufacturer to
operate the vehicle with another fuel type.
Petrol and diesel refuellingFig. 224
Open fuel filler flap / unscrew tank cap / place the tank cap on
the fuel filler flap
Fig. 225
Fuel filler tube on vehicles with
diesel engines
Read and observe and on page 201 first.
Refuelling can be done if the following conditions are met.
The vehicle is unlocked.
The engine and the ignition are switched off.
The auxiliary heating and ventilation is switched off » page 124.
›
Press on the fuel filler flap in the direction of the arrow
1
accordingly
» Fig. 224 .
›
Open the cover in the direction of the arrow
2
.
›
Unscrew the tank cap in the direction of arrow
3
.
›
Remove the tank cap and place in the recess on top of the fuel filler flap in
the direction of arrow
4
.
›
Insert the pump nozzle into the fuel filler neck as far as it will go, and refuel.
The fuel tank is full just as soon as the pump nozzle switches off for the first
time »
.
201Inspecting and replenishing

Preheating fuel
The vehicle is fitted with a fuel filter preheating system. This secures opera-
tion of a vehicle using diesel fuel down to an environmental temperature of
-24 °C.
Diesel fuel additives
The diesel fuel in accordance with the prescribed standards meets all the con-
ditions for a smooth running engine. We therefore recommend that no diesel
fuel additives are used. This can result in considerable damage to parts of the
engine or the exhaust system.
CAUTION
■ Just filling the tank once with diesel fuel that does not comply with the
standard, can cause severe damage to parts of the engine, the fuel and ex-
haust system.■
If a different fuel other than diesel fuel, which complies to the above men-
tioned standards (e.g. petrol) is put into the tank, do not start the engine or
switch on the ignition! Extensive damage to engine parts can occur.
■
Water which has collected in the fuel filter can cause engine faults.
CAUTION
■ The vehicle cannot be operated with biofuel RME, therefore this fuel must
not be refuelled and driven. The use of biofuel RME can cause considerable
damage to parts of the engine or fuel system.■
Do not mix any fuel additives, so-called “flow improvers” (petrol and similar
agents) into the diesel. This can result in considerable damage to parts of the
engine or the exhaust system.
AdBlue ®
and its refilling
Introduction
This chapter contains information on the following subjects:
Tank and level check
205
AdBlue ®
replenish
205
In order to reduce pollutant emissions from vehicles with diesel engines and
the SCR catalyst, a urea - AdBlue ®
solution is injected into the exhaust system.
For vehicles with the AdBlue ®
injection system there is a note on the inside of
the fuel filler flap referring to the location of the AdBlue ®
filler neck and the
AdBlue ®
- minimum replenishment amount, that is required by a low AdBlue ®
-
level.
AdBlue ®
standard
Only use AdBlue ®
that corresponds to the standard ISO 22241-1.
AdBlue ®
- consumption
The AdBlue ®
consumption amounts to around 0.8 - 1.2 l / 1000 km.
The AdBlue ®
consumption depends on driving style, the operating tempera-
ture of the system and on the weather conditions.
For information on storing AdBlue ®
▶ Keep AdBlue ®
only in original sealed containers and in a safe place.
▶ Keep the container out of the reach of children.
▶ Do not expose the containers to direct sunlight or temperatures above 30° C.
Instructions for cleaning ▶ If any painted vehicle parts, clothing and carpets are splashed with AdBlue ®
wash the affected area with a damp cloth and plenty of cold water.
▶ Remove any dried AdBlue ®
with warm water and a sponge.
Fault display
In the event of a system fault, the warning light is displayed in the instru-
ment cluster as well as the relevant notification » page 39.WARNING■
AdBlue ®
is an irritating and corrosive solution that can injure the skin,
eyes and respiratory system!■
In the event of eye or skin contact with AdBlue ®
, immediately wash the
affected area for at least 15 minutes with water and seek medical attention
immediately.
■
If AdBlue ®
is swallowed rinse your mouth with water for at least 15 mi-
nutes and consult a doctor immediately.
CAUTION
■ Never carry containers with AdBlue ®
permanently in the vehicle - there is a
risk of damage to the vehicle interior.■
Never add water or other additives AdBlue ®
.
204General Maintenance

The proportion of coolant additive in the mixture must be at least 40%.
The coolant additive may be increased to a maximum of 60%.
The correct mixing ratio of water and coolant additive is to be checked if nec-
essary by a specialist garage or is to be restored if necessary.
The description of the coolant is shown in the coolant expansion reservoir
» Fig. 231 on page 211 .WARNINGThe engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en- gine compartment » page 206.■
The coolant is harmful to health.
■
Avoid contact with the coolant.
■
Coolant vapours are harmful to health.
■
Never open the end cover of the coolant expansion reservoir while the
engine is still warm. The cooling system is pressurized!
■
When opening the end cover of the coolant expansion reservoir, cover it
with a cloth to protect your face, hands and arms from hot steam or hot
coolant.
■
If any coolant splashes into your eyes, immediately rinse out your eyes
with clear water and contact a doctor as soon as possible.
■
Always keep the coolant in the original container, safe from people who
are not completely independent, especially children - there is a danger of
poisoning!
■
If coolant is swallowed, consult a doctor immediately.
■
Never spill operating fluids over the hot engine - risk of fire.
CAUTION
■ Do not continue if for some reason it is not possible to fill with coolant un-
der the current circumstances! Switch off the engine and seek assistance from
a specialist garage.■
If the expansion tank is empty, do not top up with coolant. The system could
ventilate - there is a risk of engine damage,
not continue! Switch off the en-
gine and seek assistance from a specialist garage.
■
The concentration of coolant additive in the coolant must never be under
40%.
■
Over 60% of coolant additive in the coolant reduces the antifreeze protec-
tion and cooling effect.
■
A coolant additive that does not comply with the correct specification can
significantly reduce the corrosion protection of the cooling system.
■ Any faults resulting from corrosion may cause a loss of coolant and can con-
sequently result in major engine damage.■
Do not fill the coolant above the mark
A
» Fig. 231 on page 211 .
■
If an error occurs, leading to the engine overheating, the help of a professio-
nal garage is to be sought - there is a risk of serious engine damage occurring.
■
Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.
■
Never cover the radiator - there is a risk of the engine overheating.
Note
The coolant capacity is approximately 1 l greater on vehicles that are fitted
with an auxiliary heater (auxiliary heating and ventilation).
Checking the coolant level
Fig. 231
Coolant expansion reservoir
Read and observe and on page 211 first.
The coolant expansion bottle is located in the engine compartment.
Coolant expansion reservoir » Fig. 231
Mark for the maximum permissible coolant level
Mark for the lowest permissible coolant level
The coolant level should be kept between the marks
A
and
B
.
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is standing on a horizontal surface.
The engine is turned off.
The engine is not heated.
The bonnet is open.
AB211Inspecting and replenishing

Winter time
The vehicle battery only has a proportion of the starting power in lower tem-
peratures. A discharged vehicle battery may already freeze at temperatures
just below 0 °C .
We therefore recommend that you have the battery checked and, if necessary,
recharged by a specialist garage before the start of the winter.
Note
The battery acid level is also checked regularly by a specialist garage as part of
the inspection service.
Charging
Read and observe
and on page 213 first.
A properly charged vehicle battery is essential for reliably starting the engine.A charging operation can be performed if the following conditions are satis-
fied.
The engine is turned off.
The ignition is switched off.
All consumers are turned off.
The bonnet is open.
“Fast charging” with high currents
›
Disconnect both battery cables (first of all “negative”, then “positive”).
›
Attach the terminal clamps of the charger to the battery terminals (red =
“positive”, black = “negative”).
›
Plug the mains cable of the charger into the power socket and switch on the
device.
›
After charging has been successful: Switch off the charger and remove the
mains cable from the power socket.
›
Only then disconnect the charger's terminal clamps.
›
Reconnect the cables to the battery (first “positive”, then “negative”).
Charging with low voltages
It is not necessary to disconnect the cables from the battery if you recharge
the vehicle battery, for example from a mini-charger.
Refer to the instructions of the charger manufacturer .
A charging current of 0.1 multiple of the total vehicle battery capacity (or low-
er) must be used until full charging is achieved.
The vent plugs of the vehicle battery should not be opened for charging.WARNING■ When you charge a battery, hydrogen is released, and a highly explosive
gas mixture is also produced. An explosion can be caused through sparkling
over during unclamping or loosening of the cable plug while the ignition is
on.■
Creating a bridge between the poles on the battery (e.g. with metal ob-
jects - cables) creates a short circuit - risk of damage to the battery, explo-
sion and burning of the battery, jets of acid spurting out.
■
Avoid creating sparks when working with cables and electrical devices.
Strong sparking represents a risk of injury.
■
Before carrying out any work on the electrical system, switch off the en-
gine, the ignition and all electrical consumers and disconnect the negative
terminal
.
■
“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
■
We therefore recommend that vehicle batteries be “rapidly charged” by a
specialist garage.
CAUTION
On vehicles with the START / STOP system or additional heating (auxiliary
heating), do not connect the pole terminal of the charger directly to the nega-
tive terminal of the vehicle battery but only to the engine earth » page 230.
Replacing
Read and observe
and on page 213 first.
The new vehicle battery must have the same capacity, voltage, current and thesame size as the original Battery. Suitable vehicle battery types can be pur-
chased from a specialist garage.
We recommend you have the battery replaced by a specialist garage.
Disconnecting and reconnecting
Read and observe
and on page 213 first.
Disconnecting
›
Switch off the ignition.
215Inspecting and replenishing

WARNING■If the tire does not inflate to at least 2.0 bar, the damage is too great. The
sealing agent cannot be used to seal the tyre. Do not drive the vehicle!
Seek help from a specialist garage.■
The tyre inflation hose and air compressor may get hot as the tyre is be-
ing inflated – risk of burning.
CAUTION
Switch off the air compressor after running 8 minutes at the latest – risk of
overheating! Allow the air compressor to cool a few minutes before switching
it on again.
Notes for driving with repaired tyres
Read and observe
on page 228 first.
The inflation pressure of the repaired tyre must be checked after driving for 10minutes.
If the tyre inflation pressure is 1.3 bar or less
›
Do not continue to drive! The tyre cannot be properly sealed with the
breakdown kit.
If the tyre inflation pressure is 1.3 bar or more
›
Set the tyre pressure to the correct value.
›
Continue driving carefully to the nearest specialist garage at a maximum
speed of 80 km/h (50 mph).
WARNING■ A tyre filled with sealant has the same driving characteristics as a stand-
ard tyre.■
Do not drive faster than 80 km/h (50 mph).
■
Avoid accelerating at full throttle, sharp braking and fast cornering.
Jump-starting
Introduction
This chapter contains information on the following subjects:
Jump-starting using the battery from another vehicle
230The battery of another vehicle can be used to jump-start your vehicle if the en-
gine will not start because the battery is flat.WARNING■ Pay attention to the warning instructions relating to working in the en-
gine compartment » page 206.■
A discharged vehicle battery may already freeze at temperatures just be-
low 0 °C. If the battery is frozen, do not carry out a jump start with the bat-
tery of another vehicle – risk of explosion!
■
Keep any sources of ignition (naked flame, smouldering cigarettes, etc.)
away from the battery – risk of explosion!
■
Never jump-start vehicle batteries with an electrolyte level that is too low
– risk of explosion and caustic burns.
■
The vent screws of the battery cells must be tightened firmly.
Note
We recommend you buy jump-start cables from a car battery specialist.
Jump-starting using the battery from another vehicle
Fig. 249
Jump-starting: A – flat battery, B
– battery providing current
230Do-it-yourself

Removing/installing the towing eye›Manually screw the towing eye as far as it will go in the direction of the ar-
row 3
» Fig. 252 » .
For tightening purposes, we recommend, for example, using the wheel
wrench, towing eye from another vehicle or a similar object that can be pushed through the eye.
›
Unscrew the towing eye against the direction of the arrow
3
.
WARNINGThe towing eye must always be screwed in fully and firmly tightened, oth-
erwise the towing eye can tear when towing in or tow-starting.
Rear towing eye
Fig. 253
Removing the cap / fitting the towing eye
Read and observe
and on page 232 first.
Removing/installing the cap
›
Press on the fuel filler flap in the direction of the arrow
1
» Fig. 253 .
›
Remove the cap in the direction of the arrow
2
.
›
After unscrewing the towing eye, insert the cap in the area of arrow
1
.
›
Press the opposite side of the cap.
The cap must engage firmly.
Removing/installing the towing eye
›
Manually screw the towing eye as far as it will go in the direction of the ar-
row
3
» Fig. 253 » .
For tightening purposes, we recommend, for example, using the wheel
wrench, towing eye from another vehicle or a similar object that can be pushed
through the eye.›
Unscrew the towing eye against the direction of the arrow
3
.
WARNINGThe towing eye must always be screwed in fully and firmly tightened, oth-
erwise the towing eye can tear when towing in or tow-starting.
Vehicles with a tow hitch
Read and observe
and on page 232 first.
On vehicles with a factory-fitted towing device, there is no mount for the
screw-in towing eye behind and below the cap.
Use the detachable ball rod for towing » page 184, Hitch .
Towing the vehicle using the tow bar device is a viable alternative solution to
using the towing eye.
CAUTION
The ball rod and/or the vehicle can be damaged if an unsuitable tow bar is
used.
Remote control and removable light
Introduction
This chapter contains information on the following subjects:
Replacing the battery in the remote control key
234
Replace battery in KESSY key
234
Synchronising the remote control
235
replace battery in the remote control the auxiliary heating (auxiliary
heating)
235
Change batteries of the removable lamps
235
Depending on the equipment the battery can be replaced in the remote con-
trol key or KESSY key.
The key has to be synchronised if the vehicle cannot be unlocked or locked
with the key after replacing the battery » page 235.
233Emergency equipment and self-help

Synchronising the remote controlRead and observe
on page 234 first.
If the vehicle does not unlock when pressing the remote control, the key may
not be synchronised. This can occur when the buttons on the remote control
key are actuated a number of times outside of the operative range of the
equipment or the battery in the remote control key has been replaced.
Synchronise the key as follows.
›
Press any button on the remote control key.
›
Unlock the door with the key in the lock cylinder within 1 minute of pressing the button.
replace battery in the remote control the auxiliary heating
(auxiliary heating)
Fig. 257
Radio remote control: Battery
cover
Read and observe on page 234 first.
The battery is located under a cover on the back of the radio remote control
» Fig. 257 .
›
Insert a flat, blunt object, such as a coin, into the gap of the battery cover.
›
Turn the cover against the direction of the arrow up to the mark to open the
cover.
›
Replace the battery.
›
Return the battery cover.
›
Turn the cover in the direction of the arrow up to the initial marking, engage.
Change batteries of the removable lampsFig. 258
Locking clip
Read and observe on page 234 first.
The battery change is carried out as follows.
›
Remove the lamp from the holder.
›
Lever off the cover for the rechargeable batteries with a narrow and pointed
object from the area of the lock clips
A
» Fig. 258 .
›
Take out the faulty rechargeable batteries from the lamp.
›
Insert the new rechargeable batteries.
›
Insert the cover for the rechargeable batteries and press it down until it
clicks into place.
CAUTION
If an incorrect rechargeable battery is used or a non-rechargeable battery,
there is a risk of damaging the lamp and the vehicle's electrical system.
Emergency unlocking/locking
Introduction
This chapter contains information on the following subjects:
Unlocking/locking the driver's door
236
Locking the door without a locking cylinder
236
Unlock the boot lid
236
Selector lever-emergency unlocking
237235Emergency equipment and self-help

Installing the storage compartment›Raise the storage compartment in the direction of the arrow 4.›
Overcome the resistance of the detents
A
.
›
Insert the brake control linkage in the opposite direction to arrow
2
.
›
Lock the brake control linkage in the opposite direction to arrow
1
.
›
Close the storage compartment.
Assignment of the fuses in the dash panel
Fig. 268
Fuses
Read and observe and on page 239 first.
No.Consumer1Not assigned2Not assigned3Not assigned4Not assigned5Databus6Alarm sensor7Air conditioning system, heating, receiver for remote control for the
auxiliary heating, selector lever for the automatic gearbox, relay for
the rear window heater, relay for the windscreen heater8Light switch, rain sensor, diagnostic connector, parking brake, light-
ing of the instrument cluster9USB socket10Touch screen, TV tuner11Left side belt tensioner12Radio13Shock absorber settingNo.Consumer14Air blower for air conditioning,heating15Electric steering lock16Signal amplifier for telephone17Instrument cluster, emergency operation18Reversing camera19KESSY20SCR21Haldex clutch, air conditioning compressor (GreenLine)22Towing hitch23Right side headlamp24Panorama roof25Central locking - drivers door and rear left, rear view mirror26Heated front seats27Music amplifier28Towing hitch - contact in the socket29Operating lever underneath the steering wheel3012-volt socket in luggage compartment31Left side headlamp32Parking aid (Park Assist)33Airbag switch for hazard warning lights
34
TCS, ESC button, tyre pressure monitor, pressure sensor for air con-
ditioning, reversing light switch, mirror with automatic dimming,
START-STOP button, controls for heating the rear seats, sensor for
air conditioning, parking brake, light switch35Headlight range control, AFS headlamps, diagnostic connector,
camera, radar36Headlight right37Headlight left38Towing hitch - contact in the socket39Central locking - passenger door and right rear door, rear view mir-
ror4012-volt power socket41Right side belt tensioner 240Do-it-yourself