Page 25 of 329

Keys, doors and windows23
Key with foldaway key section
Extend the key and open the unit.
Replace the battery (battery type CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
Radio remote controlsynchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control is
synchronised by switching on the
ignition.
Memorised settings
Whenever the key is removed from
the ignition switch, the following
settings are automatically memorised
by the key:
■ Lighting
■ Infotainment system
■ Central locking system
■ Sport mode settings
■ Comfort settings
The saved settings are automatically
used the next time the memorised key is inserted into the ignition switch and
turned to position 1 3 163.
A precondition is that Personalization
by driver is activated in the personal
settings of the Graphic-Info-Display.
This must be set for each key used.
On vehicles equipped with
Colour-Info-Display, the
personalisation is permanently
activated.
Vehicle personalisation 3 132.Central locking system
Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the respective door. Pulling the handle once more opens the door.
Notice
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Notice
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened.
Page 111 of 329

Instruments and controls109Caution
If the needle is in the red warning
zone, the maximum permitted
engine speed is exceeded. Engine at risk.
Fuel gauge
Displays the fuel level or gas level in
the tank depending on the operation
mode.
Control indicator i illuminates if the
level in the tank is low. Refuel
immediately if it flashes.
During liquid gas operation, the
system automatically switches over to
petrol operation when gas tanks are
empty 3 109.
Never run the tank dry.
Because of the fuel remaining in the
tank, the top-up quantity may be less
than the specified tank capacity.
Fuel selector
Press button LPG to switch between
petrol and liquid gas operation. The
LED 1 status shows the current
operating mode.
1 off=petrol operation1 illumi‐
nates=liquid gas operation1 flashes=no switching is
possible, one type
of fuel is empty
As soon as the liquid gas tank is
empty, petrol operation is
automatically engaged until the
ignition is switched off.
Fuel for liquid gas operation 3 211.
Engine coolant
temperature gauge
Page 214 of 329

212Driving and operating
The boiling point depends on the
pressure and mixing ratio. At ambient pressure, it is between -42 °C (pure
propane) and -0.5 °C (pure butane).Caution
The system works at an ambient
temperature of approx. -8 °C to
100 °C.
Full function of the LPG system can
only be guaranteed with liquid gas
which complies with the minimum
requirements of DIN EN 589.
Fuel selector
Pressing the LPG button switches
between petrol and liquid gas
operation as soon as the required
parameters (coolant temperature,
gas temperature and minimum
engine speed) have been reached.
The requirements are usually fulfilled
after around 60 seconds (depending
on exterior temperature) and the first
firm press on the accelerator. The
LED status shows the current
operating mode.1 off=petrol operation1 illumi‐
nates=liquid gas operation1 flashes=no switching is
possible, one type
of fuel is empty
As soon as the liquid gas tanks are
empty, petrol operation is
automatically engaged until the
ignition is switched off.
Every six months, run the petrol tank
down until control indicator i
illuminates, then refuel. This helps
maintain fuel quality and system
function for petrol operation.
Fill the tank completely at regular
intervals to prevent corrosion in the
tank.
Faults and remedies
If gas mode is not possible, check the following:
■ Is there enough liquid gas present?
■ Is there enough petrol present for starting?
Due to extreme temperatures in
combination with the gas
composition, it may take slightly
longer before the system switches
from petrol to gas mode.
In extreme situations, the system may
also switch back to petrol mode if the
minimum requirements are not
fulfilled.
Seek the assistance of a workshop in the event of all other faults.
Page 224 of 329

222Vehicle careVehicle careGeneral Information...................222
Vehicle checks ........................... 223
Bulb replacement .......................230
Electrical system ........................250
Vehicle tools .............................. 256
Wheels and tyres .......................258
Jump starting ............................. 274
Towing ....................................... 276
Appearance care .......................278General Information
Accessories and vehicle
modifications
We recommend the use of genuine parts and accessories and factory
approved parts specific for your
vehicle type. We cannot assess or
guarantee reliability of other products
- even if they have a regulatory or
otherwise granted approval.
Do not make any modifications to the electrical system, e.g. changes of
electronic control units (chip tuning).Caution
When transporting the vehicle on
a train or on a recovery vehicle, the
mud flaps might be damaged.
Vehicle storage
Storage for a long period of time
If the vehicle is to be stored for several months:
■ Wash and wax the vehicle.
■ Have the wax in the engine compartment and underbody
checked.
■ Clean and preserve the rubber seals.
■ Fill up fuel tank completely.
■ Change the engine oil.
■ Drain the washer fluid reservoir.
■ Check the coolant antifreeze and corrosion protection.
■ Adjust tyre pressure to the value specified for full load.
■ Park the vehicle in a dry, well ventilated place. Engage first orreverse gear or set selector lever to P . Prevent the vehicle from rolling.
■ Do not apply the parking brake.
Page 292 of 329
290Technical dataEngine dataSales designation1.41.41.41.41.61.61.6Engine identifier codeA14XELA14XERA14NELA14NET LPGA16XERA16LETA16XHTNumber of cylinders4444444Piston displacement [cm3
]1398139813641364159815981598Engine power [kW]64748810385132125at rpm600060004200-60004900-6000600055006000Torque [Nm]130130200200155230260at rpm400040001850-42001850-4900400022001650-3200Fuel typePetrolPetrolPetrolPetrol/LPGPetrolPetrolPetrolOctane rating RONrecommended95959595959598possible98989898989895possible91919191919191Gas–––LPG–––Oil consumption [l/1000 km]0.60.60.60.60.60.60.6
Page 293 of 329
Technical data291
Sales designation1.82.0 VXR1.31.71.71.7Engine identifier codeA18XERA20NFTA13DTEA17DTEA17DTCA17DTFNumber of cylinders444444Piston displacement [cm3
]179619981248168616861686Engine power [kW]10320670818196at rpm630053004000400040004000Torque [Nm]175400190280280300at rpm38002400-48001750-32501750-25001750-25002000-2500Fuel typePetrolPetrolDieselDieselDieselDieselOctane rating RONrecommended9598possible9895possible9191Oil consumption [l/1000 km]0.60.60.60.60.60.6
Page 294 of 329
292Technical data
Sales designation1.72.0 Turbo2.0 TurboEngine identifier codeA17DTSA20DTHA20DTRNumber of cylinders444Piston displacement [cm3
]168619561956Engine power [kW]96121143at rpm400040004000Torque [Nm]300350400at rpm2000-25001750-25001750-2500Fuel typeDieselDieselDieselOil consumption [l/1000 km]0.60.60.6