Page 163 of 305

Driving and operating161Automatic Starter ControlThis function controls the engine
starting procedure. The driver does
not have to hold the key in position 3.
Once applied, the system will go on
starting automatically until the engine
is running. Because of the checking
procedure, the engine starts running after a short delay.
Possible reasons for a non-starting engine:
● Clutch pedal not operated (manual transmission).
● Brake pedal not operated or selector lever not in P or N
(automatic transmission).
● Timeout occurred.
Turbo engine warm-up Upon start-up, engine available
torque may be limited for a short time,
especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully protect the engine.Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but
accelerator is released.
Stop-start system
The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam. It starts the engine
automatically as soon as the clutch is depressed. A vehicle battery sensor
ensures that an Autostop is only
performed if the vehicle battery is
sufficiently charged for a restart.
Activation
The stop-start system is available as soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing eco.
Deactivation is indicated by the LED in the button extinguishing.
Autostop
If the vehicle is at a low speed or at a standstill, activate an Autostop as
follows:
● Depress the clutch pedal.
● Set the lever to neutral.
● Release the clutch pedal.
The engine will be switched off while the ignition stays on.
Page 211 of 305

Driving and operating209Fuel for natural gasoperation
Use natural gas with a methane
content of approx. 78 - 99%. L-gas
(low) has approx. 78 - 87% and H-gas (high) has approx. 87 - 99%. Biogas
with the same methane content can
also be used if it has been chemically
prepared and desulphurised.
Only use natural gas or biogas that
complies with DIN 51624.
Liquid gas or LPG must not be used.
Fuel selectorPressing Y switches between petrol
and natural gas operation. Switching
is not possible at high loads (e.g.
powerful acceleration, driving at full
throttle). The LED status shows the
current operating mode.1 off:natural gas
operation1 illumi‐
nates:petrol operation1 flashes:no switching is
possible, one type of
fuel is empty
As soon as the natural gas tank is empty, petrol operation is
automatically engaged until the
ignition is switched off.
If the natural gas tank is not refuelled, the system must be manually
switched to petrol operation before
the engine is restarted. This will
prevent damage to the catalytic
converter (overheating caused by
irregular fuel supply).
If the selector switch is operated
several times within a short time, a
switchover inhibitor is activated. The
engine remains in the current
operating mode. The inhibitor
remains active until the ignition is
switched off.
A slight loss of power and torque can
be expected during petrol operation.
You must therefore adapt your driving style (e.g. during overtaking
manoeuvres) and high vehicle loads
(e.g. towing loads) accordingly.
Every six months run the petrol tank
down until control indicator Y
illuminates, then refuel. This is
necessary to maintain fuel quality as
well as system function necessary for
petrol operation.
Fill the tank completely at regular
intervals to prevent corrosion in the
tank.
Fuel for liquid gas operation
Liquid gas is known as LPG
(Liquefied Petroleum Gas) or under
its French name GPL (Gaz de Pétrole Liquéfié). LPG is also known as
Autogas.
Page 258 of 305
256Vehicle care
3.Some versions may have covered
the vehicle jacking point. Pull out
the cover sideways.
4. Ensure the jack is correctly positioned under the relevant
vehicle jacking point.
5. Set the jack to the necessary height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Attach wheel wrench and with the
jack correctly aligned rotate wheel wrench until wheel is clear of the
ground.
6. Unscrew the wheel nuts. 7. Change the wheel. Spare wheel 3 257
8. Screw on the wheel nuts.
9. Lower vehicle.
10. Install the wheel wrench ensuring that it locates securely and tighten
each nut in a crosswise
sequence. Tightening torque is
140 Nm.
Page 259 of 305

Vehicle care25711. Align the valve hole in the wheelcover with the tyre valve before
installing.
Install wheel nut caps.
12. Install vehicle jacking point cover.
13. Stow the replaced wheel 3 257,
the vehicle tools 3 245 and the
adapter for the locking wheel nuts 3 66.
14. Check the tyre pressure of the installed tyre and the wheel nut
torque as soon as possible.
Have the defective tyre renewed or
repaired as soon as possible.
Jacking position for lifting platformRear arm position of the lifting
platform centrically under the recess
of the sill.
Front arm position of the lifting
platform at the underbody.
Spare wheel Some vehicles are equipped with a
tyre repair kit instead of a spare
wheel.
If mounting a spare wheel, which is
different from the other wheels, this
wheel might be classified as a
temporary spare wheel and the
corresponding speed limits apply,
even though no label indicates this.
Seek the assistance of a workshop to
check the applicable speed limit.
The spare wheel has a steel rim.Caution
The use of a spare wheel that is smaller than the other wheels or in
combination with winter tyres
could affect driveability. Have the defective tyre replaced as soon as
possible.
The spare wheel is located in a holder
beneath the vehicle floor.
1. Open the stowage in the load compartment 3 245.
2. Remove both caps above the hexagon bolts.
Page 279 of 305
Technical data277Engine dataSales designation1.41.41.4 LPG1.6 CNGEngine identifier codeB14NELB14NETB14NETB16XNTNumber of cylinders4444Piston displacement [cm3
]1364136413641598Engine power [kW]88103103110at rpm4200-60004900-600049005000Torque [Nm]200200200210at rpm1850-42001850-49001850-49002300Fuel typePetrolPetrolLiquid gas/PetrolNatural gas/PetrolOctane rating RONrecommended95959595possible98989898possible91919191Gas––LPGCNGEngine oil consumption [l/1000 km] 2)0.60.60.60.62)
Maximum value.
Page 280 of 305
278Technical dataSales designation1.61.61.81.8Engine identifier codeB16SHTB16SHLA18XELA18XERNumber of cylinders4444Piston displacement [cm3
]1598159817961796Engine power [kW]14712585103at rpm55004750-600056006300Torque [Nm]280260175175at rpm1650-50001650-450038003800Fuel typePetrolPetrolPetrolPetrolOctane rating RONrecommended98989595possible95959898possible91919191Gas––––Engine oil consumption [l/1000 km] 2)0.60.60.60.62)
Maximum value.
Page 281 of 305
Technical data279Sales designation1.6 Turbo1.6 Turbo2.0 Turbo2.0 TurboEngine identifier codeB16DTHB16DTJA20DTLA20DTNumber of cylinders4444Piston displacement [cm3
]1598159819561956Engine power [kW]100888196at rpm3500-4000400040004000Torque [Nm]320320260300at rpm200020001750-25001750-2500Fuel typeDieselDieselDieselDieselEngine oil consumption [l/1000 km] 2)0.60.60.60.62)
Maximum value.Sales designation2.0 Turbo2.0 Turbo2.0 Turbo2.0 Turbo2.0 BiTurboEngine identifier codeA20DTHA20DTHB20DTJB20DTHA20DTRNumber of cylinders44444Piston displacement [cm 3
]19561956195619561956Engine power [kW]1219696125143at rpm40004000375037504000
Page 282 of 305
280Technical dataSales designation2.0 Turbo2.0 Turbo2.0 Turbo2.0 Turbo2.0 BiTurboEngine identifier codeA20DTHA20DTHB20DTJB20DTHA20DTRTorque [Nm]350300300400400at rpm1750-25001750-25001500-27501750-25001750-2500Fuel typeDieselDieselDieselDieselDieselEngine oil consumption [l/1000 km]2)0.60.60.60.60.62)
Maximum value.