Page 126 of 233

124Driving and operating
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 is not operated (manual transmission).
■ brake pedal not operated (manual transmission automated).
■ 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.
On vehicles with manual
transmission, the engine is started
automatically as soon as the clutch is
depressed.
On vehicles with manual transmission
automated, the engine is started
automatically as soon as the brake
pedal is released.
A vehicle battery sensor ensures that an Autostop is only performed if thevehicle 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 the eco button.
The deactivation is indicated when
the LED in the button extinguishes.
Autostop
Vehicles with manual transmission:
If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
■ Depress the clutch pedal.
■ Set the lever in neutral.
■ Release the clutch pedal.
Page 153 of 233

Driving and operating151
The system can be activated or
deactivated in the Info-Display,
vehicle personalisation 3 100.
Deactivation is indicated by a
message in the Driver Information
Centre.
Detection zones
The detection zones start at the rear
bumper and extend approx.
3 metres rearwards and to the sides.
The height of the zone is approx.
between 0.5 metres and 2 metres off
the ground.
Side blind spot alert is designed to ignore stationary objects, e.g.
guardrails, posts, curbs, walls and
beams. Parked vehicles or oncoming vehicles are not detected.
Fault Occasional missed alerts can occur
under normal circumstances and will
increase in wet conditions.
Side blind spot alert does not operate when the left or right corners of the
rear bumper are covered with mud,dirt, snow, ice, slush, or in heavy
rainstorms. Cleaning instructions
3 203.
In the event of a fault in the system or if the system does not work due to
temporary conditions, a message is
displayed in the Driver Information
Centre. Seek the assistance of a
workshop.Fuel
Fuel for petrol enginesOnly use unleaded fuel that complies
with European standard EN 228 or E DIN 51626-1 or equivalent.
The engine is capable of running with E10 fuel that fulfills these standards.E10 fuel contains up to 10 %
bioethanol.
Use fuel with the recommended
octane rating 3 215. Use of fuel with
too low an octane rating can reduce
engine power and torque and slightly increases fuel consumption.Caution
Do not use fuel or fuel additives
that contain metallic compounds
such as manganese-based
additives. This may cause engine
damage.
Page 195 of 233

Vehicle care193
Some versions have sill
panellings with covered vehicle
jacking points: first pull out the
cover at the respective jacking
point before positioning the jack.
4. Set the jack to the necessary height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Attach jack handle and with the
jack correctly aligned rotate handle until wheel is clear of theground.
5. Unscrew the wheel bolts.
6. Change the wheel.
7. Screw on the wheel bolts.
8. Lower vehicle.
9. Install the wheel wrench ensuring that it locates securely and tighten
each bolt in a crosswise
sequence. Tightening torque is
110 Nm.
10. Align the valve hole in the wheel cover of the steel wheel with the
tyre valve before installing.
Install wheel bolt caps or centre
cap on alloy wheel.
11. Stow and secure the replaced wheel, the vehicle tools 3 179 and
the adapter for the locking wheel
bolts 3 53.
12. Check the tyre pressure of the installed tyre and the wheel bolt
torque as soon as possible.
Have the defective tyre renewed or
repaired as soon as possible.
Page 217 of 233
Technical data215Engine dataSales designation1.01.01.21.4
Engine identifier code
B10XFLB10XFTA12XELA14XEL
B14XELNumber of cylinders3344Piston displacement [cm 3
]99999912291398Engine power [kW]66855164at rpm3700-60005000-600056006000Torque [Nm]170170115130at rpm1800-37001800-450040004000Fuel typePetrolPetrolPetrolPetrolOctane rating RONrecommended95959595possible98989898possible91919191Gas––––Engine oil consumption [l/1000 km] 2)0.60.60.60.62)
Maximum value.
Page 218 of 233
216Technical data
Sales designation1.4 LPG1.4Adam SEngine identifier codeB14XELA14XERB14NEHNumber of cylinders444Piston displacement [cm3
]139813981362Engine power [kW]6474110at rpm5200-600060005000Torque [Nm]130 3)130220at rpm400040003000-4500Fuel typeLiquid Gas/PetrolPetrolPetrolOctane rating RONrecommended959598possible989895possible919191GasLPG––Engine oil consumption [l/1000 km] 4)0.60.60.63)
LPG operation: 125.
4) Maximum value.