Page 190 of 295

188Driving and operatingThe system can not operate when no
lane marking is detected.Fuel
Fuel for petrol engines Only use unleaded fuel that complies
with European standard EN 228 or
E DIN 51626-1 or equivalent.
The engine is capable of running with
fuel that contains up to 10% ethanol
(e.g. named E10).
Use fuel with the recommended
octane rating. A lower 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.
Caution
Use of fuel that does not comply to EN 228 or E DIN 51626-1 or
equivalent can lead to deposits or
engine damage.
Caution
Use of fuel with a lower octane
rating than the lowest possible
rating could lead to uncontrolled combustion and engine damage.
The engine specific requirements
regarding octane rating are given in
the engine data overview 3 262. A
country specific label at the fuel filler
flap can supersede the requirement.
Fuel for diesel engines Only use diesel fuel that complies
with EN 590.
In countries outside the European
Union use Euro-Diesel fuel with a
sulphur concentration below 50 ppm.
Page 191 of 295

Driving and operating189Caution
Use of fuel that does not comply toEN 590 or similar can lead to
engine powerloss, increased wear
or engine damage and may affect
your warranty.
Do not use marine diesel oils, heating
oils, Aquazole and similar diesel-
water emulsions. Diesel fuels must
not be diluted with fuels for petrol
engines.
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.
LPG consists mainly of propane and
butane. The octane rating is between 105 and 115, depending on the
butane proportion. LPG is stored
liquid at around 5 - 10 bar pressure.
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 LPG 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 flashes:checking conditions
for fuel transition to
liquid gas operation.
Illuminates if
conditions are fulfilled.1 illumi‐
nates:liquid gas operation1 flashes 5
times and
extin‐
guishes:liquid gas tank is
empty or failure in
liquid gas system. A
message is displayed
in the Driver
Information Centre.
If the fuel tank is empty, the engine
will not start.
Page 264 of 295
262Technical dataEngine dataEngine identifier code
A14XER,
B14XERB14NELB14NET LPG,
B14NETB16XERA16XHTB16SHLB16SHTSales designation1.41.41.41.61.61.61.6Engineering codeA14XERB14NETB14NETB16XERB16SHTB16SHTPiston displacement [cm 3
]1398136413641598159815981598Engine power [kW]748810385125125147at rpm60004200-60004900-6000600060004750-60005500Torque [Nm]130200200155260260280at rpm40001850-42001850-490040001650-32001650-45001650-5000Fuel typePetrolPetrolPetrol/Liquid gasPetrolPetrolPetrolPetrolOctane rating RON 2)recommended95959595989898possible98989898959595possible91919191919191Additional fuel type––Liquid gas (LPG)––––2)
A country specific label at the fuel filler flap can supersede the engine specific requirement.
Page 265 of 295
Technical data263Sales designation1.61.82.0 OPC1.31.61.6Engine identifier codeA16LETA18XERB20NFTA13DTEB16DTHB16DTLEngineering codeA18XERB20NFTB16DTHB16DTLPiston displacement [cm3
]159817961998124815981598Engine power [kW]1321032067010081at rpm55006300530040003500-40003500Torque [Nm]230175400190320300at rpm220038002400-48001750-325020001750-2000Fuel typePetrolPetrolPetrolDieselDieselDieselOctane rating RON 3)recommended959598possible989895possible9191913)
A country specific label at the fuel filler flap can supersede the engine specific requirement.