Page 147 of 219

Driving and operating145Fuel
Fuel for petrol engines Only use unleaded fuel that complies
with European standard EN 228 or
E DIN 51626-1 or equivalent.
Your engine is capable to run with
E10 fuel that fulfills these standards.
E10 fuel contains up to 10 %
bioethanol.
Use fuel with the recommended
octane rating 3 202. 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.
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 and may affect
your warranty.
Caution
Use of fuel with too low an octane
rating could lead to uncontrolled combustion and engine damage.
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
sulfur concentration below 50 ppm.
Caution
Use of fuel that does not comply to EN 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.
Refuelling
Page 156 of 219
154Vehicle care9Danger
The ignition system and Xenon
headlights use extremely high
voltage. Do not touch.
The caps for topping up the engine oil, the coolant, the washing fluid and theoil dipstick handle are yellow for ease
of identification.
Bonnet
Opening
Pull the release lever and return it to
its original position.
Lift the safety catch upwards and
open the bonnet.
Air intake 3 124.
Secure the bonnet support.
Closing Before closing the bonnet, press the
support into the holder.
Lower the bonnet and allow it to drop into the catch. Check that the bonnet
is engaged.
Engine oil Check the engine oil level manuallyon a regular basis to prevent damage
to the engine. Ensure that the correct specification of oil is used.
Recommended fluids and lubricants
3 194.
Page 196 of 219

194Service and maintenance
Fixed service interval
When service is due, InSP appears in
the service display for approx.
10 seconds when the ignition is
switched on. Have the next service
performed by a workshop within
one week or 500 km (whichever
occurs first).
Flexible service interval
The service interval is based on
several parameters depending on
usage and is calculated using these
parameters.
If the remaining distance is less than
1500 km, InSP is displayed with a
remaining distance of 1000 km when
the ignition is switched on and off. If
less than 1000 km remain, InSP is
displayed for several seconds. Have
the next service performed by a
workshop within one week or
500 km (whichever occurs first).Display of remaining distance:
1. Switch off ignition.
2. Briefly press the trip odometer reset button. The odometer
reading is shown.
3. Press and hold the reset button for
about 2 seconds. InSP and the
remaining distance are displayed.Recommended fluids,
lubricants and parts
Recommended fluids and
lubricants Only use products that meet therecommended specifications.
Damage resulting from the use of
products not in line with these
specifiations will not be covered by
the warranty.9 Warning
Operating materials are
hazardous and could be
poisonous. Handle with care. Pay
attention to information given on
the containers.
Engine oil
Engine oil is identified by its quality
and its viscosity. Quality is more
important than viscosity when
selecting which engine oil to use. The oil quality ensures e.g. engine
cleanliness, wear protection and oil
Page 197 of 219

Service and maintenance195
aging control, whereas viscosity
grade gives information on the oil's
thickness over a temperature range.
Dexos is the newest engine oil quality
that provides optimum protection for
gasoline and diesel engines. If it is unavailable, engine oils of other listed qualities have to be used.
Recommendations for gasoline
engines are also valid for
Compressed Natural Gas (CNG),
Liquified Petroleum Gas (LPG) and
Ethanol (E85) fueled engines.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 199.
Topping up engine oil
Engine oils of different manufacturers and brands can be mixed as long as
they comply with the required engine oil quality and viscosity.
Use of engine oil with only
ACEA A1/B1 or only A5/B5 quality is
prohibited, since it can cause long-
term engine damage under certain
operating conditions.Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 199.
Additional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade
depending on the minimum ambient
temperature 3 199.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only silicate-free long life coolant
(LLC) antifreeze.The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C. In
northern countries with very low
temperatures the factory filled coolant provides frost protection down to
approx. -37 °C. This concentration
should be maintained all year round.
The use of additional coolant
additives that intend to give additional
corrosion protection or seal against
minor leaks can cause function
problems. Liability for consequences
resulting from the use of additional
coolant additives will be rejected.
Brake and clutch fluid Only use high-performance brake
fluid approved for the vehicle, consult
your workshop.
Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should therefore be replaced at the specified interval.
Brake fluid should be stored in a
sealed container to avoid water
absorption.
Page 201 of 219
Technical data199Vehicle dataRecommended fluids and lubricantsEuropean service scheduleRequired engine oil qualityAll European countries
(except Belarus, Moldova, Russia, Turkey)
Only Israel
Engine oil qualityPetrol engines
(including CNG, LPG, E85)Diesel enginesPetrol engines
(including CNG, LPG, E85)Diesel enginesdexos 1––✔–dexos 2✔✔–✔
In case dexos quality is unavailable you may use max. 1 litre engine oil quality ACEA C3 once between each oil change.
Engine oil viscosity grades
All European countries and Israel (except Belarus, Moldova, Russia, Turkey)Ambient temperaturePetrol and diesel enginesdown to -25 °CSAE 5W-30 or SAE 5W-40below -25 °CSAE 0W-30 or SAE 0W-40
Page 203 of 219
Technical data201
All countries outside Europeexcept Israel
Only Belarus, Moldova, Russia, Turkey
Engine oil qualityPetrol engines
(including CNG, LPG, E85)Diesel enginesPetrol engines
(including CNG, LPG, E85)Diesel enginesACEA A3/B3✔–✔–ACEA A3/B4✔✔✔✔ACEA C3✔✔✔✔API SM✔–✔–API SN resource conserving✔–✔–
Engine oil viscosity grades
All countries outside Europe (except Israel),
including Belarus, Moldova, Russia, TurkeyAmbient temperaturePetrol and diesel enginesdown to -25 °CSAE 5W-30 or SAE 5W-40below -25 °CSAE 0W-30 or SAE 0W-40down to -20 °CSAE 10W-30 1)
or SAE 10W-40 1)1)
Permitted, but usage of SAE 5W-30 or SAE 5W-40 with dexos quality is recommended.
Page 204 of 219
202Technical dataEngine dataSales designation1.81.8Engine identifier codeA18XELA18XERNumber of cylinders44Piston displacement [cm3
]17961796Engine power [kW]88103at rpm56006300Torque [Nm]175175at rpm38003800Fuel typePetrolPetrolOctane rating RONrecommended9595possible9898possible9191Oil consumption [l/1000 km]0.60.6