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144Driving and operatingFuel
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 3 200. 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 184 of 217

182Vehicle care
9. Install the wheel wrench ensuringthat 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 with the tyre valve before
installing.
Install wheel bolt caps.
11. Stow the replaced wheel 3 177
and the vehicle tools 3 171.
12. Check the tyre pressure of the installed tyre and also the wheel
bolt torque as soon as possible.
Have the defective tyre renewed or
repaired.
Spare wheel The spare wheel can be classified as
a temporary spare wheel depending
on the size compared to the other
mounted wheels and country
regulations.
The spare wheel has a steel rim.Use of a spare wheel that is smaller
than the other wheels or together with
winter tyres could affect driveability.
Have the defective tyre replaced as
soon as possible.
The spare wheel is kept beneath the
vehicle.
1. Open the stowage in the load compartment 3 171.
2. Fully release the hexagon bolt in the stowage compartment using
the wheel wrench.
3. Lift the spare wheel holder.
4. Unhook the catch and lower the spare wheel.
5. Detach the safety cable.
6. Lower holder all the way and remove spare wheel.
7. Change the wheel.
8. Place replaced wheel in spare wheel holder with outside of wheel
facing upwards. Wheels only up to
16 inches can be placed.
Page 202 of 217
200Technical dataEngine dataSales designation1.61.81.8Engine identifier codeA16XERA18XELA18XERNumber of cylinders444Piston displacement [cm3
]159817961796Engine power [kW]8588103at rpm600056006300Torque [Nm]155175175at rpm400038003800Fuel typePetrolPetrolPetrolOctane rating RONrecommended959595possible989898possible919191Oil consumption [l/1000 km]0.60.60.6
Page 203 of 217
Technical data201
Sales designation1.71.7Engine identifier codeA17DTJA17DTRNumber of cylinders44Piston displacement [cm3
]16861686Engine power [kW]8192at rpm38004000Torque [Nm]260280at rpm23002300Fuel typeDieselDieselOil consumption [l/1000 km]0.60.6