fuel pump MERCEDES-BENZ CLS COUPE 2010 Owners Manual

under 50 ppm
.Otherwise, the emission
control syste mcould be damaged.
! Vehicles without adiesel particle fil-
ter: the engine oil should be changed more
frequently in countries in which diesel with
a higher sulphur conten tis available. More
information about intervals for changing
the engine oil can be obtained from any
Mercedes-Benz Service Centre.
! Using fuel that does not conform to Euro-
pean standard EN 590 or German standard
DIN 51628 can lead to increased wear,
engine damage and damage to the exhaust
system.
Do not use the following:
R marine diesel
R heating oil
R bio-diesel
R vegetable oil
R petrol
R paraffin
R kerosene
Do not mix these fuels with diesel fuels and
do not use any special additives. Other-
wise, this can lead to damage to the engine.
This excludes flow improver, see "Low out-
side temperatures".
! Use a filter when adding fuel from a fuel
can. Otherwise, the fuel lines and/or the
diesel injection system could be blocked by
particles from the fuel can.
For further information on "Fuel", see
(Y page 319).
Low outside temperatures Diesel fuel with improved cold flow qualities
is available during the winter months. In
Europe, various climate-dependent low-tem-
perature classes are defined in EN 590. Refu-
elling with diesel fuel which complies with the
climatic specifications of standard EN 590
can help to prevent operating problems. At
exceptionally low temperatures, it is possible that the flow properties of the fuel may be
inadequate. This also applies to fuel that has
not been adapted to suit the climatic condi-
tions, e.g. diesel fuel from warmer regions.
i
Further information about country-spe-
cific fuel properties can be obtained from
oil companies, e.g. at filling stations.
Flow improver Flow improvers can be added to improve the
cold resistance of diesel fuel. The effective-
ness of a flow improver is not guaranteed with
every fuel.
Correct dosage and thorough mixing are deci-
sive factors in ensuring improvement in low-
temperature resistance. Under certain cir-
cumstances, an excessive dosage may
actually decrease low-temperature resist-
ance and should therefore be avoided.F ollow
the manufacturer's dosing instructions.
Mix the additive with the diesel in good time,
before the flow properties of the diesel
become inadequate. Malfunctions can other-
wise only be rectified by heating the entire
fuel system, e.g. by parking the vehicle in a
heated garage.
Observe the information provided by the man-
ufacturer when using a flow improver. Only
use flow improvers that have been tested and
approved by Mercedes-Benz. You can obtain
further information from any Mercedes-Benz
Service Centre. Refuelling
Fuel filler flap The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The fuel filler flap is located to the rear on the
right. The position of the fuel filler cap is dis-
played in the instrument cluster
8.The
arrow next to the filling pump indicates the
side of the vehicle. 144
RefuellingDriving and parking

:
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type
Opening X
Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap.
X Turn the fuel filler cap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap ;.
X Completely insert the fuel pump nozzle into
the filler neck and refuel.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system.
Closing X
Replace the fuel filler cap and turn it clock-
wise. The fuel filler cap audibly engages.
X Close the fuel filler flap.
i Close the fuel filler flap before locking the
vehicle. Alocking pin otherwise prevents
the fuel filler flap from closing after the
vehicle has been locked. Fuel filler flap emergency release
G
Risk of injury
The edges on the inside of the vehicle body
can be sharp. You could injure yourself when
using the fuel filler flap emergency release.
Avoid contact with the edges on the inside of
the vehicle body.
The emergency release is located in the boot
behind the side trim on the right-hand side,
when viewed in the direction of travel.
X Open the boot lid.
X Slide down the luggage net.
X Open the side trim. X
Detach the emergency release from
retainer :.
X Pull the emergency release in the direction
of arrow ;.
The fuel filler flap is unlocked.
X Open the fuel filler flap. Refuelling
145Driving and parking Z