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Refueling
Vehicle features and options
This chapter describes all standard, country-spe‐
cific and optional features offered with the series.
It also describes features that are not necessarily
available in your vehicle, e. g., due to the selected
options or country versions. This also applies to
safety-related functions and systems. When us‐
ing these functions and systems, the applicable
laws and regulations must be observed.
General information
Follow the fuel recommendation, refer to
page 224, prior to refueling.
A sufficient amount of fuel must be added to op‐
erate the Range Extender. When the Range Ex‐
tender is activated, the current charge state is
maintained. The vehicle has a greater range.
Do not refuel unless the engine is at a standstill
and the selector lever is in position P/N, other‐
wise the buildup of pressure may cause the fuel
nozzle to shut off prematurely.
Safety information
NOTE
With a driving range of less than
30 miles/50 km the engine may no longer have
sufficient fuel. Engine functions are not en‐
sured anymore. There is a risk of damage to
property. Refuel promptly.
Online Edition for Part no. 01402989267 - II/18
Refueling
Tank vent
Concept
The vehicle is equipped with a special fuel tank.
The fuel tank is designed for special require‐
ments that arise from operation with the Range
Extender.
General information
In the fuel tank, excess pressure can build up
due to gasoline vapors which are dissipated be‐
fore the fuel cap is opened.
Overview
The button is located on the driver's floor area.
Tank venting
1.
Switch off drive-ready state.
2.
Press button to start the pressure
equalization.
The status of the tank venting is displayed in
the instrument cluster. In rare cases, the tank
venting can last several minutes.
If the tank venting has been completed, a
message is displayed in the instrument clus‐
ter. The fuel filler flap is released for opening.
3.
Open the fuel filler flap.
If it is not possible to open the fuel filler flap
after tank venting, press the button again.
If it is still not possible to open the fuel filler
flap even after the button has been pressed,
unlock the fuel filler flap manually, refer to
page 222.
MOBILITY
221
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