Refueling
92
Refueling
Fuel filler cap
Opening
Always switch off the engine before refu-
eling. Otherwise, no fuel can be dis-
pensed into the tank and the Service Engine 
Soon lamp lights up.<
1.Open fuel filler door. To do so, briefly press 
it at the rear edge.
2.Turn fuel filler cap counterclockwise.
3.Place the fuel filler cap in the bracket 
attached to the fuel filler door.
Closing
Replace the cap and turn it clockwise until you 
hear a clearly audible click.
Be careful not to crush the cap leash between 
the gas cap and the vehicle.
The warning lamp
* lights up.
The fuel filler cap is not properly closed 
or is missing. Check whether the fuel 
filler cap is properly closed.
Manually releasing fuel filler door
When a malfunction is occurring, you can 
unlock the fuel filler door manually:
1.Open the cover flap on the right-hand side 
panel of the cargo area, refer to page78.
2.Pull the green button. The fuel filler door is 
released.
Always take all applicable precautions 
and comply with all regulations when han-
dling fuels. Never carry spare fuel containers in 
your vehicle. Whether empty or full, these con-
tainers can leak, cause an explosion, and lead to 
fire in the event of a collision.<
Observe the following when refueling
When handling fuels, comply with all 
applicable safety precautions posted at 
the service station.<
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid lifting the filler 
nozzle while filling the tank; otherwise, this can 
result in:
>Premature pump shutoff
>Reduced efficiency in the fuel-vapor recov-
ery system
The fuel tank is full when the filler nozzle clicks 
off the first time. 
Everything from A to Z
134 Fuel display, refer to Fuel 
gauge46
Fuel filler cap92
Fuel filler door92
– releasing in the event of 
electrical malfunction92
Fuel gauge46
Fuel tank contents, refer to 
Filling capacities129
Full preparation package 
mobile phone, refer to 
separate Owner's Manual
Fuses119
G
Garage-door opener, refer to 
Integrated universal remote 
control69
Gasoline
– refer to Fuel quality93
– refer to Fuel 
specifications93
Gasoline display, refer to Fuel 
gauge46
Gear indicator in automatic 
transmission with 
Steptronic40
Gearshift lever, manual 
transmission40
General driving notes84
Glove compartment72
Grills, refer to 
Ventilation65,68
Gross vehicle weight, refer to 
Weights128
Ground clearance87
H
Halogen lamps112
Handbrake39
– indicator lamp39
Hands-free microphone, refer 
to Car phone preparation75
Hand washes108
Hazard warning flashers10
HDC Hill Descent Control52
Head airbags57Headlamp control, 
automatic60
Headlamp flasher41
– indicator lamp12
Headlamps112
– replacing bulbs111
Headlamp washer reservoir
– capacity, refer to Filling 
capacities129
– refer to Washer fluid43
Headlamp washer system
– headlamp washing43
– washer fluid43
Head Light, refer to Adaptive 
Head Light60
Head restraints29
– sitting safely27
Heated mirrors33
Heated rear window
– air conditioner64
– automatic climate control68
Heated seats31
Heated steering wheel34
Heater
– rear window64,68
– windshield washer jets43
Heating
– exterior mirror33
– seats31
– steering wheel34
Heating and ventilation63,66
Heavy cargo, refer to Cargo 
loading85
Height, refer to 
Dimensions127
Height adjustment
– seats28
– steering wheel34
High beams60
– headlamp flasher60
– indicator lamp12
– replacing bulbs113
High Performance Synthetic 
Oil104
High pressure cleaning 
jets108
Hill-climbing ability, refer to 
Driving on poor roads87Hill Descent Control HDC52
Hills85
Holder for beverages72
Hood101
Horn10
Hotel function18
Hot exhaust system84
Hydraulic brake assistant, 
refer to Brake assistant51
Hydroplaning84
I
Icy conditions, refer to 
Outside temperature 
warning48
Ignition38
Ignition key18
Ignition key positions, refer to 
Ignition lock38
Ignition lock38
Imprint2
Indicator/warning lamp
– airbags58
– alarm system25
– automatic transmission with 
Steptronic41
– brakes105
– coolant temperature47
– DSC52
– engine temperature47
– Flat Tire Monitor54
– fog lamps61
– front passenger airbags58
– reserve46
– safety belt warning32
– Tire Pressure Monitor55
Indicator and warning lamps, 
overview12
Individual settings, refer to 
Vehicle Memory, 
Key Memory18
Inflation pressure, refer to Tire 
inflation pressure94
Inflation pressure monitoring, 
refer to
– Flat Tire Monitor54
– Tire Pressure Monitor55