Page 301 of 506

299 Operation
At the gas station
At the gas station
Refueling
The fuel filler flap is located on the 
right-hand side of the vehicle towards the 
rear. Locking / unlocking the vehicle with 
the remote control automatically 
locks / unlocks the fuel filler flap.
Turn the engine off 
by turning the SmartKey to 
position0. 
by pressing the KEYLESS-GO* 
start/stop button. Open the driv-
er’s door (with the driver’s door 
open, starter switch is now in 
position0, same as SmartKey re-
moved from starter switch).
Remove the SmartKey from the starter 
switch.
Open the fuel filler flap by pushing at 
the point indicated by the arrow.
The fuel filler flap springs open.
Turn the fuel cap to the left and hold on 
to it until possible pressure is released.
Take off the cap and set it in the recess 
on the fuel filler flap.
To prevent fuel vapors from escaping 
into open air, fully insert filler nozzle 
unit.
Only fill your tank until the filler nozzle 
unit cuts out – do not top up or over-
fill.
Warning!
G
Gasoline and diesel fuel are highly flamma-
ble and poisonous. They burn violently and 
can cause serious injury. Whenever you are 
around gasoline or diesel fuel, avoid inhaling 
fumes and skin contact, extinguish all smok-
ing materials. Never allow sparks, flame or 
smoking materials near gasoline or diesel 
fuel!
!Diesel engine:
When filling the diesel fuel tank using 
fuel containers, place a filling filter, a 
suede cloth or a clean flannel cloth into 
the filler neck to filter the diesel fuel. 
Otherwise, you could clog the fuel 
lines.
 
     
        
        Page 302 of 506

300 OperationAt the gas station
Replace the fuel cap by turning it to the 
right.
You will hear when the fuel cap is tight-
ened.
Close the fuel filler flap.Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas 
or diesel fuel discharge. This could cause 
the gasoline or diesel fuel to spray back out 
when removing the fuel pump nozzle, which 
could cause personal injury.
iLeaving the engine running and the fuel 
cap open can cause the yellow fuel 
tank reserve warning lamp to flash and 
the? malfunction indicator lamp 
(USA only) or the± malfunction in-
dicator lamp (Canada only) to illumi-
nate.
See also “Practical hints” section 
(page 362). 
iGasoline engine:
Only use premium unleaded gasoline 
with a minimum Posted Octane Rating 
of 91  (average of 96 RON / 86 MON). 
Information on gasoline quality can 
normally be found on the fuel pump.
For more information on gasoline, see 
the Factory Approved Service Products 
pamphlet. 
iDiesel engine:
Only use commercially available vehic-
ular diesel fuels No. 2 or No. 1 (ASTM 
D975 No. 2-D or No. 1-D). Information 
on diesel quality can normally be found 
on the fuel pump.
For more information on diesel fuels, 
refer to the Factory Approved Service 
Products pamphlet. iDiesel engine:
If you have driven the vehicle until the 
tank is empty, the fuel system needs to 
be bled (
page 432).
 
     
        
        Page 488 of 506

486 IndexFront airbags 65
Front fog lamp
Replacing bulb 418
Front lamps 418
Messages in display 394
Replacing bulbs 420
Switching on 133
Front seat head restraints
Power seat 123
Removing and installing 123
Front seats
Heater* 127
FSS (Canada vehicles) 343
FSS (Flexible Service System) 473
Fuel 300
Fuel tank reserve warning lamp 362
Premium unleaded gasoline 300
Fuel consumption statistics
After start 170
Since last reset 170Fuel filler flap 299
Locking 299
Unlocking 299
Fuel requirements 466
Fuel reserve tank
Message in display 389
Fuel tank
Filler flap 299
Fuels, coolants, lubricants etc. 461
Functions (control system) 149
Resetting 155
Fuse chart 443
Fuses 443
Fuse chart 443
Fuse extractor 443
Spare fuses 443G
Garage door opener 29, 279
Erasing the integrated remote 
control 284
Integrated remote control 281
Rolling code programming 282
Gasoline see Fuel 300
GAWR 337
Gear range 473
Automatic transmission 177
Limiting 177
Shifting into optimal 176
Gear range limit
Canceling 176
Gear selector lever
Position 178
Global
Locking 100
Locking with KEYLESS-GO* 105
Unlocking 99
Unlocking with KEYLESS-GO* 105
Global Positioning System (GPS) 473
Glove box 262
Closing 262
Opening 262