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- Fig. 317 Vehicle as seen from the rear right: Opening fuel tank flap
- Fig. 318 Fuel tank flap with tank cap attached
Plug-in hybrid drive*: Please also note the information on link►.
The fuel tank flap is unlocked/locked automatically by the central locking system.
(Applies to vehicles with plug-in hybrid drive: ) Please note the information on link►.
(Applies to vehicles without plug-in hybrid drive: ) Press the left side of the tank flap to open it Fig. 317►.
Unscrew the tank cap anti-clockwise.
Hook the cap onto the open flap Fig. 318►.
Insert the filler nozzle into the fuel filler neck as far as the stop.
Start refuelling. The filler nozzle cuts out as soon as the tank is full. Do not try to put in more fuel after the nozzle cuts out, as this will fill the expansion chamber in the fuel tank.
When the fuel filler pump switches itself off, wait for 5 seconds before pulling out the filler nozzle so that any remaining fuel can flow into the tank opening.
Screw on the tank cap clockwise until it clicks audibly.
Press the left side of the flap to close it (you should hear it click into place).
The correct fuel grade for your vehicle is given on a sticker on the inside of the tank flap. Further notes on fuel link►.
The tank capacity of your vehicle is given in the Technical data section link►.
The fuel tank flap can be released manually if the central locking system fails to open it link►.
Improper refuelling and improper handling of fuel can cause explosions, fire, serious burns and other injuries.
- Do not smoke. Keep naked flames away from the vehicle.
- The ignition must be switched off when refuelling.
- Mobile phones and radio equipment must always be switched off when refuelling. Electromagnetic radiation can cause sparks which could start a fire.
- The auxiliary heating* must be switched off when refuelling.
- Fuel can escape if you do not insert the filler nozzle all the way into the filler neck. Escaping fuel can ignite and cause a fire.
- Never get into the vehicle while refuelling. If you do have to get into the vehicle in exceptional circumstances, close the door and touch a metal surface before handling the filler nozzle again. This will discharge any static electricity which could generate sparks. Sparks can start a fire when refuelling.
We recommend you NOT to carry a spare fuel canister in the vehicle. Fuel could escape from the canister and catch fire, particularly in the event of an accident. Fire, explosions and injuries could result.
- If, in exceptional circumstances, you have to carry a spare fuel canister, please observe the following warnings:
- Always place the spare fuel canister on the ground before filling it. Never fill fuel into the spare fuel canister with the canister placed in or on top of the vehicle. Electrostatic electricity can build up while filling the canister and ignite the fuel vapours.
- When using metal fuel canisters, always keep the filler nozzle in contact with the canister to prevent the build-up of static electricity.
- Keep the filler nozzle inserted as far as possible into the filler opening while filling the canister.
- Observe all relevant statutory regulations on using, storing and transporting spare fuel canisters.
CAUTION
- If fuel overflows onto the vehicle, remove it completely straightaway to prevent damage to the vehicle.
- Never run the tank completely dry. If there is an irregular fuel supply, misfiring can occur. As a result unburnt fuel can enter the exhaust system and cause damage to the catalytic converter(s).
- (Applies to vehicles with diesel engine: ) When filling the fuel tank after having run it completely dry, the ignition must be switched on for at least 30 seconds before the engine is started. When you then start the engine it may take longer than normal (up to one minute) for the engine to start firing. This is because air needs to be bled from the fuel system while starting.
For the sake of the environment
Do not try to put in more fuel after the automatic filler nozzle has switched off; this may cause the fuel to overflow if it becomes warm.
Note
The tank flap is not locked when you lock the vehicle from the inside by pressing the central locking switch.
Note
Fuel can age and cause starting problems. We recommend refuelling your vehicle within six months.
Note
(Applies to vehicles with diesel engine: ) To prevent the tank from being filled with the incorrect type of fuel, only diesel filler nozzles can be inserted in the fuel filler on your vehicle 1). This system ensures that the tank can only be fuelled from a diesel filler nozzle.
- If the filler nozzle is old, damaged or too small, it may not be able to open the protection mechanism on the fuel tank. In this case, try turning the filler nozzle before inserting it in the fuel filler neck, use a different filling pump or seek professional assistance.
- The protection mechanism will not open if you try to add fuel from a spare fuel canister. You can get round this simply by adding the diesel fuel slowly.