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Fuel and Emission control -> Refuelling for Your Volkswagen Transporter Van Seventh Generation (2021-2025)

Refuelling  
Fig. 1 On the left-hand side of the vehicle: tank flap with  
open tank cap.  
Refuelling process  
You must refuel the vehicle only with the fuel grades specified on the fuel information label in the tank flap  
(→ Identification of fuels).  
1. Close the left sliding door.  
2. Open the tank flap.  
Vehicles with tank flap collision protection:You will hear a clicking sound when the tank flap is opened. This is  
normal and does not indicate a technical problem. The left sliding door is blocked and cannot be opened when  
the fuel filler flap is open. You can open the sliding door again only when the tank flap has been closed.  
Vehicles without tank flap collision protection:Keep the left sliding door closed during refuelling→  
3. Turn the tank cap to remove it and place it in the holder in the tank flap→ Fig. 1.  
4. Hold the filler nozzle so that the handle is facing down in order to ensure optimum filling.  
The fuel tank is full when the properly operated automatic filler nozzle clicks off for the first time→  
5. Turn the tank cap onto the tank filler neck until it clicks into place.  
.
.
6. Close the tank flap.  
WARNING  
Overfilling the fuel tank may cause the fuel to splash out and overflow. This can cause fires, explosions and serious  
injuries.  
Do not continue refuelling after the filler nozzle switches off for the first time.  
CAUTION  
Opening the sliding door on the left-hand side can cause injuries and damage the vehicle.  
Make sure that the tank flap is closed before opening the sliding door.  
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Diesel ageing  
Compared to other fuel types, fuels with a high biodiesel content(> 7 vol.%) may have a higher water absorption  
capacity and tend to age (decompose) more rapidly due to lower oxidation resistance. Water and dirt promote  
microbial activity and accelerate fuel ageing, which can lead to the vehicle's fuel system being damaged.  
Perform the following actions to avoid damaging the vehicle’s fuel system.  
If the vehicle is stationaryas from two weeks:  
1. Fill fuel tank to maximum level.  
2. Start the vehicle at least once a week for around five minutes.  
If the vehicle is stationaryas from 45 days:  
1. Diesel fuel in the fuel tank may have aged→  
.
2. You must replace the diesel in the fuel tank and fuel filter before starting the engine again. The diesel and the  
fuel filter should be changed by a suitably qualified workshop.  
NOTICE  
If the diesel fuel contains water or is decomposed and the engine is started, this can cause serious damage to the  
fuel system.  
If water has settled in the fuel filter, it must always be drained.  
Always fill up with high-quality diesel fuel that meets the required specifications.  
Water and diesel fuel must never be disposed of in gardens, forests, sewage systems, roads or paths, rivers  
or running waters. In order to avoid environmental pollution, disposal must be carried out by a suitably  
qualified workshop.  
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