This chapter contains information on the following subjects:
→ Petrol
→ Diesel
→ Autogas
Different engines require different fuels. The factory-fitted sticker on the inside of the tank flap indicates the fuel type that is required for your particular vehicle.
Volkswagen recommends using low-sulphur or sulphur-free fuels, to help reduce fuel consumption and prevent damage to the engine.
If the engine is not running smoothly or begins to judder, this can indicate poor or inadequate fuel quality, e.g. water in the fuel. If these symptoms appear, reduce the vehicle speed immediately and drive to the nearest qualified workshop at medium engine speeds, avoiding high engine loading. If these symptoms occur immediately after the vehicle has been refuelled, switch the engine off as soon as it is safe to do so and seek expert assistance. This can help to prevent further damage.
Additional information and warnings:

WARNING
Fuel
PetrolVehicle Registration Documents Since 01/10/2005
The implementation of EU guideline 1999/37/EG "Vehicle
registration documents" in national legislation and legal data
protection requirements have made the introduction of new, fraud
resistant registration documents necessary.
...
Acoustic and optical ParkPilot signals at the rear of the vehicle
Fig. 121 ParkPilot screen display (colour)
Fig. 122 ParkPilot screen display (monochrome)
First read and observe the introductory information
and safety warnings
Key for displays
and
Meaning
Ⓐ
Scanned area ...
Restrictor
Caution
Non-approved tools or materials such as leak sealing
additives can cause damage or malfunctions in the
system.
Only use tools and materials approved by the
manufactu ...