First read and observe the introductory information
and safety warnings
Volkswagen recommends that you seek advice from a Volkswagen dealership before purchasing accessories, spare parts or service fluids. For example, if the vehicle is to be retrofitted with accessories or if parts have to be renewed. Volkswagen dealerships can recommend accessories, parts and service fluids suitable for your requirements. They can also answer any questions you might have regarding official regulations.
Volkswagen recommends that you only use approved Volkswagen accessories and Volkswagen Genuine Parts® . These parts and accessories have been specially tested by Volkswagen for suitability, reliability and safety. And Volkswagen dealerships are qualified to install them correctly.
Although the market is constantly scrutinised, Volkswagen cannot assume responsibility for the reliability, safety and suitability of products Volkswagen has not approved. Volkswagen can therefore assume no responsibility for these parts, even if they have been approved by an official testing agency or are covered by an official approval certificate.
Any retrofitted equipment which has a direct effect on the vehicle and/or the way it is driven must be approved by Volkswagen for use in your vehicle and bear the e mark (the European Union's authorization symbol). These devices include cruise control systems or an electronically controlled suspension.
Any additional electrical components fitted that do not serve
to control the vehicle itself must bear the
mark (manufacturer conformity
declaration in the European Union). Such devices include refrigerator boxes, laptops
and ventilator fans.

WARNING
Running-in
Service fluids and consumables4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing
Note
Do not repair the heated oxygen sensor wires. Repairing may
result in malfunctions.
Use the faulty sensor as a guide for installing all of the
accompanying attachments, cable ties or marking bands.
...
Introduction
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
ve ...
General Information
Perform a road test to determine if a vehicle pulls to one
side and if so, when and to which side. If the vehicle pulls to
one side. Refer to
→ Chapter „Corrective Action When Vehicle Pulls to One Side“.
If the vehicle ali ...