Read and follow the introductory information and
safety information first⇒
Introduction
to the subject
Volkswagen recommends using only genuine Volkswagen deicer spray with lubricating and anticorrosive properties to deice door lock cylinders.

Note
Care of rubber door and window seals
Cleaning the power sunroofVolkswagen Tiguan Service and Repair Manual > Hood, Lids: Fuel Filler Door Unit
Overview - Fuel Filler Door Unit and Adjusting Element
Note
If tank flap does not open, it can be opened by hand via the actuator
-4-.
The actuator can be reached by grabbing between the side panel and
loosened wheelhouse liner.
Fuel Filler Door Unit
Removing and installing
Bolt
...