Please note the following for the cleaning and maintenance of the seat covers :

Before getting into the vehicle, close all Velcro fasteners that could touch the cloth seat covers and fabric trims. Open Velcro fasteners can cause damage to cloth seat covers and fabric trims.

Avoid the direct contact of sharp-edged items and accessories to the upholstery and fabric trims in order to prevent damage. Accessories include zips, studs, rhinestones on clothing or belts.

Dust and grit in upholstery pores, folds and seams should be removed regularly so that no permanent damage is caused to the surface of the seats by scratching.

Always check whether garments are colourfast to prevent damage to the upholstery. This is especially important for light-coloured upholstery.

NOTICE
Volkswagen recommends that stained upholstery is cleaned by a specialist company.
Seat covers
Cleaning cloth seat covers, fabric trim and Alcantara® upholsteryTires, Reinforced, Extra Load
Some time ago, the designation “Reinforced” was replaced
with the designation “Extra Load” by some tire manufacturers. In
countries outside Europe, this designation has been conventional
for some time. There are no technical differences.
...
Adhesive/Sealant
Definition:
Adhesive/Sealant -D 511 500 A2-, gray
Adhesive/Sealant -D 511 510 A2-, black
Edition 04/2009
Product Description
Adhesive/Sealant -D 511 50 ...
A/C System, Operating after Charging
Caution
If it is suspected that chemicals were added to the
refrigerant circuit to seal leaks, do not connect the
A/C service station and do not extract the refrigerant.
...