First read and observe the introductory information
and safety warnings 
The lane departure warning system (Lane Assist) should be switched off due to system limitations in the following situations:
FunctionRemoving and installing steering wheel multifunction buttons -E441-/-E440-
Special tools and workshop equipment
required
Removal wedge -3409-, qty. 2
Lever -T10468-
...
Introduction
This chapter contains information on the following subjects:
→ Opening or closing the windows electrically  
→ Electric windows – functions  
→ Roll-back function for the electric windows  
Additional information and warnings:
Volkswagen information system â ...
Restrictor
The restrictor creates a restriction. This restriction
limits the flow, separating the high-pressure and low-pressure
sides in the refrigerant circuit. Upstream of the restrictor,
the refrigerant is warm due to the high pressure. Downstream of
the restri ...