First read and observe the introductory information
and safety warnings
Please follow these rules to help prevent damage to your vehicle when driving through water, for example if the road is flooded:

WARNING

NOTICE
Checklist
Technical dataNuts and bolts
Loosen and tighten bolts and securing nuts for covers and
housings diagonally.
Avoid canting particularly sensitive parts such as comtrol
motor with control unit. Loosen and tighten them diagonally in
stages.
...
Contact corrosion
Contact corrosion can occur if unsuitable connecting
elements (screws, bolts, nuts, washers, etc.) are used.
For this reason, only connecting elements with a special
surface coating are fitted in the vehicle.
Moreover, c ...
Removing and installing roof aerial -RX5-
Special tools and workshop equipment
required
Torque wrench -V.A.G 1783-
Note
Aerial wirings are directly plugged at the base of roof
aerial -RX5-.
...