First read and observe the introductory information
and safety warnings
Emergency breakaway cable
Always fasten the trailer's emergency breakaway cable properly to the towing vehicle. Leave enough slack in the emergency breakaway cable so that the vehicle can still drive around corners. However, the emergency breakaway cable should not drag along the ground while the vehicle is being driven.
Trailer socket
A 13-pin trailer socket makes the electrical connection between the towing vehicle and the trailer. If the trailer has a 7-pin plug you will need to use an adapter cable.
Rear trailer lights
Ensure that the trailer lights work properly and meet legal requirements. Do not exceed the maximum power consumption for the trailer .
The trailer is connected to the anti-theft alarm:
When the vehicle is locked, the alarm will be triggered as soon as the electrical connection to the trailer is interrupted.
Always switch off the anti-theft alarm when a trailer is being hitched or unhitched. The tilt sensor could otherwise trigger an alarm unnecessarily.

WARNING

NOTICE
Removing the ball coupling
Loading the trailerPrimary Lock
The primary lock is the locking mechanism of an individual
crimp contact in the contact housing.
If necessary, housing securing mechanisms (secondary locks)
must be released or removed using specified tool before
releasing the contacts. ...
6-Pin Universal Oxygen Sensor, Removing and Installing
Note
Use the faulty sensor as a guide for installing all of the
accompanying attachments, cable ties or marking bands.
Do not crimp or cut the wires otherwise the functionality of
the heated oxygen sensor (HO2S) will ...
Introduction
With the ignition switched on, the different display functions can be
accessed via the menus.
There are no buttons on the windscreen wiper lever in vehicles equipped with
a multifunction steering wheel. The multifunction display is controlled using
the buttons on the multifunction steering w ...