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 trailerRun-Flat Tire (PAX), Lettering On Side Wall
In contrast to conventional tires, other designations are
found on the tire flanks of PAX tires. In this way, these tires
can be allocated clearly.
PAX Tires, Designations
245  ...
Releasing and Disassembly Contact Housings, General Information
Note
Observe general notes for repairs on the vehicle electrical
system. Refer to
→ Chapter „Vehicle Electrical System, General Repair
Information“.
Always use the release tools intended for the ...
Introduction
This chapter contains information on the following subjects:
→ Running-in
→ Accessories and parts
→ Service fluids and consumables
→ Repairs and technical modifications
→ Repairs and faults in the airbag system
→ Retrofitting two-way radios ...