Audi A3  Setting off  Towing a trailer  Removable towing bracket
Applies to vehicles: with removable towing bracket
Check that the green marking -6- Fig. 1 on the knob is inside the green zone on the ball joint.
Check that the knob is directly against the ball joint, so that there is no gap -7- between the knob and the ball joint.
Check that the ball joint is locked and the key is removed (so that the knob cannot be pulled out).
Check that the ball joint fits tightly in the mounting fixture (try moving it about to check).
To plug in the electrical connection for the trailer, swivel the connecting socket down from underneath the bumper -A- Fig. 2.
When you hitch a trailer up to your vehicle, hook the safety cable into the eye on the towing bracket -B- Fig. 2.
If the safety check is not satisfactory, the ball joint must be fitted again properly.
WARNING!
To avoid accidents, the towing bracket must not be used if any one of the requirements listed above is not met. If this is the case, the ball joint must be fitted again properly Link. Please contact a qualified workshop in the event of a technical fault.
Note
The eye -B- on the towing bracket is intended only for securing the safety cable of the trailer.

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