The mechanically swivelling trailer hitch can be conveniently locked and unlocked using a release mechanism. Further benefits: ball head, mechanically swivelling with electric unlocking, ball coupling and ball head made from forged steel, operation via a button in the luggage compartment, trailer stabilisation via the Electronic Stabilisation Control (ESC) function. The integrated swivelling system socket enables continuous operation of electrical equipment in the trailer or caravan during a journey and can be swivelled out of sight under the bumper apron when not in use. 13- to 7-pin adaptor may be required – please consult your Audi Centre for details and pricing