218 Driving and operatingEye for break-away stopping cableAttach breakaway stopping cable toeye.Check that the coupling ball bar iscorrectly installed■ Green marking on rotary knob mustpoint towards green marking oncoupling ball bar.■ There must be no gap between therotary handle and the coupling ballbar.■ The coupling ball bar must be firmlyengaged in the opening.■ The coupling ball bar must belocked and the key removed.9 WarningTowing a trailer is permitted onlywhen a coupling ball bar is fittedcorrectly. If the coupling ball bardoes not engage correctly, seekthe assistance of a workshop.Dismounting the coupling ballbarOpen the protective flap and turn thekey to position c to unlock thecoupling ball bar.Pull out rotary handle and turnclockwise as far as it will go. Pull outcoupling ball bar downwards.Insert sealing plug in opening. Foldaway socket.Replace cover, except 3-doorhatchback.Trailer stability assistIf the system detects snakingmovements, engine power is reducedand the vehicle/trailer combination isselectively braked until the snakingceases. While system is working keepsteering wheel as still as possible.Trailer stability assist (TSA) is afunction of the Electronic StabilityControl 3 174.
