Removing

• Turn front wheels in straight-ahead position - steering wheel in 0-position.
• Move steering wheel down and to rear as far as possible, making use of full range of steering column adjuster.
• Switch off ignition and all electrical consumers.

Vehicles without access and start authorisation system

• Remove ignition key, if fitted.

Vehicles with access and start authorisation system

• Store the ignition key outside the vehicle to prevent the ignition from being switched on unintentionally.

Continued for all vehicles

• Remove steering wheel .

Note Secure with adhesive tape -2- the spring for airbag/retractor ring with contact ring - F138- -1- in the centre position.

• Remove steering column trim (bottom) .
• Install upper steering column cover .

• Pull out connector locking element -4-, press down release mechanism and unplug electrical connector -3-.
• Pull out connector locking element -1-, press down and unplug electrical connector -2-.

• Disconnect electrical plugs -1, 3, 4 and 8- , then insert the screwdriver -6- as shown in the illustration, and carefully remove the plug connections from the snap arm -7- .
• Unscrew the bolt -5-.
• Release retaining tabs -2- -arrow- and detach steering column electronics control unit - J527- from steering column switch module.

Note The exact assignment should be gleaned from the latest current flow diagram .

Installing

Installation is carried out in the reverse sequence; note the following:

• Before pushing steering column electronics control unit - J527- -3- on, check the following:
  • The "arrows" -1- must face each other.
  • Coil connector -2- must be visible through window between "arrows" -4-.
• Make sure all electrical connectors are properly engaged.