Removing and installing parking aid J446

Removing

• 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

• Depending on the configuration, remove the knee airbag on driver's side.
• Remove footwell vent on driver's side.
• Disconnect the electrical plugs -1 and 2- , press the safety catch, turn the retention bracket and remove the plug.
• Disengage retaining tab -arrow- and remove control unit -3- downwards from retainer.

Installing

Installation takes place in reverse order.

Remove and install the control unit holder for - J446- the parking assist

Special tools and workshop equipment required

• Gauge

Removing

• With the ignition switched off, disconnect battery earth cable.
• Remove control unit for parking aid - J446- .
• Remove fuse holder C and move to one side.
• Insert a 0.9 mm feeler -2- behind the opening -Arrow- as shown in the illustration.
• Remove bracket -1- downwards from bracket for onboard supply control unit -3-.

Installing

Installation takes place in reverse order.

Removing and installing warning buzzers for front parking assist H22

Removing

• 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

• Depending on the configuration, remove the knee airbag on driver's side .
• Remove footwell vent on driver's side .
• Release the front parking aid warning buzzer - H22- -3- from its mount -1- using a narrow screwdriver -2- -arrow-.
• Detach the front parking aid warning buzzer - H22- .
• Unplug the electrical connector -4-.

Installing

Installation takes place in reverse order.