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Work on cars with airbag system

Work on cars with airbag system

Welding

Disconnect the battery's negative cable and cover it before starting any welding work.

Painting

Before painting, cover the ground connections and weld bolts in the airbag control module retaining bracket with masking tape to ensure the integrity of the control module's ground connection.

Electrical work

Electric cables in the airbag system must not be spliced. Splicing can be the cause of system malfunctions which could result in injury or render the system unserviceable.

Fault diagnosis

For handling instructions see Fault diagnosis strategy for electronic system .

Work on the car body

If work on the car body involves hammering and other impacts, the ignition switch must be in the OFF position.

Work on the steering gear

If any work is carried out when the coil spring (contact roller) is fitted and the steering column shaft is not connected to the steering gear, the steering wheel must be locked in position so that the basic setting of the coil spring will not be altered.

Warning

If the basic setting of the coil spring is altered, the spiral conductor in the coil spring will break when the steering wheel is turned to full lock. The airbag will then fail to work in the event of an accident, with the consequent risk of serious injury to the driver.


Scrapping and recycling

To prevent damage when scrapping cars with airbags and belt tensioners, untriggered airbags and belt tensioners must be rendered unusable by electrical detonation as described below before the car is scrapped, see Scrapping cars with airbags and belt tensioners, 4D new or Scrapping cars with airbags and belt tensioners, CV .

These safety measures are essential, as the pyrotechnical units can cause serious injury and material damage if handled unprofessionally.

For scrapping and recycling the car, see Service Manual 8:7.

In connection with the repair of crashed cars

When repairing accident-damaged cars, it is important that the right components are checked and replaced, to avoid doubt concerning the car's reliability after repair. For further information on repair and replacement of components in accident-damaged cars, see Checking safety components when repairing accident-damaged cars .