Passenger Airbag Unit: Installing

-- Install in reverse order of removal.

NOTE:

Insert the screws -2- and -3- (9 Nm) with locking compound D 197 300 A1.

Fig 1: Identifying Passenger Airbag -4- And Bolts -1 To 3-

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Check whether an additional ground cable must be routed in the vehicle:

WARNING:

If a passenger airbag is replaced, an additional ground cable must be routed in the vehicle in some cases.

-- Check whether a ground cable is routed on the passenger airbag housing:

With a passenger airbag with ground line -1-, the wiring harness -2- is a three-conductor harness, and in addition, another cable -3- is secured on the threaded pins -4-.
With a passenger airbag without ground line -5-, the wiring harness -6- is a two-connector harness and no additional cable is secured on the threaded pins -7-.

Fig 2: Identifying Passenger Airbag Ground Line And Wiring Harnesses

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On a passenger airbag without ground cable, route an additional ground cable in vehicle:

NOTE:

For the following work, use a cable (cross-section 1 mm, length 600 mm) from the Wiring Harness Repair Kit VAS 1978 or Wiring Harness Repair Kit VAS 1978A.

-- Remove the right B-pillar upper trim. Refer to B-PILLAR UPPER TRIM, LOOSENING FROM MOUNTS AND SECURING

-- Remove the lower trim on the right B-pillar. Refer to LOWER B-PILLAR TRIM

-- Remove passenger side A-pillar trim. Refer to PASSENGER SIDE LOWER A-PILLAR TRIM

-- Secure end of ground line with bolt -1- on right side of passenger airbag.

-- Route ground line correctly to right side of passenger footwell.

NOTE:

Lengthen the ground cable as needed with suitable instruments from the Wiring Harness Repair Kit VAS 1978 or the Wiring Harness Repair Kit VAS 1978A.

-- Secure other end of ground cable to ground pin -2-.

Fig 3: Identifying Ground Line Bolt -1- And Ground Pin -2-

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-- Switch on ignition.

WARNING:

Make sure no one is in the vehicle.

-- Connect the battery. Refer to [For transmission(s) 0A6, 09M] Removal and Installation