BMW 7 Owners & Service Manuals

BMW 7 Series: Overview Of Aerial Diversity

Airbag Triggering Unit, Diagnosis Unit
Fig. 101: Overview Of Aerial Diversity

  1. Aerial amplifier
  2. Blocking circuit
  3. AM choke (US vehicles only)
  4. Back - up aerial
  5. Interference suppression filter

OVERVIEW OF SENSORS FOR AIRBAG SYSTEM AND PEDESTRIAN PROTECTION

Airbag Triggering Unit, Diagnosis Unit
Fig. 102: Overview Of Sensors For Airbag System And Pedestrian Protection

  1. Airbag control unit (storage tray, passenger side)
  2. Sensor, front door (left/right)
  3. Sensor, B-pillar (left/right)
  4. Central sensor (under centre console)
  5. Acceleration sensors, front (left/right)
  6. Sensor, pedestrian protection (middle/left/right)

REMOVING AND INSTALLING (REPLACING) LEFT B-PILLAR SENSOR

WARNING: NOTE AIRBAG SAFETY INSTRUCTIONS ! Incorrect handling can activate airbag and cause injury.

Necessary preliminary tasks

  • Clamp off BATTERY NEGATIVE LEAD
  • Remove PANEL FOR DOOR PILLAR.

Release screw (1) on B-pillar (3).

Release screw (2).

Installation:

Tightening torque 65 77 3AZ.

Make sure sensor is mounted without play.

Feed out B-pillar sensor in downward direction.

Airbag Triggering Unit, Diagnosis Unit
Fig. 103: Identifying Screws And B-Pillar

Unfasten plug connection (1) and disconnect.

Remove B-pillar sensor (2).

Airbag Triggering Unit, Diagnosis Unit
Fig. 104: Identifying Plug Connection And B-Pillar Sensor

REMOVING AND INSTALLING (REPLACING) LEFT FRONT DOOR SENSOR

WARNING: Note AIRBAG SAFETY REGULATIONS ! Incorrect handling can activate airbag and cause injury.

Necessary preliminary tasks

  • Remove SOUND INSULATION IN FRONT DOOR

Release screw (1).

Tightening torque 65 77 4AZ.

Feed out sensor towards bottom.

Unlock associated plug connection and disconnect.

Remove sensor.

Airbag Triggering Unit, Diagnosis Unit
Fig. 105: Identifying Screw

Installation note: Make sure front door sensor (1) is in correct installation position.

Guide lug (2) must be correctly seated in corresponding mounting on front door.

 Airbag Triggering Unit, Diagnosis Unit
Fig. 106: Identifying Front Door Sensor And Guide Lug

REMOVING AND INSTALLING (REPLACING) LEFT PEDESTRIAN PROTECTION SENSOR

WARNING: Observe SAFETY INSTRUCTIONS for handling gas generators.

Incorrect handling can activate pedestrian protection and cause injury.

Necessary preliminary work

  • Disconnect BATTERY CABLE
  • Remove ORNAMENTAL GRILLE IN BUMPER TRIM.

Release screws (1).

Tightening torque 65 76 1AZ.

Feed out sensor (2).

Airbag Triggering Unit, Diagnosis Unit
Fig. 107: Identifying Screws And Sensor

Unfasten plug connection (1) and disconnect.

Remove sensor (2).

Airbag Triggering Unit, Diagnosis Unit
Fig. 108: Identifying Plug Connection And Sensor

REMOVING AND INSTALLING/RENEWING RIGHT FRONT DOOR SENSOR

This operation is described in: REMOVING AND INSTALLING (REPLACING) LEFT FRONT DOOR SENSOR

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