72 12 060 Removing and Installing/Replacing Left or Right Head Airbag
72 12 060 - Removing and installing or replacing left or right head airbag
Special tools required:
- 72 1 200 72 1 200 Holder
Warning!
Read and comply with safety regulations for handling airbag modules and pyrotechnical belt tensioners.
Incorrect handling can activate airbag and cause injury.
Necessary preliminary tasks:
- Disconnect negative battery cable 61 20 900 Disconnecting and Connecting Battery Negative Lead
- Follow instructions 72 12 ... Unlocking/Locking Airbag Plug Connections for unlocking and locking airbag plug connections
- Remove roofliner 51 44 011 Removing And Installing/Replacing Headliner (With Slide/Tilt Sunroof)
Important!
Lay out protective mats to protect the interior against chips from the drilled-off rivets and damage.
Lay out protective mats in the relevant working area:
- Instrument panel
- Entrance area
- Passenger compartment
Overview of head airbag:
Head airbag installation summary:
- When removing blind rivet 3 or 8, 100 % foaming is necessary
- When removing blind rivet 4, also replace blind rivets 3 and 5
- When removing blind rivet 7, also replace blind rivet 6
- In the event of a bent or faulty pin or apparent riveting when the gas generator is removed, it will be necessary to replace the complete head airbag
Note:
It is permitted to replace individual rivets without replacing the complete head airbag.
Rivet heads 1, 2, 4 and 7 can be collected with special tool 72 1 200 72 1 200 Holder.
Rivet heads 3 and 8 cannot be accessed with special tool; cavity has to be filled with foam beforehand.
Rivet heads 5 and 6 - no special tool required.
Drill off rivet plate down to rivet shank with a 10 mm twist drill bit.
Important!
Risk of damage to holders and folding pack.
Carefully lever out holders for folding pack with plastic wedge from body.
Remove gas generator with B-pillar ramp.
Cut off blind rivet shanks down to sheet metal as level as possible.
Deburr remaining rivets with nipper pliers.
Installation Note:
Apply primer to damaged paintwork on side frame.
Removing rivet heads 5 and 6:
Stabilize metal tab with screwdriver (1).
Drive out rivet head with 6 mm punch.
Removing rivet heads 1, 2, 4 and 7:
Special tool 72 1 200 72 1 200 Holder for collecting rivet remnants.
Shank of special tool is flexible and can be adapted to the relevant body contours.
Note:
Insert butyl in collecting tray to secure rivet remnants against falling out.
Insert special tool 72 1 200 72 1 200 Holder through bore in body below retaining point.
Position special tool from rear on rivet head in cavity.
Note:
Make sure collecting tray is correctly seated on rivet head.
A second person will be needed to help hold the special tool on the rivet head during the driving-out operation.
Drive out stem with hammer and 6 mm punch.
Carefully feed special tool out of body so that rivet head does not fall out of collecting tray.
Note:
If the rivet falls out of the collecting tray into the side frame when the special tool is fed out, this area must be generously filled with foam.
For details of procedure for filling cavities with foam, see further work steps.
Use cavity sealant (refer to BMW Parts Service) for foam filling.
Cavity foam (refer to BMW Parts Service) can also be used if necessary.
Preparing tube for foam can:
Slide tube (1) at least 6 cm into tube (2).
Cut end of tube (1) at an angle.
Apply marking (3) 15 cm from end of tube.
Fit tube to foam can.
Warning!
Empty foam can completely onto cardboard and after hardening dispose of foam and can in residual waste.
Can may burst if not completely emptied.
Filling rivet heads 3 and 8 with foam:
Slide in tube through A-pillar hole up to marking from the top down.
Fill cavity in an operation lasting 5 seconds.
Insert tube through screw fastening point for B-pillar seat belt and slide in upwards up to marking.
Fill cavity in an operation lasting 3 seconds.
Driving through rivet heads 3 and 8:
Drive out rivet head with a 6 mm punch.
Rivet remnants drop into foam nest (1) in B-pillar cavity and remain there.
Drive out rivet head with a 6 mm punch.
Rivet remnants drop into foam nest (1) in A-pillar cavity and remain there.
Overview of rivet gun:
Riveting of gas generator housing and holders for folding pack with rivet gun.
The interchangeable head is changed for the different work operations.
Riveting of gas generator housing with:
1.) - 17/36 nosepiece and short shank
Riveting of holders for folding pack:
2.) - 17/40 nosepiece and long shank
Sequence of riveting process for head airbag:
Gas generator riveted twice with blind rivet dia. 6 mm.
1. Rivet bore
2. Rivet elongated hole
Holders for folding pack riveted 7 times with blind rivet dia. 6.4 mm.
Installation Note:
Avoid rivet inclination.