Audi Workshop Service and Repair Manuals

• Head airbag

• ◆ Removing
• ‒ Remove upper A-pillar trim
• ‒ Remove upper B-pillar trim without removing seat belt => Page 70-113
• ‒ Remove upper D-pillar trim => Page 70-118
• ‒ Remove headlining => Page 70-72

• ‒ Remove bolts -3- (2x).
• ‒ Fold front part of head airbag backwards and attach to Velcro fastening (magnified view).
• ‒ Unplug connector -6- for head airbag at 4-pin connector between gas generator and roof => Fig.2
• ‒ Unscrew bolt-4-.
• ‒ Remove bolts -8- (2x).
• ‒ Remove gas generator with locating pin -7- => Fig.4
• ‒ Remove head airbag -1- at grab handles -2-.

• ◆ Installing
• ‒ Before installing the head airbag module, check the contact surface for the head airbag at the threaded bushings on the roof grab handle => Fig.6
• ‒ Check clamp mounts for B-pillar trim before installing B-pillar trim => Fig.7
• ‒ Secure head airbag with pre-retainer clips at grab handle adapters -2- (2x) => Fig.5
• ‒ Secure gas generator with roof frame locating pin -7- => Fig.4
• ‒ Insert bolts -8- (2x), pressing airbag module -1- with one hand at rear roof grab handle bolting point => Fig.1

• ‒ Detach front part of head airbag -1- and fold towards A-pillar; while doing this anti-twist seam -A- must point in direction of centre of vehicle.
• ‒ Insert bolt -3- => Fig.3
• ‒ Remainder of installation is carried out in reverse order of removal.
• ‒ Switch ignition on.

• ‒ Connect battery.

• Grab handle adapter

• Bolts (2x)
• ‒ Tightening torque 4 Nm
• ◆ Self-locking
• ◆ Replace
• ◆ Threaded bores for bolts must always be cleaned (e.g. with a thread tap).
• ◆ If threaded bushings are loose, re-tighten using riveting pliers.
• Bolt
• ‒ Tightening torque 4 Nm
• ◆ Self-locking
• ◆ Replace
• ◆ Threaded bores for bolts must always be cleaned (e.g. with a thread tap).
• ◆ If threaded bushings are loose, re-tighten using riveting pliers.

• Gas generator
• Connector for head airbag
• Locating pin
• Bolts (2x)
• ‒ Tightening torque 4 Nm
• ◆ Self-locking
• ◆ Replace
• ◆ Threaded bores for bolts must always be cleaned (e.g. with a thread tap).
• ◆ If threaded bushings are loose, re-tighten using riveting pliers.

Fig.1    Gas generator to roof frame

• ‒ Screw in bolts -8-.
• ‒ Tightening torque 4 Nm
• ‒ Screw in bolt -4-.
• ‒ Tightening torque 4 Nm

•     1 -    Head airbag
•     5 -    Gas generator
•     6 -    Airbag connector

Fig.2    Detaching connector for head airbag

• ‒ → Press release -A- and unplug connector in direction of arrow.

•     6 -    Connector for head airbag

Fig.3    Head airbag to lower A-pillar

• ‒ → First install lower bolts -B-.
• ‒ Tightening torque 4 Nm

•     1 -    Head airbag
•     3 -    Bolts (2x)
•     A -    Anti-twist seam

Fig.4    Gas generator bracket

• ‒ → Remove gas generator -5- with locating pin -7-.

Fig.5    Securing head airbag at roof grab handle

• ◆ Attachment of roof grab handle is the same at front and rear.

• ‒ → Insert pre-retainer clip -A- into mounting -C-.
• ‒ Insert pins -B- into mounting -D-.
• ‒ Anti-twist seam -E- must face into direction of vehicle centre.

•     1 -    Head airbag
•     2 -    Adapter for grab handle

Fig.6    Checking contact surface for head airbag

• ‒ Before installing any airbag, the sheet metal -2- in the threaded bushing area -1- (4 on each side) must be checked for deformation at the vehicle centre.

• ◆ Illustration shows a contact surface which is OK.

• ‒ Align sheet metal if necessary.

Fig.7    Checking clamp mounts for B-pillar trim

• ‒ Before installing any trim, the sheet metal -2- in the area of the clamp mounts -1- (2 on each side) must be checked.

• ◆ The sheet metal must lie flat on the mounts.
• ◆ Illustration shows a clamp mount which is OK.

• ‒ Align sheet metal if necessary.

Notes:

• ◆ After connecting the battery, please ensure that the vehicle accessories (radio, clock, electric window lifters) are checked according to workshop manual and/or operating instructions.
• ◆ If the fault warning light (K 75) for airbag signals a fault after assembly the fault memory must be erased and again be interrogated by using fault reader V.A.G 1551.

=> Body Self-diagnosis; Repair group 01