88C-5
AIR BAG AND PRETENSIONERS
Airbag computer: Removal - Refitting
88C
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the airbag computer,
-the computer nuts.
aTorque tighten the airbag computer nuts (8 Nm).
aConnect the airbag computer connector.
aLock the airbag computer connector.
aReplace the airbag computer's protective housing
with a new one.
II - FINAL OPERATION.
aPull down the carpet.
aAttach the carpet using clips (part no. 77 01 047
751).
aRefit the centre console ( (see Centre console: Re-
moval - Refitting) ).
aConnect the battery (see 80A, Battery, Battery: Re-
moval - Refitting, page 80A-2) .
aIf the airbag computer has been replaced, carry out
the necessary operations using the Diagnostic tool
(see MR 413 Fault finding, 88C, Airbags and seat
belt pretensioners, Fault finding - Replacement
of components).
aUnlock the airbag computer using the Diagnostic
tool (see MR 413 Fault finding, 88C, Airbags and
pretensioners, Fault finding - Replacement of
components). IMPORTANT
To avoid a fault with or even triggering of pyro-
technic components (airbags or pretensioners),
check the airbag computer using the diagnostic
tool.
88C-6
AIR BAG AND PRETENSIONERS
Driver's frontal airbag: Removal - Refitting
88C
REMOVAL
I - REMOVAL PREPARATION OPERATION
a
aLock the airbag computer using the Diagnostic tool
(see MR 413 Fault finding, 88C, Airbags and seat
belt pretensioners, Fault finding - Replacement
of components).
aDisconnect the battery (see 80A, Battery, Battery:
Removal - Refitting, page 80A-2) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aTurn the steering wheel one half-turn.aRemove the driver's front airbag by opening (1) the
clips (2) using a flat-blade screwdriver. Equipment required
Diagnostic tool
IMPORTANT
Consult the safety and cleanliness advice and ope-
ration recommendations before carrying out any
repair (see 88C, Air bag and Pretensioners, Air-
bag and pretensioners: Precautions for the
repair, page 88C-1) .
IMPORTANT
To avoid any risk of triggering when working on
or near a pyrotechnic component (airbags or pre-
tensioners), lock the airbag computer using the
diagnostic tool.
When this function is activated, all the trigger
lines are inhibited and the airbag warning light on
the instrument panel lights up continuously (igni-
tion on).
IMPORTANT
Never handle the pyrotechnic systems (preten-
sioners or airbags) near to a source of heat or
naked flame - they may be triggered.
119481
119496
88C-8
AIR BAG AND PRETENSIONERS
Passenger's frontal airbag: Removal - Refitting
88C
REMOVAL
I - REMOVAL PREPARATION OPERATION
a
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of components)
(88C, Airbags and pretensioners).
aDisconnect the battery (see 80A, Battery, Battery:
Removal - Refitting, page 80A-2) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aOpen the dashboard glovebox.
aUnclip the access flap (1) to the passenger's front
airbag connector.
aRemove:
-the nuts (2) of the tie rod between the bulkhead
and the dashboard cross member, Equipment required
Diagnostic tool
Tightening torquesm
passenger front airbag
nuts21 Nm
nuts of the tie rod side
on the bulkhead side8 Nm
IMPORTANT
Consult the safety and cleanliness advice and ope-
ration recommendations before carrying out any
repair (see 88C, Air bag and Pretensioners, Air-
bag and pretensioners: Precautions for the
repair, page 88C-1) .
IMPORTANT
To avoid any risk of triggering when working on
or near a pyrotechnic component (airbags or pre-
tensioners), lock the airbag computer using the
diagnostic tool.
When this function is activated, all the trigger
lines are inhibited and the airbag warning light on
the instrument panel lights up continuously (igni-
tion on).
IMPORTANT
Never handle the pyrotechnic systems (preten-
sioners or airbags) near to a source of heat or
naked flame - they may be triggered.
119519
K9K – D4F, and 780
127744
88C-10
AIR BAG AND PRETENSIONERS
Passenger's frontal airbag: Removal - Refitting
88C
REFITTING
I - REFITTING PREPARATION OPERATION
aAlways replace the passenger's airbag nuts.
II - REFITTING OPERATION FOR PART
CONCERNED
aFit the passenger front airbag into its housing.
aRefit new nuts of the passenger's front airbag.
aTorque tighten the passenger front airbag nuts
(21 Nm).
aClip the passenger front airbag onto the dashboard.
aConnect the passenger front airbag connector.
aLock the passenger front airbag connector.
aFit the wiring in the position that was marked when
dismantling the passenger's front airbag.aRefit the tie rod between the bulkhead and the dash-
board cross member.
aTorque tighten the nuts of the tie rod side on the
bulkhead side (8 Nm ).
aClip the flap of the dashboard glovebox.
III - FINAL OPERATION.
aConnect the battery (see 80A, Battery, Battery: Re-
moval - Refitting, page 80A-2) .
aUnlock the airbag computer using the Diagnostic
tool (see Fault finding - Replacement of compo-
nents) (88C, Airbags and pretensioners).
(see 88C, Air bag and Pretensioners, Airbags
and pretensioners: Recycling - Destruction,
page 88C-2) . IMPORTANT
After a seat belt pyrotechnic component is trigge-
red, it is essential to replace certain parts.
(see 88C, Air bag and Pretensioners, Airbag
and pretensioners: Precautions for the repair,
page 88C-1) .
IMPORTANT
When the passenger front airbag is triggered, the
consequent damage caused to the mountings
always requires the dashboard to be replaced.
Affix the label warning against fitting a rear-facing
child seat on the front passenger seat to the pas-
senger side of the dashboard.
Note:
Check that the passenger's front airbag is braced
against the dashboard cross member.
WARNING
To prevent damage to the wiring har ness when
refitting, observe the original routing.
K9K – D4F, and 780
IMPORTANT
To avoid a fault with or even triggering of pyro-
technic components (airbags or pretensioners),
check the airbag computer using the diagnostic
tool.
IMPORTANT
To eliminate the risk of any accident, do not
reuse pyrotechnic components.
It is essential to destroy pretensioners or airbags
before scrapping a vehicle or the single part.
88C-11
AIR BAG AND PRETENSIONERS
Front (chest-level) side airbag: Removal - Refitting
FRONT SIDE AIRBAG, and REAR AIRBAG 01
88C
The front chest airbag is fixed to the lower section of
the seatback of each front seat on the door side.
When it is deployed, the inflatable bag tears the modu-
le cover and the foam and detaches the trim.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of components)
(MR 413, 88C, Airbags and pretensioners).
aDisconnect the battery (see 80A, Battery, Battery:
Removal - Refitting, page 80A-2) .
aRemove:
-the complete front seat (see Complete front seat:
Removal - Refitting) (MR 412, 75A, Front seat fra-
mes and runners),-the front seat seatback trim (see Front seatback
trim: Removal - Refitting) (MR 412, 77A, Front
seat trim). Equipment required
Diagnostic tool
IMPORTANT
Consult the safety and cleanliness advice and ope-
ration recommendations before carrying out any
repair (see 88C, Air bag and Pretensioners, Air-
bag and pretensioners: Precautions for the
repair, page 88C-1) .
IMPORTANT
To prevent any accidental triggering whilst wor-
king on or near a pyrotechnic component (air-
bags or pretensioners), lock the airbag computer
using the Diagnostic tool.
When this function is activated, all the trigger
lines are inhibited and the airbag warning light on
the instrument panel lights up continuously (igni-
tion on).
IMPORTANT
Never handle the pyrotechnic systems (preten-
sioners or airbags) near to a source of heat or
naked flame - they may be triggered.
88C-13
AIR BAG AND PRETENSIONERS
Front (chest-level) side airbag: Removal - Refitting
FRONT SIDE AIRBAG, and REAR AIRBAG 01
88C
aConnect the battery (see 80A, Battery, Battery: Re-
moval - Refitting, page 80A-2) .
aUnlock the airbag computer using the Diagnostic
tool (see Fault finding - Replacement of compo-
nents) (MR 413, 88C, Airbags and pretensioners).
(see 88C, Air bag and Pretensioners, Airbags
and pretensioners: Recycling - Destruction,
page 88C-2) . IMPORTANT
To prevent the pyrotechnic components from
being permanently deactivated or triggered (air-
bags or pretensioners), check the airbag compu-
ter using the Diagnostic tool
IMPORTANT
To eliminate the risk of any accident, do not
reuse pyrotechnic components.
It is essential to destroy pretensioners or airbags
before scrapping a vehicle or a part only.
88C-14
AIR BAG AND PRETENSIONERS
Side curtain airbag: Removal - Refitting
FRONT SIDE AIRBAG, and REAR AIRBAG 01
88C
The side curtain airbag is mounted behind the headli-
ning.
The airbag detaches the headlining when it inflates.
REMOVAL
I - REMOVAL PREPARATION OPERATION
a
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of components)
(MR 413, 88C, Airbags and pretensioners).
aDisconnect the battery (see 80A, Battery, Battery:
Removal - Refitting, page 80A-2) .
aRemove:
-the front seat belt upper bolt (see Front seat belt:
Removal - Refitting) (MR 412, 59A, Safety equip-
ment),-the rear seat belt upper bolt (see Rear seat belt:
Removal - Refitting) (MR 412, 59A, Safety equip-
ment),
-the sun visors (see Sun visor: Removal - Refit-
ting) (MR 412, 57A, Interior equipment),
-the interior rear-view mirror covers (see Interior
rear-view mirror: Removal - Refitting) (MR 412,
57A, Interior equipment),
-the A-pillar trims (see Windscreen pillar trim: Re-
moval - Refitting) (MR 412, 71A, Body internal
trim),
-the rear parcel shelf side trims (see Rear parcel
shelf side trim: Removal - Refitting) (MR 412,
71A, Body internal trim),
-the rear panel trims (see Rear panel lining: Re-
moval - Refitting) (MR 412, 71A, Body internal
trim),
-the rear quarter panel trims (see Quarter panel
trim: Removal - Refitting) (MR 412, 71A, Body in-
ternal trim),
-the B-pillar upper trims (see B-pillar upper trim:
Removal - Refitting) (MR 412, 71A, Body internal
trim),
-the headlining (see Headlining: Removal - Refit-
ting) (MR 412, 71A, Body internal trim). Equipment required
Diagnostic tool
Tightening torquesm
curtain airbag bolt8 Nm
IMPORTANT
Consult the safety and cleanliness advice and ope-
ration recommendations before carrying out any
repair (see 88C, Air bag and Pretensioners, Air-
bag and pretensioners: Precautions for the
repair, page 88C-1) .
IMPORTANT
To prevent any accidental triggering whilst wor-
king on or near a pyrotechnic component (air-
bags or pretensioners), lock the airbag computer
using the Diagnostic tool.
When this function is activated, all the trigger
lines are inhibited and the airbag warning light on
the instrument panel lights up continuously (igni-
tion on).
IMPORTANT
Never handle the pyrotechnic systems (preten-
sioners or airbags) near to a source of heat or
naked flame - they may be triggered.
88C-18
AIR BAG AND PRETENSIONERS
Side impact sensor: Removal - Refitting
FRONT SIDE AIRBAG, and REAR AIRBAG 01
88C
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of components)
(MR 413, 88C, Airbags and seat belt pretensioners).
aDisconnect the battery (see 80A, Battery, Battery:
Removal - Refitting, page 80A-2) .
aRemove the complete front seat (see Complete
front seat: Removal - Refitting) (MR 412, 75A,
Front seat frames and runners).Equipment required
Diagnostic tool
Tightening torquesm
impact sensor bolt8 Nm
IMPORTANT
Consult the safety and cleanliness advice and ope-
ration recommendations before carrying out any
repair (see 88C, Air bag and Pretensioners, Air-
bag and pretensioners: Precautions for the
repair, page 88C-1) .
IMPORTANT
To prevent any accidental triggering whilst wor-
king on or near a pyrotechnic component (air-
bags or pretensioners), lock the airbag computer
using the Diagnostic tool.
When this function is activated, all the trigger
lines are inhibited and the airbag warning light on
the instrument panel lights up continuously (igni-
tion on).