88A-78
WIRING HARNESS
Rear bumper wiring: Removal - Refitting
88A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aSwitch off the ignition.
aDisconnect the battery (see 80A, Battery, Battery:
Removal - Refitting, page 80A-2) .
aRemove the rear bumper (see Rear bumper: Re-
moval - Refitting) (MR 412, 55A, Exterior protec-
tion).
II - OPERATION FOR REMOVAL OF PART
CONCERNED
a
aDisconnect the license plate light connectors.aDisconnect the rear proximity radar connectors (1) .
a
aRemove the rear bumper wiring.
REFITTING
I - REFITTING PREPARATIONS OPERATION
aIf replacing with more wiring, lock the unused con-
nectors (see Connector: Sealing and immobilisa-
tion) (Technical Note 6015A, 88A, Wiring).
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the rear bumper wiring.
aConnect the rear proximity radar connectors.
aConnect the number plate light connectors. IMPORTANT
Consult the safety and cleanliness advice and ope-
ration recommendations before carrying out any
repair (see 88A, Wiring harness, Wiring: Precau-
tions for the repair, page 88A-2) .
121371
WARNING
To prevent any risk of noise, premature wear,
short circuits, etc. after the refitting operation,
mark the wiring routing and how to connect the
connectors.
REAR PROXIMITY RADAR
121371
WARNING
To prevent any damage during the removal ope-
ration, check that the wiring is free from its moun-
tings (retaining clip, plastic clip, adhesive tape,
connector, etc.).
REAR PROXIMITY RADAR
88C-1
AIR BAG AND PRETENSIONERS
Airbag and pretensioners: Precautions for the repair
88C
I - PRECAUTIONS FOR REPAIR
When working underneath the vehicle (on the bo-
dywork, sill panel, etc.) or for certain operations invol-
ving removal or refitting of seat trims, it is essential to
lock the airbag computer using the Diagnostic tool
and to disconnect the battery (see 80A, Battery, Bat-
tery: Removal - Refitting, page 80A-2) .The pyrotechnic systems (pretensioners and airbags)
must be checked using the Diagnostic tool :
-after an accident,
-after theft or attempted theft of the vehicle,
-before selling a used vehicle.
II - TRIGGERING OF THE SAFETY SYSTEMS
After detection of an impact, the airbag computer locks
definitively and the « airbag fault » warning light is illu-
minated on the instrument panel. The airbag computer
and the side impact sensors must always be replaced.
III - DURABILITY OF THE PYROTECHNIC
COMPONENTS
The precautions which recommended that pyrotechnic
components (airbags and pretensioners) were repla-
ced 10 years after the registration of the vehicle have
now been lifted.
Pyrotechnic components (airbags and pretensioners)
do not therefore require any maintenance. Equipment required
Diagnostic tool
IMPORTANT
All operations on airbag and pretensioner systems
must be carried out by qualified trained personnel.
The airbags have a pyrotechnic gas generator, with
an ignition module and bag which must not be
separated.
The pretensioners have a pyrotechnic gas genera-
tor and an igniter which must, under no circumstan-
ces, be separated.
IMPORTANT
Never handle the pyrotechnic systems (pretensio-
ners or airbags) near to a source of heat or naked
flame - they may be triggered.
IMPORTANT
To prevent any accidental triggering whilst w orking
on or near a pyrotechnic component (airbags 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 ins-
trument panel lights up contin uously (ignition on).
(see Fault finding - Replacement of compo-
nents) (88C, Airbag and pretensioners).
IMPORTANT
To prevent the pyrotechnic components from being
permanently deactivated or triggered (airbags or
pretensioners), check the airbag computer using
the Diagnostic tool.
IMPORTANT
In order to prevent interference with the deployment
of the airbags:
-do not fit a cover to the front seats,
-do not place objects in the area of deployment.
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 (see 88C,
Air bag and Pretensioners, Airbags and preten-
sioners: Recycling - Destruction, page 88C-2) .
88C-3
AIR BAG AND PRETENSIONERS
Airbags and pretensioners: Recycling - Destruction
88C
aConnect:
-the adapter to the destruction tool (Ele. 1287),
-the adapter to the airbag.
aPut the airbag on two wooden blocks.
aThe destruction procedure is carried out in a stack of
old tyres.
aMake sure that the airbag deployment will not be
hindered.
aUnwind the full length of the wiring for the tool, in or-
der to distance it as far away as possible from the
pyrotechnic component to be destroyed.aConnect the two feed wires of the destruction tool
(Ele. 1287) to a battery.
aDestroy the airbag by pressing the two push buttons
on the tool simultaneously.
II - PYROTECHNIC PRETENSIONERS AND INERTIA
REELS
1 - Destruction of part fitted on the vehicle to be
scrapped:
aMove the vehicle outside the workshop.
aMark the adapter corresponding to the pyrotechnic
component to be destroyed.
aConnect:
-the destruction tool (Ele. 1287) to the adapter,
-the adapter to the pyrotechnic component.
aUnwind the tool wiring fully, so that you are far enou-
gh away from the vehicle (approximately ten metres)
when the device is triggered.
aConnect the two feed wires of the destruction tool
(Ele. 1287) to a battery.
aDestroy the pyrotechnic component by pressing the
two push buttons on the tool simultaneously.
2 - Destruction of part removed from the vehicle:
aProceed in the same way as for an airbag (in a stack
of old tyres).
96834
96835
IMPORTANT
To prevent any risk of an accident when des-
troying a pyrotechnic component, check that no-
one is in the vicinity.
IMPORTANT
To prevent any risk of an accident when des-
troying a pyrotechnic component, check that no-
one is in the vicinity.
88C-4
AIR BAG AND PRETENSIONERS
Airbag computer: Removal - Refitting
88C
REMOVAL
I - REMOVAL PREPARATION OPERATION
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) .
aRemove the centre console ( (see Centre console:
Removal - Refitting) ).
aCut the carpet (1) and soundproofing using a sectio-
ning tool.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the protective housing (2) from the airbag
computer.
aRemove the airbag computer nuts (3) .
aExtract the airbag computer.
aDisconnect the airbag computer connector.
aRemove the airbag computer. Equipment required
Diagnostic tool
Tightening torquesm
airbag computer nuts8 Nm
120289
120290
120291
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-7
AIR BAG AND PRETENSIONERS
Driver's frontal airbag: Removal - Refitting
88C
aUnlock the driver's front airbag connector (3) at (4) .
aDisconnect the driver's front airbag connector.
aRemove the driver's front airbag.
REFITTING
I - REFITTING PREPARATIONS OPERATION
a
II - REFITTING OPERATION FOR PART
CONCERNED
aConnect the connector onto the driver's front airbag.
aClip the safety cover onto the driver's front airbag
connector.
aRefit the driver’s front airbag
aClip the driver's front airbag onto the steering wheel.
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 MR 413 Fault finding, 88C, Airbags and
seat belt pretensioners, Fault finding - Replace-
ment of components).
(see 88C, Air bag and Pretensioners, Airbags
and pretensioners: Recycling - Destruction,
page 88C-2) .
119482
101920
IMPORTANT
To prevent the any component from being thrown
upwards, store the airbag with the inflatable
cushion facing upwards.
IMPORTANT
After a seat belt pyrotechnic component is trigge-
red, it is essential to replace certain par ts.
(see 88C, Air bag and Pretensioners, Airbag
and pretensioner s: Precautions for the repair,
page 88C-1) .
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 a par t only.
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
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