Volkswagen Golf Service & Repair Manual: Renewing pyrotechnic, electrical and mechanical components of the restraint
system after an accident
| Special tools and workshop equipment
required |
| |
Vehicle diagnostic tester |
 Note
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| |
The airbag control unit can be used for up to 2 side
airbag and/or belt tensioner deployments with the airbag
generation 8.* »not 8.R«. |
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The airbag control unit can
be used for up to 2 deployments of side airbag/driver
airbag/front passenger airbag and/or belt tensioner with the
airbag generation 9.*, 10.* and 8.R. |
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After the third deployment, the error message
“Control unit faulty” is displayed. |
| The airbag control unit must be renewed: |
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In the event of a driver/front passenger airbag
deployment “though not for airbag generation 9.*, 10.* and
8.R ”
→ Anchor |
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After 3 deployments of side airbag/driver airbag/front
passenger airbag and/or belt tensioner |
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In the event of damage to the housing |
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In the event of a deformation to the tunnel within a 200
mm radius of the control unit |
| Always renew the following: |
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All triggered airbag units. |
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Battery isolation igniter -N253- |
| Additionally, in the event of the front passenger airbag
being triggered: |
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Supports of front passenger airbag unit which have been
bent out of shape (must not be bent back into shape) |
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All sensors for front airbag at front end |
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Remaining sensors for lateral acceleration in event of
deformation of attachment points in vicinity of sensors |
| Additionally, in the event of the driver airbag being
triggered: |
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Return spring with slip ring |
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All sensors for front airbag at front end |
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Remaining sensors for lateral acceleration in event of
deformation of attachment points in vicinity of sensors |
| Additionally, in the event of the side airbag being
triggered: |
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Pressure sensors on the triggered side |
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Lateral acceleration sensors on the side affected |
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In case of foldable backrest: side padding (if fitted) |
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Remaining sensors for lateral acceleration in event of
deformation of attachment points in vicinity of sensors |
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All belt inertia reels with triggered belt tensioners |
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All belt inertia reels with triggered belt tensioners |
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Belt buckles for all belt inertia reels with triggered
belt tensioners and seat belt engaged |
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Belt height adjuster (mechanical and electrical) for all
belt inertia reels with triggered belt tensioners and seat
belt engaged |
| – |
If you suspect that belt tensioners or belt force limiters
have been triggered, connect a vehicle diagnostic tester. |
| – |
Under “15 - Airbag” in »Guided Fault
Finding« check whether there is a crash entry logged for
the airbag control unit. |
| – |
At the same time check whether the “Resistance too high”
fault is also logged for belt tensioners and/or belt force
limiters. Triggered belt tensioners and/or belt force limiters
have to meet both conditions. “Prerequisite: The airbag control
unit has not yet been renewed”. |
Note
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The “Resistance too high” fault can also be logged in
the event of a cable break. Under normal circumstances, no
crash entry is then logged. |
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Depending on the crash intensity, it is possible that
the belt tensioner was triggered but
»NOT« the belt force limiter. Observe notes on
disposal of pyrotechnic components
→ Chapter. |
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In addition, note the section: Checking seat belts
→ Chapter. |
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Deployed belt force limiters can be identified by the
following features: |
| |
The pin -1- and lug
-3- have popped out of the belt
force limiter housing on the belt inertia reel. |
| |
The strap -2- is no longer
vertical but is pointing diagonally outwards. |
| – |
If parts of the belt system are removed because of an
accident, the belt system bolts must be renewed. |
| – |
In addition, the following must also be replaced if
necessary (visual check): all damaged components. |
| – |
After renewing the airbag units or the control unit, affix
stickers (only tear-off strips) to the registration card and
return the registration card to the responsible Sales Centre or
to the Importer for registration. |
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The side airbag crash sensors respond to changes in pressure
and must therefore be treated with particular caution. Observe
the following:
&nbs ...
All damaged securing parts must always be renewed. It is not
permissible to bend the components back into shape or
»make them fit«
The followi ...
Other materials:
Removing and installing front entry light -W31-/-W32-
Caution
Danger of damage to component surfaces.
When using leverage tools, mask visible areas of the
component with commercially available adhesive tape.
...
General information
Fig. 155 In the tailgate: location of the
camera for the reverse assist system (Rear Assist)
Fig. 156 Reverse assist system display
First read and observe the introductory information
and safety warnings
Function
Action in vehicles without the ParkPilot o ...
Possible complaints about refrigerant circuit
Note
The air conditioning system is operating correctly if the
air emerging from the vent on the dashboard is at a temperature
of 7oC or less.
Set the Climatronic to: “LO”.
Set the ai ...
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Safety regulations for crash sensors (pressure sensors) for front side
airbags
Checking airbag securing parts after an accident