Volkswagen Golf Service & Repair Manual: Safety regulations for crash sensors (pressure sensors) for front side
airbags
| The side airbag crash sensors respond to changes in pressure
and must therefore be treated with particular caution. Observe
the following: |
| |
The correct installation position is vitally important: only
install in the specified location in the door. |
| |
Protect the crash sensor against mechanical shocks and
impacts: any crash sensors which have been dropped must no
longer be used. Remove the crash sensor when carrying out body
repairs on the door. |
| |
The crash sensor is matched to the volume of air inside the
door: deformation of the door, resulting in a reduction in the
air space in the door, impairs the function of the crash sensor. |
| |
Avoid any major soiling of the crash sensor: do not use
compressed air in the vicinity of the crash sensor. Protect the
crash sensor against filings or bore chips (example, during
retrofitting of door speakers). Do not use cavity sealants or
spray oil in the vicinity of the crash sensor. |
| |
Protect against heat/cold: avoid heat effects, for example
during spray painting or other bodyshop operations. The crash
sensors must not be exposed to temperatures below -40°C (for
example in non-air-conditioned aircraft holds). |
| |
The crash sensor must be protected against humidity during
storage and installation. |
| For the crash sensor to function properly, it is vital to
ensure that the door forms an effective seal after being fitted.
Observe the following: |
| |
All components (e.g. cover, speakers, door trim) must be
correctly fitted. |
| |
The door trim retaining clips seal the system. If necessary,
renew the retaining clips. |
|
Inspect trims for damage prior to installing them.
Always renew damaged pillar trims; never repair.
Ensure ...
Special tools and workshop equipment
required
Vehicle diagnostic tester
Note
...
Other materials:
Vapour pressure
In an enclosed container that is not completely full,
refrigerant evaporates as vapour at the surface in a quantity
sufficient to form an equilibrium between vapour and liquid.
This equilibrium develops under pressure and is often called
vapour pressure. ...
Repairs to CAN bus wiring
An unshielded two-wire line -1-
and -2- with a cross section of
0.35 mm2 or 0.5 mm2
is used for CAN bus wiring.
The colour codes of the CAN bus wiring can be gleaned from
the following table:
...
Preparing old undamaged windows for fitting
Cutting back adhesive bead
WARNING
Keep bonding surface free of dirt and grease.
Do not treat bonding surface with activator
immediately after cutting back. Do not pr ...
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Additional safety instructions for curtain airbag
Renewing pyrotechnic, electrical and mechanical components of the restraint
system after an accident