Volkswagen Golf Service & Repair Manual: Notes on repairs to airbag and belt tensioner wiring
| In addition to the general notes on repairs to wiring
harnesses, the following instructions must be observed on how to
repair wiring in airbag and belt tensioner systems: |
WARNING
| Airbag and seat belt tensioner can fail. |
| Faulty repairs to the airbag and seat belt
tensioning system can cause malfunctions in the
passenger protection system. |
| For repairs to airbag and belt tensioner wiring
harnesses, only contacts, connectors and wiring designed
specifically for this purpose may be used
→ Electronic parts catalogue (ETKA). |
|
 Note
| Wires from airbag and belt tensioner wiring harness may only
be repaired using wiring harness repair set -VAS 1978 B- and
previous versions. |
| Observe the general notes on repairs to the vehicle
electrical system
→ Chapter. |
| Observe vehicle stickers indicating high voltage components.
Before carrying out repairs, discharge residual voltage
→ General body repairs, interior; Rep. gr.69. |
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| For repairs to wiring in the airbag and belt tensioner
system, a maximum of two positions may be repaired. The more the
repairs there are in the wiring, the greater the resistance and
this can trigger faults in the self-diagnosis of the system. |
| To avoid corrosion, the crimp connectors are always to be
shrink-fitted when performing airbag or belt tensioner wiring
harness repairs. |
| Do not incorporate the repaired wiring back in the vehicle's
own wiring harness and mark the area of repair clearly with
yellow insulating tape. |
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| Repairs in the area of the airbag or belt tensioner should
not be more than 30 cm from the next contact housing. Together
with the yellow insulating tape, this gives a clear indication
of repairs that have already been carried out. |
| The wires to the triggering units (airbags) are entwined as
standard with a twine spacing of 20 mm ± 5. This spacing is
assured for series production via industrial standard numbers
for wiring pairs and it is essential that it is adhered to on
the repair lengths of entwined wiring. |
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| During repairs, the wiring to the triggering units (airbags)
must have the same length. When wires -1-
and -2- are entwined, the twine
spacing of A = 20 mm ± 5 must be adhered to without fail. |
| There may not be any section of wiring, for example in the
vicinity of crimp connectors -arrow-,
longer than B = 100 mm with the wires not twisted. |
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Crimping pliers -VAS 1978/1A- or crimping pliers (base tool)
-VAS 1978/1-2- together with head adapter 0.35 - 2.5 mmІ -VAS
1978/1-1- or head adapter 4 ...
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 col ...
Other materials:
Assembly overview - flanging tool
The flanging tool for brake lines -VAS 6056- can be used to
flange brake lines with an outer pipe diameter of 5 mm without
damaging the coating. In certain cases, this allows sections of
brake lines to be renewed at less expense.
N ...
Driving notes on towing
First read and observe the introductory information
and safety warningsTowing requires some experience, especially when using
a tow rope. Both drivers should be familiar with the technique required for towing.
Inexperienced drivers should not attempt to tow.
When driving, ensure that you do ...
Removing and installing trim for operating and display unit
Removing
–
Starting at bottom, unclip trim for operating and display
unit -1- from operating and display
unit -2- and remove it.
Installing
Note
Before installing, chec ...
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Crimping pliers -VAS 1978/1A
Repairs to CAN bus wiring