Volkswagen Golf Service & Repair Manual: Lights, lamps, switches outside
| Operation and safety notes for gas
discharge bulbs |
| – |
If repairs are to be made to the headlight with gas
discharge bulbs, observe the following: |
| Notes on dangerous high voltage/currents
→ Anchor |
| Notes on pressure, temperature, radiation/arcs
→ Anchor |
| Assembly notes for gas discharge bulbs
→ Anchor |
| Disposal regulations for gas discharge bulbs
→ Anchor |
| Special tools and workshop equipment
required |
WARNING
| It is absolutely necessary to disconnect the battery
earth strap before working on parts of the gas discharge
headlights marked with yellow high voltage symbols. |
| Then switch dipped beam on and off again. This will
eliminate any possible residual voltage. |
| The gas discharge lamp control unit must never be
operated without a gas discharge lamp. |
| Due to the high voltage (above 28000 V when igniting
the gas discharge bulb) and temperatures, the gas
discharge bulb must only be operated in the headlight
housing. |
|
WARNING
| Never change bulbs if you are not familiar with the
appropriate procedures, safety precautions and tools. |
|
| Notes on dangerous high voltage and
current |
WARNING
| Control units for light systems, connectors and
components pertaining to bulb holders conduct lethally
high voltage. |
| Operating the control unit and the starter unit is
permitted only with the bulb fitted. |
|
WARNING
| Switch off ignition and all electrical consumers and
remove ignition key. |
| When working on the headlight system, ensure that
there is no voltage in any component, including
dissipation of residual voltage after the headlights are
switched off. |
| Residual voltage can be dissipated by turning the
dipped beams on and then off again after withdrawing the
ignition key. |
| When working on the headlight system, ensure that
the lights cannot be switched on. |
|
| Notes on pressure, temperature,
radiation/arcs |
WARNING
| The bulbs may be operated in the headlight housing
only (protection against contact due to very hot bulbs,
absorption of UV radiation, avoidance of dazzling light,
protection against explosion). |
| The glass of the bulbs can be very hot – danger of
burns. |
| Avoid looking directly into the beam, as the UV rays
from the gas discharge bulb are about 2.5 times greater
than normal halogen bulbs. |
| Avoid looking into the light beam (danger of glare);
vision may be impaired for a substantial time. |
|
WARNING
| Avoid contact with burst bulbs. |
| H7 bulbs and gas discharge bulbs (xenon and
bi-xenon) are under pressure and can explode while being
changed – danger of injury. |
| Always wear eye protection and gloves when removing
and installing gas discharge bulbs! |
|
| Repair notes for gas discharge bulbs |
Caution
| Always switch off the affected consumers before
exchanging a bulb. |
| Switch off ignition and all electrical consumers and
remove ignition key. |
| Do not touch the bulb glass with bare fingers; use
clean cloth gloves. When the light bulb is switched on,
the heat would vaporise the oil of the finger prints
which would then settle on the reflector, impairing the
brightness of the headlight. |
| A light bulb must always be renewed with a bulb of
the same sort. The designation appears on the base of
the bulb or on the bulb glass. |
| Properly engage connectors during installation and
the connection is seated tightly. |
|
| Disposal regulations for gas
discharge bulbs |
WARNING
| Gas discharge bulbs must be disposed of as hazardous
waste; never dispose of gas discharge bulbs as consumer
waste. |
| Gas discharge bulbs contain metallic mercury (Hg)
and traces of thallium; never destroy these bulbs. |
| These components must be recycled in the correct
manner according to national law. |
| Only dispose of in containers intended for this
purpose at an authorised collection point. |
|
|
|
|
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