Volkswagen Golf Service & Repair Manual: Water content
Only very small amounts of water are soluble in liquid
refrigerant. On the other hand, refrigerant vapour and water
vapour mix in any proportion. |
Any water present in the refrigerant circuit will be carried
along as droplets. The dessicant, dessicant bag or dessicant
cartridge in the receiver or reservoir are capable of holding
approx. 7 grams of water before they are full and cannot absorb
any more water. If there is further water in the circuit, it
will flow to the expansion valve jet or to the restrictor and
becomes ice. |
The air conditioning system will stop cooling. |
Water destroys the air conditioner because at high pressures
and temperatures it combines with other impurities to form
acids. |
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Refrigerant is non-flammable. On the contrary, it has a
fire-inhibiting or fire-extinguishing effect. Refrigerant
decomposes when exposed to flames or incandescent surfaces. UV
light can also decompose refrigerants (UV is emitted by electric
arc welding). Products of this decomposition are poisonous and
must not be inhaled. However, these chemicals irritate the
mucous membranes, giving adequate warning of their presence. |
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In its pure state, refrigerant R134a is chemically stable
and does not attack iron or aluminium.
However, impurities such as chlorine compounds in th ...
There must be space both for liquid and vapour in a
container. As the temperature rises, the liquid expands. The
space occupied by the vapour becomes smaller. Eventua ...
Other materials:
Wheel change, installation requirements
Warming cold tyres to minimum installation temperature
Note
This instruction also applies to ultra-high performance
tyres (height/width ratio smaller than/same as 45 % and speed
symbol greater than/same as V).
...
Changing headlights over from driving on right to driving on left, LED
headlights
If a right-hand drive vehicle is driven in a left-hand drive
country, or vice versa, the headlights must be converted. This
is necessary in order to avoid dazzling oncoming traffic with
the asymmetric low beam headlights.
Note
...
Checklist
The following actions must always be carried out in the given order
in preparation for changing the wheel :
In the event of a flat tyre, park your
vehicle on a firm and level surface at a safe distance from the flow of traffic.
Switch on the electronic parking brake
Braking, st ...
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