PRESTIGE DECODES
Number 1 For Car Electronics & Air Conditioning Repairs
Car Air Conditioning Regasing / Repairs
Not only does it keep You cool in the
summer months, it also
dehumidifies the interior air throughout the year, and so removes
moisture, whilst filtering airborne pollutants such as dust, pollen
and diesel particles.
In all Your Air Conditioning
System is the biggest contributor in maintaining a pleasant and
comfortable interior climate whenever Your car is in
use.
Air Conditioning Systems need to be operated for
Ten to Fifteen minutes per week to prevent the flexible
pipework
and '0' ring seals from drying out and
allowing the refrigerant to escape.
Low refrigeration content
will create poor system efficiency. Moisture build-up due to
refrigerant permeation and leaks will occur. This will create Acids
and corrosion will affect the Air Conditioning System's operation,
and the longevity of all components the refrigerant comes into
contact with.
Services
We will
test/diagnose your system,
and quote to repair or
recharge your system.
Diagnosis
If the system is already empty, we
will carry out a leak test, usually with nitrogen, to locate the
leak, the cost of which is included in diagnosis
fee. once we have quoted for
a repair, if you go ahead with the work (even if it is just a
re-charge) the fee is deducted from the final invoice, i.e.
You only pay for diagnosis if it is the only work we
do.
Empty Systems
When
a system is empty, the natural conclusion is that somewhere in the
system there is a leak, natural loss generally results in a low gas
level.
When a system that is empty has been repaired, there is a
slight danger of a second leak after recharging, the reason for
this is that it is only possible to pressure test a system to
100psi, any higher would damage low-pressure components, (these
components are protected from high pressure only when the system is
running under it own steam) the high side of the system can run in
excess of 250psi, the next weak link in the chain may fail at this
pressure, although it is rare, sadly it does happen, and we will
inform you of this danger if we are concerned.
All repairs are carried out using the most up to date procedures;
we pride ourselves on our high standards of service and
repairs.
All parts fitted are guaranteed for 1 year
Re-charge
A standard recharge consists of draining
down the system and measuring by weight, the refrigerant
removed,
Any refrigerant removed is
then compared by the correct weight of gas for your vehicle,
typically a car needs re-charging after 3 years, and may have lost
up to 40% of its charge through natural loss. This comparison helps
us to differentiate between a potential leak and natural
loss.
Once empty, we then pull a
deep vacuum on the system for up to 30 minutes, this will reduce
the air pressure inside the system to lower the boiling point of
any moisture contamination, which is then boiled off, moisture
inside the a/c system is a common cause of poor system performance,
and can cause major damage to the compressor, pipes and filter, the
vacuum is also used as a further leak test.
Once the vacuum test has
completed, special refrigerant oil is added to compensate for any
lost during either the recovery process, or work carried out to the
system, this oil is the most important part of the process, if the
system oil is low, major damage can occur within the
compressor.
Finally, the system is
recharged with new, virgin refrigerant to the correct weight, it is
important to know that most Garages use automated machines to
recharge, these machine use the same refrigerant that has been
recovered to recharge the vehicle, as the gas quality is a very
important factor, we only recharge with pure new refrigerant, the
old refrigerant is collected in a separate cylinder and returned to
the processing plant for disposal.
Once the re-charge is
complete, the system is run and tested for vent temperate,
refrigerant pressure, cooling fan operation and lastly a final leak
check with a refrigerant detector.
Adding dye to your system
Air conditioning refrigerant is without smell or colour, if you
develop a small leak over time, it is very difficult and therefore
costly to find.
When you have your vehicle a/c system recharged, we will add an
ultraviolet dye, the dye is a yellow green colour, and although
visible to the naked eye, when an ultraviolet light is shone onto
the dye it glows brightly, showing up even the smallest of leaks,
this is of great benefit for two reasons, first it means that
misdiagnosis is reduced, and it is much easier to allow you to see
the problem.
Once the dye has been added, it is in the system for good, no
matter how many leaks you have, it will never need topping up, and
it is a once only application.
The cost of adding dye at the same time as a recharge is FREE
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211 CAMBUSLANG ROAD GLASGOW G72 7TS Tel 07727 149075