Audi A4: Refrigerant R134a Capacities, Refrigerant Oil and Approved Refrigerant Oils
Approved Refrigerant Oils and Capacities
Note
- As PAG (polyalkylene glycol) oil is highly hygroscopic
(attracts water), opened containers are to be immediately
resealed so as to be air-tight.
- PAG oil from containers which have been open for a lengthy
period is no longer usable.
Refrigerant oil capacities. Refer to
→ Chapter "Refrigerant Oil Capacities".
Refrigerant R134a Capacities
Note
- When charging the high-pressure side of refrigerant
circuits, always use maximum amount of refrigerant (some of the
refrigerant remains in the charging hoses).
- The specified capacities for refrigerant R134a apply if no
other different specifications given for the "S" and "RS".
- Make sure the A/C Service Station is standing at the same
level as the vehicle (maximum difference: 50 cm) when charging
the refrigerant circuit. If a difference in height is large
enough, a difference between the amount of refrigerant displayed
on the service station and amount actually filled in the circuit
will result (depending on the version of the A/C Service
Station). The ability of the A/C Service Station to perform an
exact filling can change.
- For compressor allocation ("Zexel/Valeo", "Sanden" or
"Denso/Nippondenso"). Refer to the Parts Catalog and to
→ Heating, Ventilation and Air Conditioning; Rep. Gr.87; System
Overview - Refrigerant Circuit (vehicle-specific
repair manual).
- Refrigerant circuits converted from R12 to R134a are to be
filled with the quantity indicated in the repair manual "Air
conditioner with refrigerant R12". (This repair manual is only
available in hard copy).
- Beginning from production year 2006, the name of the "Zexel"
A/C compressor was changed from "Zexel" to "Valeo".
Approved Refrigerant Oils. Refer to
→ Chapter "Approved Refrigerant Oils".
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General Information
Note
This list outlines the testers, tools and materials required
for expert refrigerant circuit repair work.
For tools and materials available from the distribution
ce
Fin comb
Fill hoses
5/8"-18 UNF thread
Note
Use differently colored charging hoses (1800 mm long).
Have valve opener and spare seals to hand.
A charging hose in short version is also incl
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Description
Applies to: vehicles with Start/Stop system
The Start/Stop system can help increase fuel
economy and reduce CO2 emissions.
In Start/Stop mode, the engine shuts off automatically
when stopped, for example at a traffic
light. If certain conditions are met, the engine
may stop before the
Note
The Passenger Side Front Airbag Crash Sensor -G284- is removed
and installed the same way.
Removing
WARNING
Risk of injury due to involuntary deployment.
Pay attention to the safety precautions when working
with pyrotechnic components. Refer to
→ Chapter "Safety Precau