Audi A4: Tools and Equipment
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Tools and Equipment
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Testing Equipment, Tools and Materials
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
Commercially Available Tools and Materials
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
SEE MORE:
Window Guide, Removing and Installing
Removing
- Remove the door window. Refer to
→ Chapter "Front Door Window, Removing and Installing".
- Remove the B-pillar trim. Refer to
→ Chapter "B-Pillar Door Trim, Removing and Installing, Front".
- Remove the A-pillar trim. Refer to
→ Chapter "A-Pillar Tri
Expansion Valve
The expansion valve atomizes the streaming refrigerant and
controls the flow quantity so that the vapor is gaseous only at
the evaporator outlet, depending on the heat transmission.
Note
Be sure to use the correct part number when replacing the
expansion valve. Refer to the Parts Catalo
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