Workshop Manuals Factory service & repair Aston Martin
Aston Martin DB9 Factory Workshop Manual (Issue 2, 2005)13 · 12 Climate control
13 · Heating & A/C

Removal

Make
Aston Martin
Model
DB9 Factory Workshop Manual
Year
Issue 2, 2005
Section
Air Conditioning (A/C) System › Removal
12 Climate controlRemoval · page 1 of 5
Repair Operation Time (ROT)
ItemCode
A/C Trinary Switch RenewTBA

Removal

  1. Disconnect the vehicle battery.
  2. Recover the refrigerant from the A/C system.
  3. Remove the foam surround.
Diagram showing the trinary switch location with wiring harness and pipes
  1. Disconnect the wiring harness plug.
  2. Hold the piping block with pliers or a similar tool and loosen the trinary switch using a wrench. Withdraw the trinary switch.
Diagram showing the trinary switch being withdrawn from the piping block

Installation

  1. Install the trinary switch. Torque to TBA Nm.

Apply compressor oil to the O-ring joint.

  1. Connect the wiring harness plug.
  2. Install the foam surround.
  3. Charge the A/C system (Refer to ‘Charging’, page 12-3-8).
  4. Connect the vehicle battery. Start the engine. Allow the engine cooling system to rise to normal running temperature.
  5. Carry out A/C system actuator check and functional check to ensure correct operation (Refer to ‘A/C System Testing’, page 12-3-9).

Expansion Valve

Repair Operation Time (ROT)
ItemCode
A/C Expansion Valve RenewTBA

Removal

  1. Disconnect the vehicle battery.
  2. Recover the refrigerant from the A/C system.
  3. Remove protective material from around the expansion valve.
  4. Remove screws (x2). Remove the A/C pipes clamp.
Photo of hands removing screws from the A/C pipes clamp on the expansion valve
  1. Withdraw the A/C pipes. Discard ‘O’ rings.
Photo of the expansion valve with A/C pipes removed, held by a gloved hand
  1. Withdraw the expansion valve. Discard ‘O’ rings.
Photo of the expansion valve being withdrawn from its mounting point

Parts & tools for this job For 2005 Aston Martin DB9

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