Workshop Manuals Factory service & repair Aston Martin
Aston Martin DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning (1994-1998)04 · Air conditioning
04 · Heating & A/C

Data (page 2 of 2)

Make
Aston Martin
Model
DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning
Year
1994–1998
Section
Repair procedures
Air conditioningData · page 2 of 2
  1. Depressurise the air conditioning system.
  2. Undo the pipe to expansion valve clamp bolt and retaining plate and disconnect the pipes (Fig. 1)
Diagram showing pipes connected to an expansion valve with a bolt and retaining plate, labeled F3 and F4.
Figure 1.
  1. Fit blanking plugs to the expansion valve and to the pipes.
  2. Reposition the pipes to one side.
  3. Unscrew the two torx head retaining screws and remove the expansion valve from the air conditioning unit (Fig. 1-1).
  4. Remove and discard the 'O' rings.
  5. Fitting a new valve is the reversal of the removal procedure.
  6. Ensure new 'O' rings to all union connections are fitted.
  7. Evacuate the system.
  8. Recharge the system.
Diagram showing a circular plate with six bolt holes, numbered 1 through 6, and a central rectangular section.
Figure 3.
  1. Fit new 'O' rings to the outlet port blanking plate, position the plate on the compressor and fit and tighten the securing bolt.
  2. Check compressor oil and top up in necessary.
  3. Refit the compressor.
  4. Remove the wing mat and close the bonnet.
Diagram showing a hand holding a valve plate with gaskets, labeled 1, 2, and 3.
Figure 2.
  1. Position valve plate and gaskets (Fig. 2-1 and 2) on the compressor and fit the cylinder head.
  2. Tighten the cylinder head securing bolts in the order shown in Fig. 3.

Parts & tools for this job For 1994 Aston Martin DB7

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