Procedure
- Make
- Aston Martin
- Model
- DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning
- Year
- 1994–1998
- Section
- Functional check › Procedure
Procedure
- Select ECO
- Select AC
- Select fan speed 3
- Select fan speed 2
- Select MAX temperature
allow in-car temperature to stabilise
(Passenger side underscuttle panel must be in place) - Select MIN temperature and mid face level
- Select DEMIST and full heat
- System check now complete
Normal System Reaction
Blower flaps revert to fresh air position
Engine revs change then stabilise
Small increase in fan speed
Fan speed lower
Centre vent and dash end cold
footwell cool
Hot air from footwell,
warm from dash end
System goes to full cooling automatically
Cold air from all vent except from screen vent
Centre vent open
Blower at re-circulation
Demist vents open, centre vent closes and
blower flaps revert to fresh air position
System good.
Note: A small amount of air will bleed from the ends of the demist-defrost vents in all cases, but there should be no leak along the length of the vents.
Parts & tools for this job For 1994 Aston Martin DB7
- TOOLA/C manifold gauge setSearch: AC manifold gauge set
- TOOLUV leak detection kitSearch: AC UV leak detection kit
- PARTCabin filterSearch: Aston Martin DB7 1994 cabin filter
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