Leak Test

WARNING: This page is about a different car, the 2002 Jaguar XKR and 2002 Jaguar XK8. However, it is still accessible from the selected car via links, so may be relevant.

Faults associated with low refrigerant charge weight and low pressure may be caused by leakage. Leaks traced to mechanical connections may be caused by torque relaxation or joint face contamination. Evidence of oil around such areas is an indicator of leakage.

Models that have fluorescent tracer dye incorporated into the refrigeration system can be checked for non-apparent leaks by scanning with a high intensity ultraviolet lamp. The location of leaks can be pinpointed by the bright yellow glow of the tracer dye.

CAUTION: Observe ALL safety precautions associated with ultraviolet equipment.

Should a leak be traced to a joint, check that the fixing is secured to the correct tightening torque before taking any other action.

When examining the system for leaks, check the compressor shaft seal and evaporator.

Charge Recovery (system depressurization)

The process of charge recovery will depend on the basic characteristics of your chosen recovery / recycle / recharge equipment, therefore, follow the manufacturer's instructions carefully.

Remember that compressor oil may be drawn out during this process, take note of the quantity recovered so that it may be replaced.