A pressure test is carried out to confirm the efficiency of the air conditioning system and whether any refrigerant is still present. No appointment is necessary for this test; it is a "drop-in", "while you wait" service and takes approximately 10 minutes. A lot of garages do not use a leak tracer dye, in this case if the gas deteriorates at a later date it is almost impossible to locate the leak. If you experience an odour when you switch on the interior fan, we can deodorise the air vents to eliminate the smell.