Vehicle air conditioning is often thought of as a comfort feature rather than a safety-critical system — but a properly functioning air conditioning system contributes to driver alertness, windscreen demisting, and occupant comfort in both hot and cold weather. At Brookes Auto Repair, we service and recharge air conditioning systems on all makes and models.
How Air Conditioning Systems Work
Your vehicle’s air conditioning system circulates a refrigerant gas that absorbs heat from the cabin air and expels it outside the vehicle. The system comprises a compressor, condenser, expansion valve, and evaporator, connected by pipes and hoses. A cabin air filter removes particulates and allergens from the incoming air before it reaches the occupants.
Why Refrigerant Levels Drop
Air conditioning systems are not completely sealed — they lose a small amount of refrigerant through natural permeation of hoses and seals, typically around 10 to 15 percent per year. Over two or three years, this loss can become sufficient to reduce cooling performance noticeably or cause the compressor to cycle on and off erratically.
The Importance of Cabin Filter Replacement
The cabin air filter traps dust, pollen, and other airborne particles before they enter the interior. A blocked cabin filter reduces air flow, makes the air conditioning work harder, and can result in unpleasant odours circulating through the cabin. Most manufacturers recommend replacement every 15,000 to 20,000 miles or annually.
Antibacterial Treatment
Over time, bacteria and mould can develop on the evaporator surface, producing the musty smell that many drivers notice when first switching on the air conditioning in summer. A professional antibacterial treatment eliminates these organisms and restores fresh, clean air to the cabin.
Book an air conditioning service at Brookes Auto Repair via brookesautorepair.com. We recommend servicing every two years.
