vehicle air condition

How To Maintain Your Vehicle Air Condition System

Having your vehicle Air Condition system checked is important so as to enable it to work effectively during hot months and beyond. The main function of the Air Conditioning unit is to provide variable air temperature in the cabin plus to defog the windscreen during cold weather, brought by the imbalance of cabin temperature and outside temperature.

Majority of drivers hardly maintain the Air Conditioning (A/C) units and only notice activity when it fails to operate optimally. Manufacturers insist that this system must be checked annually, to make sure it is functioning at its peak performance level when the temperatures are soaring.

When you ensure that your vehicle Air Condition system is working properly will guarantee a cool and safe vehicle at all times. Not only are high temperatures harmful to the body with prolonged exposure, but they can provide unnecessary wear and tear on a vehicle.

An improperly functioning A/C system also affects fuel economy as the refrigerant compressor is a part of the 5 bearings attached to the crankshaft. Poorly greased A/C pulley or worn out belt puts a lot of strain on the crankshaft, as it has to work harder to pump the refrigerant around the system. The result is the loss of power to the vehicle and subsequently poor fuel economy

Vehicle Air Condition Servicing

A vehicle’s heating, ventilating and air conditioning system (HVAC) keeps the interior cabin comfortable in any season by providing the right temperature and humidity level. This system consists of the A/C control unit which has ambient sensors that monitor and regulate the control unit when in AUTO mode. The blower unit and rheostatic heating element provide circulation and temperature control, not forgetting the dust and pollen filter which ensure air drawn from outside is clean and is pollen free (important to protect passengers with allergies). In some modern vehicles like the Mercedes Benz S Class, they have taken air conditioning to the next level by ionizing the air entering the cabin plus have scent dispensers to ‘flavour’ the air on desired taste and preferences of the passengers.

Typical A/C Service Consists of The Following Steps:

  • Service technician visually inspects hoses, lines, seals and other components for leaks as well as inspect the drive belt for cracks or damage.
  • Technician performs a pressure test on the A/C system, refrigerant charge and outlet temperatures.
  • If the system is found to be low on refrigerant, a leak test is performed to find the source of the leak. Keep in mind that if your vehicle is leaking refrigerant, it is damaging the ozone layer.
  • The refrigerant may be added if necessary to “top off” the system.
  • A technician may also check for evidence of refrigerant cross-contamination, which is the mixing of refrigerants.
  • A/C service should also include a check of the compressor’s drive belt and tension.

Ensure that you do this check during the yearly major service check on your vehicle. Vehicle Air Condition System remains a vital part of your vehicle’s numerous system designed to keep you comfortable and safe at all times.




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