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What do wheel bearings do? The contact surface between the wheel’s center (hub) and the axle is subject to large amounts of friction as the two parts rub against each other. The purpose of a wheel bearing is to help the wheel spin with as little friction as...
About your car’s steering system: The car steering system consists of several components which help your car to turn and corner properly. Its purpose is to form a connection between the steering wheel and the tyres, allowing the car wheels to respond correctly...
About the suspension system: Your car’s suspension system maximises the friction between your tyres and the road. This allows the car to maintain contact with the road at all times. This increases the control you have over your car, improving its safety and...
What does the clutch do? In manual vehicles, the clutch assembly consists of several different components. The role of your car’s clutch assembly is to engage and disengage the transmission. This lets you change gears when the clutch pedal is down. Inside your...
About the coolant/radiator temperature sensor: The coolant temperature sensor (or temperature switch) is a small sensor that measures the temperature of engine coolant. It then sends the information to your car’s onboard computer where changes are made to the...
What do the front/rear demisters do? It is important that you are able to see through the fog on your windscreen on a cold day. Demisters (also referred to as defoggers or defrosters) are used to clear the front windscreen and rear window of frost and fog. This allows...
