The wheel cylinder is used with drum-type brakes. When the brake pedal is pushed, the wheel cylinder pushes the brake shoes against the drum brake, slowing or stopping the car.

Wheel nuts are used to attach a wheel to a hub.

These are the parts of your wipers that go between the wiper pivots at the base of the windshield and wiper blades.

These are the actual rubber parts of the windshield wiper that clear your windshield.

This is a warning light only found on diesel-engined cars. Since diesel fuel collects water, a sensor in the fuel tank will go off when the ratio of diesel fuel to water reaches a certain level.

Part of the cooling system. The water pump circulates coolant through the cooling system, helping the engine stay in the desired temperature range.

Wax is a product used to protect paint finishes and create extra shine.

The wheel bearing is contained within the hub. It allows the wheel to travel around the axle with minimal wear and friction.

Vapor lock occurs when an engine gets so hot, it boils the fuel travelling through the fuel lines. This creates vapor, which then prevents the engine from running.

Variable-assist power steering is desgined to vary the level of power assist according to vehicle speed or angle of the steering wheel.

An acronym for Vehicle Control Module, the on-board computer that controls the engine management, transmission, and other systems such as antilock brakes.

The voltage regulator regulates the power output of the alternator to prevent overcharging the battery and electrical system.

The PCM uses warm-up cycles instead of key cycles to clear DTCs. A Warm-Up Cycle is achieved when the engine coolant temperature rises at least 22

This is special fluid designed to clear the windshield quickly and with little residue.

The container where washer fluid is kept in a car.

These are the jets on the hood or in the wipers that spray washer fluid onto the windshield.

This is an electric motor that delivers washer fluid to the washer nozzles.

Overboost occurs when a turbo’s wastegate does not release excess intake pressure. This pressure instead enters the engine, causing potentially significant damage to the engine.

A turbo’s wastegate allows excess intake boost pressure to be released before it enters the engine, which may cause potentially significant engine damage.

Universal joints are part of a car’s driveline. They allow the driveshaft to continue to rotate at all angles.