Cert III Automotive Mechanic study materials
Cert III Automotive Mechanic study resources

Cert III Automotive Mechanic case studies

Cert III Automotive Mechanic · Put your knowledge to work in context.

The Certificate III in Automotive Mechanical Technology is a trade-level vocational qualification for people who service, diagnose and repair light vehicles or related machinery. It suits apprentices building their first trade skills, experienced technicians who want their competence formally recognised, and career changers entering the industry. Assessment is competency based: you must demonstrate skills in a real or simulated workshop as well as answer knowledge questions, and many candidates also submit workplace evidence and a portfolio gathered on the job. The written and oral components test your understanding of safety and environmental practice, hand and power tool use, engine mechanical systems, electrical and electronic systems, brakes, steering and suspension, drivelines and transmissions, cooling, lubrication and fuel systems, emission control and inspection procedures, and the documentation and customer communication expected of a tradesperson. The Cert III Automotive Mechanic case studies are 5 cases and about 1,737 words.

1

Brake Fluid Contamination and ABS Warning

A 2015 Toyota Corolla (120,000 km) arrives with the ABS warning light on and a spongy brake pedal. The owner reports that a mobile mechanic replaced the front pads and bled the brakes two weeks ago.

347 words, about 2 min
2

Engine Misfire and Fuel Trim Diagnosis

A 2012 Holden Commodore (3.0L V6, 180,000 km) has a rough idle, decreased power, and the check engine light on. The owner says the misfire started after refueling at a remote station.

343 words, about 2 min
3

Steering Pull and Tyre Wear

A 2018 Ford Ranger (60,000 km) pulls to the right and the front tyres show uneven wear: the outer edge of the left front tyre is worn significantly more than the inner edge. The owner recently had new tyres fitted and a wheel alignment at a chain store.

398 words, about 2 min
4

Cooling System Overheating and Coolant Loss

A 2016 Mazda 3 (2.0L, 90,000 km) overheats intermittently. The owner notices coolant loss but no visible leaks.

333 words, about 2 min
5

Electrical Parasitic Drain and Battery Failure

A 2019 Hyundai i30 (40,000 km) has a battery that goes flat overnight. The battery is 6 months old and tests good.

316 words, about 2 min