Which tests do I need for ASE Master Automobile Technician?

All eight Automobile tests A1 through A8. A9 (Light Vehicle Diesel Engines) is not required for the Automobile master title.

Do I have to keep all eight current?

Yes. Each certification expires every 5 years. If any required test lapses, you lose Master status until you recertify it.

Are there other Master titles?

Yes — ASE also offers Master status for Collision Repair, Medium/Heavy Truck, Transit Bus, and School Bus series. Each requires its own set of tests.

ASE Master Automobile Technician

The Master Automobile Technician title means you've passed and kept current all eight Automobile tests — A1 through A8. Here's the full ladder.

The eight required tests (A1–A8)

A1 — Engine Repair
A2 — Automatic Transmission/Transaxle
A3 — Manual Drive Train & Axles
A4 — Suspension & Steering
A5 — Brakes
A6 — Electrical/Electronic Systems
A7 — Heating & Air Conditioning
A8 — Engine Performance

A9 is not required

A9 (Light Vehicle Diesel Engines) is part of the Automobile series but is not required for the Master Automobile Technician title. It's optional recognition on top.

Keeping Master status

Every certification expires every 5 years. Let one required test lapse and you lose Master status until you recertify it — so plan your recerts. For A-series renewal, the $52/year ASE Renewal App can keep them current without a full exam.

Start the ladder

Most technicians start with the highest-demand tests — A5 Brakes and A6 Electrical. New to certification? G1 (Maintenance & Light Repair) is a great first step. Build your Master Tech plan.

FAQ

Which tests do I need for ASE Master Automobile Technician?: All eight Automobile tests A1 through A8. A9 (Light Vehicle Diesel Engines) is not required for the Automobile master title.
Do I have to keep all eight current?: Yes. Each certification expires every 5 years. If any required test lapses, you lose Master status until you recertify it.
Are there other Master titles?: Yes — ASE also offers Master status for Collision Repair, Medium/Heavy Truck, Transit Bus, and School Bus series. Each requires its own set of tests.