ASE A-Series Auto Technician Tests (A1-A8) Pass Rate, Format & Study Guide

The ASE A-Series tests (A1 to A8) are the Automobile & Light Truck certification tests from the National Institute for Automotive Service Excellence (ASE). Passing all eight earns Master Automobile Technician status. Each A-series test is taken separately: A1 Engine Repair 60 questions in 1.25 hours, A2 Automatic Transmission/Transaxle 60 in 1.25, A3 Manual Drive Train and Axles 50 in 1, A4 Suspension and Steering 50 in 1, A5 Brakes 55 in 1.25, A6 Electrical/Electronic Systems 60 in 1.5, A7 Heating and Air Conditioning 60 in 1.25 and A8 Engine Performance 60 in 1.25 hours, each followed by unscored research questions (ASE test pages, search extract). This portal's practice mock has 365 questions across A1-A8.

ASE certification is a widely used voluntary credential for automotive technicians, and employers often ask for it. Passing the tests is a required step toward the certification.

Automotive technicians and students preparing for ASE A1-A8 and candidates retaking a test. Experience requirements and fees are set by ASE; check them before you register.

The certifying body does not publicly publish an official pass rate for this exam. Be wary of third-party sites citing a specific number here — treat any pass-rate claim you see elsewhere for this exam as unverified.

If you receive a pass or fail result you must wait 30 full days before you can purchase and schedule the same test again (ASE FAQ, search extract); a purchased test must be taken within 90 days.

Passing standard: ASE sets the passing standard for each test and reports pass or fail; the standard was not confirmed in the sources we read, so none is quoted here. Each A-series test is taken separately: A1 Engine Repair 60 questions in 1.25 hours, A2 Automatic Transmission/Transaxle 60 in 1.25, A3 Manual Drive Train and Axles 50 in 1, A4 Suspension and Steering 50 in 1, A5 Brakes 55 in 1.25, A6 Electrical/Electronic Systems 60 in 1.5, A7 Heating and Air Conditioning 60 in 1.25 and A8 Engine Performance 60 in 1.25 hours, each followed by unscored research questions (ASE test pages, search extract). This portal's practice mock has 365 questions across A1-A8. No official pass rate for this exam was available in the sources we reviewed, so none is quoted here.

Each A-series test is taken separately: A1 Engine Repair 60 questions in 1.25 hours, A2 Automatic Transmission/Transaxle 60 in 1.25, A3 Manual Drive Train and Axles 50 in 1, A4 Suspension and Steering 50 in 1, A5 Brakes 55 in 1.25, A6 Electrical/Electronic Systems 60 in 1.5, A7 Heating and Air Conditioning 60 in 1.25 and A8 Engine Performance 60 in 1.25 hours, each followed by unscored research questions (ASE test pages, search extract). This portal's practice mock has 365 questions across A1-A8. Format: Eight separate tests (A1-A8) · 50 to 60 scored questions each · 1 to 1.5 hours each · plus unscored research questions. Passing standard: ASE sets the passing standard for each test and reports pass or fail; the standard was not confirmed in the sources we read, so none is quoted here.

• A1 - Engine Repair12.33%
• A2 - Automatic Transmission/Transaxle12.33%
• A3 - Manual Drive Train and Axles10.96%
• A4 - Suspension and Steering10.96%
• A5 - Brakes12.33%
• A6 - Electrical/Electronic Systems13.7%
• A7 - Heating and Air Conditioning13.7%
• A8 - Engine Performance13.7%

The content outline spreads questions across 8 areas: A1 - Engine Repair (12.33%); A2 - Automatic Transmission/Transaxle (12.33%); A3 - Manual Drive Train and Axles (10.96%); A4 - Suspension and Steering (10.96%); A5 - Brakes (12.33%); A6 - Electrical/Electronic Systems (13.7%); A7 - Heating and Air Conditioning (13.7%); A8 - Engine Performance (13.7%).

ASE does not require a licence or prior training to take the tests; to be certified you also need qualifying work experience, which ASE sets; confirm the current rules with ASE before you register.

ASE charges a US$34 registration fee per order and US$62 per general certification test (ASE, search extract). Recertification and other test series are priced separately.

ASE certifications must be renewed periodically; check ASE for the current recertification rules and fees.

Start with the heaviest areas of the content outline: A6 - Electrical/Electronic Systems (13.7%); A7 - Heating and Air Conditioning (13.7%); A8 - Engine Performance (13.7%). Then work through the remaining areas, practise jurisdiction-specific rules separately from the general content, and finish with timed full-length practice runs of A1-A8 in separate sittings.

Content outlines, fees and passing standards change; this guide follows the materials listed under Verification as of October 2026. Check the licensing authority and test administrator before you register.