Ase practice test

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Use our free ASE practice tests to pass you exam and get your ASE certification. Study with actual ASE questions and answers - updated for 2021!

The National Institute for Automotive Service Excellence (ASE) is a non-profit professional certification group that provides professional certification to those in the automobile repair and service industry throughout the United States as well as parts of Canada. 

Summary: Try a free ASE practice test below to see how you do. 

ASE Practice Tests

Other Great ASE Resources

Many more online resources are available for professionals interested in preparing for the ASE. Many of these resources can be found absolutely free online, such as:

ASE EXAM Description

ASE Certification is granted to automotive professionals who have gained at least two or more years of relevant work experience in their field and passed the requisite ASE certification test. ASE certification provides an automotive professional with a shoulder insignia bearing the ASE logo, an ID card for their wallet, and a framed certificate for his or her shop.

These items convey trustworthiness and professionalism to automotive customers, so utilization of available ASE practice tests and other resources is vital for any automotive professional.

The ASE offers many certifications covering all aspects of the automotive repair and automotive service industries. Automotive professionals should make sure to study the ASE practice tests available for their particular ASE certification test. 

There are over 40 ASE certifications available, including:

ASE Practice Tests

ASE Auto Maintenance and Light Repair Certification Test (G1)

This test includes 55 scored questions, as well as 10 research questions which are not scored. This test requires candidates to demonstrate knowledge related to the maintenance or light repairs of:

  • Engine Systems
  • Automatic Transmissions
  • Manual Drive Train/Axles
  • Suspension/Steering
  • Brakes
  • Electrical
  • Heating/Air Conditioning

ASE Automobile & Light Truck Certification Tests (A1 - A9)

This series of tests is intended for those who will perform vehicle repairs as a part of their job function. Candidates must show an understanding of the skills and knowledge necessary in order to service and repair cars, light trucks, and SUVs. Tests offered in this series include:

  • 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 – Light Vehicle Diesel Engines 

ASE Collision Repair & Refinish Certification Tests (B2 – B5)

Those who wish to be recognized as ASE-Certified Master Collision Repair Technicians will take this certification test. Candidates must show the ability to analyze and repair damage due to automotive collision, as well as paint damage. Tests offered in this series include:

  • B2 – Painting & Refinishing 
  • B3 – Non-Structural Analysis & Damage Repair 
  • B4 – Structural Analysis & Damage Repair 
  • B5 – Mechanical & Electrical Components

ASE Damage Analysis & Estimating Certification Test (B6)

This certification test is intended to evaluate professionals who provide estimates for repairs due to collision damage. Candidates must be able to properly analyze and estimate collision damage on an automobile. This test requires candidates to demonstrate knowledge related to the assessment of damage such as:

  • Damage Analysis
  • Estimating
  • Legal/Environmental Practices
  • Vehicle Construction
  • Vehicle Systems
  • Parts Identification/Source
  • Customer Relations/Sales

ASE Automobile Service Consultant Certification Test (C1)

Any automotive professionals who work in a service consultant role must pass this certification. This test requires candidates to demonstrate knowledge related to automotive customer service such as:

  • Communications
  • Customer/Internal Relations
  • Vehicle Systems Knowledge
  • Sales Ability
  • Shop Operations

ASE Truck Equipment Certification Tests (E1 – E3)

Those who wish to be recognized as ASE-Certified Master Truck Equipment Technicians must pass this certification test. Candidates must show the ability to diagnose and repair various truck equipment, as well as related systems, on all truck and tractor classes. Tests offered in this series include:

  • E1 – Truck Equipment Installation & Repair 
  • E2 – Electrical/Electronic Systems Installation & Repair
  • E3 – Auxiliary Power Systems Installation & Repair

ASE Alternate Fuels Certification Test (F1)

This certification test is intended to evaluate technicians for their ability to demonstrate and apply skills needed in order to diagnose, service, or repair compressed natural gas automobiles. This test requires candidates to demonstrate knowledge related to:

  • Vehicle Inspection
  • Equipment Installation
  • Leak Testing/Repairs
  • Emissions
  • System Diagnosis
  • Maintenance/Repair
  • Cylinder Safety

ASE Transit Bus Certification Tests (H1 – H8)

This test is intended to evaluate the ability of Transit Bus Technicians to demonstrate the knowledge and ability to diagnose, service, or repair various transit bus systems.

Tests offered in this series include:

  • H1 – Compressed Natural Gas (CNG) Engines 
  • H2 – Diesel Engines 
  • H3 – Drive Train 
  • H4 – Brakes 
  • H5 – Suspension & Steering 
  • H6 – Electrical/Electronic Systems 
  • H7 – Heating Ventilation & Air Conditioning (HVAC) 
  • H8 – Preventive Maintenance & Inspection (PMI) 

ASe Advanced Engine Performance Specialist Certification Test (L1)

This test is intended to evaluate the ability of technicians to demonstrate the knowledge and ability to diagnose problems related to emissions and sophisticated drivability in automobiles, light-duty trucks, and SUVs. This test requires candidates to demonstrate knowledge related to:

  • General Power Train Diagnosis
  • Computerized Power Train Controls
  • Ignition Systems
  • Fuel/Air Induction Systems
  • Emission Control Systems

ASE Electronic Diesel Engine Diagnosis Specialist Certification Test (L2)

This test is intended to evaluate the ability of technicians to demonstrate the knowledge and ability to diagnose problems related to the performance of sophisticated diesel engines. This test requires candidates to demonstrate knowledge related to:

  • General Diesel Engine Diagnosis
  • Electronic Diesel Engine Controls
  • Diesel Engine Air Induction/Exhaust Systems
  • Diesel Fuel System

ASE Light Duty Hybrid/Electric Vehicle Specialist Certification Test (L3)

This test is intended to evaluate the ability of technicians to demonstrate the knowledge and ability to diagnose problems related to hybrid/electric automobiles, light-duty trucks, and SUVs. This test requires candidates to demonstrate knowledge related to:

  • Battery System Diagnosis
  • Internal Combustion Engine
  • Drive System
  • Power Electronics
  • Hybrid Support Systems

ASE Parts Specialist Certification Tests (P1, P2, and P4)

This test is intended to elevate the level of service offered by automobile specialists as well as medium-heavy truck parts specialists. 

 Tests offered in this series include:

  • P1 – Medium-Heavy Truck Parts Specialist 
  • P2 – Automobile Parts Specialist 
  • P4 – General Motors Parts Consultant 

ASe Medium-Heavy Truck Certification Tests (T1 – T8)

This test is intended to evaluate the ability of Medium and Heavy Truck Technicians to demonstrate the knowledge and ability to diagnose, service, or repair various Class 4- Class 8 tractors and trucks.

Tests offered in this series include:

  • T1 – Gasoline Engines 
  • T2 – Diesel Engines 
  • T3 – Drive Train 
  • T4 – Brakes 
  • T5 – Suspension & Steering 
  • T6 – Electrical/ Electronic Systems 
  • T7 – Heating, Ventilation & Air Conditioning (HVAC) 
  • T8 – Preventive Maintenance Inspection 

Undercar Specialist Exhaust Systems Test (X1)

This test is intended to evaluate the ability of technicians to demonstrate the knowledge and ability to diagnose and repair problems related to automobile brakes, suspension/steering, and exhaust systems. This test requires candidates to demonstrate knowledge related to:

  • Exhaust System Inspection/Repair
  • Fabrication
  • Installation
  • Emissions Systems Diagnosis/Repair
  • Regulations Regarding Exhaust System Repairs

ASE Administration

All ASE certification tests are available throughout the year. Upon registration for your desired ASE exam, you will have 90 days to schedule your test appointment at your closest Prometric testing center. Tests are administered morning, afternoon, evenings, and weekends according to availability. 

Registration for the ASE Test

Test registration dates are as follows:

ASE Test RegistrationRegistration Dates
 Winter January 10, 2021 - March 31, 2021
 Spring April 10, 2021 - June 30, 2021
 Summer July 10, 2021 - September 30, 2021
 Fall October 10, 2021 - December 31, 2021

ASE Test Fees

Registration for any combination of ASE certification tests carries a $36 fee. However, this fee is only applicable once in any 90-day window in which you apply for certification tests. Additionally:

  • Most certification tests are $39 each, with the exception of L1, L2, and L3
  • Advance Level Certification Tests- L1, L2, and L3- are $78 each
  • Recertification fees are the same as their initial certification tests, with a limit of $117 regardless of the amount of recertification tests registered for

ASE Requirements

Automotive Service Excellence certification is required by most employers of those in the automotive repair or automotive service industries. Make sure to study the appropriate ASE practice tests for your automotive professional position. 

ASE Scores

For ASE certification exams completed on a computer, a detailed score report is available immediately upon completion of your test(s). Scores for written tests are mailed out about 4 weeks following completion of the ASE certification test. 

Performance on an Automotive Service Excellence certification exam is vital for any automotive professional employability. To register for your ASE and begin on your ASE practice tests, please visit the official site to learn more.


How much does an ASE test cost?

It depends on which ASE tests you will be taking. Most certification tests cost $39. Advance level certification tests cost $78 each. Fees are only applicable once in any 90-day window.

Are ASE tests hard?

As with any test, the more you prepare, the better you will do. Free practice tests are a great way to prepare for the ASE. Our free practice tests offer automatic scoring and answer explanations to help you learn the material.

Last Updated: 8/10/2021


The Official ASE Practice Tests are online quizzes, using ASE-style questions that allow you to judge your test readiness, increase your knowledge, and ease your anxiety over taking actual ASE certification tests. Like the ASE certification tests, the practice tests use quality questions of the same format and difficulty, Because of this similarity, you’re able to test your readiness prior to taking an actual ASE certification test.

The practice tests allow you to flag questions for review, navigate back and forth, and see explanations for each question — either right after answering it or when you’ve completed the test. A progress review page shows those questions you flagged or left unanswered, allowing you to return and try again later. You can also stop at any point, return later, enter the same code, and pick up where you left off.

The practice tests provide a printable performance report and explanations for correct and incorrect answers, giving you the opportunity to improve your skills. By using the performance review at the conclusion of the practice test, you can determine which content areas require additional preparation before moving on to an actual ASE test. The Practice Tests have about half as many questions as the actual ASE certification tests. It’s not about the number of questions you take. It’s about what strengths and weaknesses the questions identify after you take them.

You have 60 days from the date you redeem a voucher code for a practice test to complete your review.

Available Tests

  • Automobile Tests A1 – A8
  • Medium/Heavy Truck Tests (currently T2, T4, T6, and T8 only)
  • Automobile Service Consultant Test (C1)
  • Automobile Maintenance and Light Repair Test (G1)
  • Automobile Advanced Engine Performance Specialist Test (L1)
  • Automobile Parts Specialist Test (P2)

Important Information

  • There is only one set of questions currently available for each ASE Practice Test. You will not get a different set of questions by using more than one voucher code for the same practice test.
  • The practice test vouchers are non-refundable

ASE Practice Tests Details

ASE Practice Test NameNumber of Questions
A1 – Auto: Engine Repair25
A2 – Auto: Automatic Transmission/Transaxle 25
A3 – Auto: Manual Drive Train and Axles 20
A4 – Auto: Suspension and Steering 20
A5 – Auto: Brakes 23
A6 – Auto: Electrical/Electronic Systems 25
A7 – Auto: Heating and Air Conditioning 25
A8 – Auto: Engine Performance 25
C1 – Auto: Service Consultant 25
G1 – Auto: Auto Maintenance and Light Repair 28
L1 – Auto: Advanced Engine Performance Specialist 25
P2 – Parts: Automobile Parts Specialist 38
T2 – M/H Truck: Diesel Engines 28
T4 – M/H Truck: Brakes 25
T6 – M/H Truck: Electrical/Electronic Systems 25
T8 – M/H Truck: Preventive Maintenance and Inspection25

How to Order

Vouchers for the Official ASE Practice Tests can be purchased by an individual or employer through your myASE login. The voucher codes will be emailed to your address on file.When you are ready to take a practice test, go to, enter your voucher code, and select the test you wish to take. Each voucher can be used to access one practice test.

Note that ASE Practice Test vouchers are for individual use only. Individual purchasers may not sell, resell, distribute, transfer, or assign vouchers to anyone else. They may only be used by the purchaser for personal use only. Schools or business purchasers may only distribute vouchers to a single individual student or employee for individual use only, and otherwise may not sell, resell, distribute, transfer, or assign vouchers to anyone else.

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Study Guides

The ASE Study Guides

ASE’s Study Guides help you gauge your test readiness and focus your preparation. Each Guide — there’s one for each test series — gives details on the individual tests, includes sample questions, and offers suggestions for further preparation.

To get the best results, start with the Test Specifications Section for each test to see what’s covered, the number of questions, and major content areas. Then read the Task Lists to learn what’s behind each content area, specific topics covered on each test, and how many questions to expect.

As you review each task, if you’re not sure about a specific skill, put a check mark next to it. When you’re done, you’ll know whether you need just a quick review, or more focused training on those topics that you checked. Training Resources are included at the end of each Guide for those who need additional study or training.

Sample Questions are included to give you a sense of the types and styles of questions you will encounter.

ASE A1 Practice Test - ASE A1 Engine Repair Test Prep - Test 1

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Our online ASE certification practice tests will prepare students and technicians to pass their ASE tests and more


Our service offers you 24/7 online access to online ASE certification practice tests. Additionally, these valuable tools are designed to teach you the key terms and diagnostic skills you need to pass an ASE certification test. These skills are necessary to pass ASE certification tests or ASE entry-level certification test. We're a perfect fit for all school programs as well as shops and individual technicians eager to learn and are ready to excel.

Our service is ideal for:

Online learning is not only convenient, but mandatory in most schools. Educators are scrambling to provide access to meaningful online solutions to keep their students engaged and progressing in their education.

As an ASE Certified Technician, you understand the value of ASE certification and what it means to your own career. You understand that you need to keep up on existing ASE certifications and strive for additional ASE certifications. Likewise, once you are ASE certified, you must renew your certification every 5 years. Additionally, you also understand that ASE certification tests can be difficult to pass. That's why successful technicians have relied on us for years. Our ASE certification practice tests are the best in the industry in preparing technicians to pass their ASE certification tests.

NEW Practice Tests!

We've just launched three new practice tests. (C1) Automotive Service Consultant, (X1) Undercar Specialist, and (P2) Parts Specialists.

FREE ASE Certification Practice test

Our professional practice tests now include a library of over 2,000 total questions.

Automotive School Programs

  • ASE Entry-level test readiness

  • Certificate Program

  • Automated reporting and grading

  • 144 total student tests

  • Full and ASE Content Area tests

  • Measurable goals and accountability

  • Teach to the National Standard of the ASE Education Foundation

  • Extremely affordable

Learn more

ASE entry-level certification

Automotive Repair Shops

  • Use as pre-employment assessment tools

  • Verify ASE test readiness before paying for your team to take their ASE certification tests

  • Include in your employee development program and retain your best employees

  • Develop happy employees to retain satisfied customers and enjoy a better bottom line

Learn more

FREE ASE Practice Tests

Automotive Technicians

  • Prepare for multiple tests with a single subscription

  • Practice anywhere and any time using your smartphone

  • Benefit from a proven track record of success with almost 25 years helping technicians pass their ASE certification tests

  • Take your ASE certification test with confidence – and a 100% money-back guarantee!

Learn more

Pass the ASE test

Take a FREE Sample Test. See how you stack up! Our ASE certification practice tests will prepare students and technicians to pass their ASE tests and more


Take our FREE ASE A5 Brakes tests and see how your skills stack up against other students and technicians. See how our service works and see how you score.

Automotive instructors: Need a reliable tool for evaluating your students. We offer a full suite of professional-level onine ASE certification tests & quizzes. We feature a combination of knowledge-based questions designed to help prepare students for the ASE Entry-Level Certification test. Our NEW reports will identify which students are struggling to understand the material. At the same time, our practice tests function as an ASE study guide by explaining correct and incorrect answers in real time when students answer the questions.

Our student site, ASE School Prep, includes 180 unique tests and quizzes covering 15 different ASE areas.

With almost 25 years serving the automotive industry, plus the backing of nationwide repair shops, and the ASE Training Managers Council, ASE Test Prep is the right solution for your school, shop, or for technicians to pass their own ASE certification tests.

Still have questions?

Visit our FAQ's page for expert advice. Learn more about qualifying for ASE certification and access valuable information on good study habits. We've compiled our most frequently asked customer questions over the years to make the process even easier! Not sure which subscription is right for you? Our experts break it down and also offer easy-to-understand suggestion. Expertise made easy.

ASE Test Prep is American owned & operated

Practice test ase

Take a free ASE practice test.

Free ASE Practice Tests, Illustrated ASE Study Guides, ASE Test Prep Videos, 20 Question Quizzes; over 1000 Questions and Explanations. At the end of each practice test, a scored quiz reinforces the material covered in the guide.

It's true and unfortunate that many people fail these exams. Most of the time, it's because they weren't prepared. The questions on the test are real-world and geared toward an industry standard. The answers were not what they expected.

The good news is it's mostly common sense, and most people fail by only a few questions. Amazing! If you improve your score by a few questions, you pass. We suggest you study. Start with a detailed ASE certification study guide in the menu section or take a quick 20 question ASE practice test below.

ASE Practice Tests

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These scored 20 question quizzes work on all devices and help to reinforce the material studied in the guide.

ASE Test Prep Videos

Free ASE Test Prep Videos by

View a 10 question ASE Video with illustrated answers designed to improve user retention. Grab some study time on any device. These videos are hosted on YouTube - Subscribe Today!

ASE A1-A8 Study Guide - Plus the G1!

It contains eight (A-series) ASE practice tests designed by ASE Master Technicians and created by certified automotive professionals. It has free ASE test prep videos for the ASE A1 through A8 certification exams. It also contains a practice test with detailed explanations for the G1 Maintenance and Light Repair test. Plus a free ASE Quiz after each study guide for better clarity and understanding. Use the Read more... section for even greater impact.

ASE Test Registration

They're designed to help automotive professionals prepare for the upcoming ASE testing season. ASE testing is now available all 12 months of the year. Plus there are a full 90 days to prepare, register, and take your test. Sign up for MyASE. This page will keep you informed of any new or upcoming ASE certification tests provided by ASE. They also offer a history of ASE certification and the ASE Renewal App tests taken in the past.

ASE A5 Practice Test - ASE A5 Brakes Test Prep - Test 1

Free ASE Test Questions A1-A8

Are you looking to ace the Automotive Service Excellence (ASE) A1-A8 tests on your way to becoming an ASE certified Master Mechanic?

If so, try out these free ASE test questions to build your knowledge and prepare for the exams.  Choose any of the free A1-A8 tests to practice showing off your knowledge and mechanic skills for free to know where you stand!  After clicking on your answer, be sure to review what the correct answer and explanation.

By practicing on these free ASE test questions, you’ll know exactly where to study up on, whether it’s transmission/transaxle, suspension & steering, or even brakes – you’ll know exactly which study guides to hone in on and follow.  Be sure to check out the auto mechanic certification requirements by state for additional information!

Good luck!

A1 – Engine Repair

  • General Engine Diagnosis
  • Cylinder Head and Valve Train Diagnosis and Repair
  • Engine Block Diagnosis and Repair
  • Lubrication and Cooling Systems Diagnosis and Repair
  • Fuel, Electrical, Ignition, and Exhaust Systems Inspection and Service

A2 – Automatic Transmission/Transaxle

  • General Transmission/Transaxle Diagnosis (Mechanical/Hydraulic Systems, Electronic Systems)
  • In-Vehicle Transmission/Transaxle Maintenance and Repair
  • Off-Vehicle Transmission/Transaxle Repair (Removal and Installation, Disassembly and Assembly, Friction and Reaction Units)

A3 – Manual Drive Train & Axles

  • Clutch Diagnosis and Repair
  • Transmission Diagnosis and Repair
  • Transaxle Diagnosis and Repair
  • Drive Shaft/Half-Shaft Diagnosis and Repair (Front and Rear Wheel Drive)
  • Drive Axle Diagnosis and Repair
  • Four-Wheel Drive/All-Wheel Drive Component Diagnosis and Repair

A4 – Suspension & Steering

  • Steering Systems Diagnosis and Repair (Columns, Units, Linkage)
  • Suspension Systems Diagnosis and Repair (Front, Rear)
  • Related Suspension and Steering Service
  • Wheel Alignment Diagnosis, Adjustment, and Repair
  • Wheel and Tire Diagnosis and Service

A5 – Brakes

  • Hydraulic, Power Assist, and Parking Brake Systems Diagnosis and Repair
  • Drum Brake Diagnosis and Repair
  • Disc Brake Diagnosis and Repair
  • Electronic Brake Control Systems (ABS, TCS, ECS) Diagnosis and Repair

A6 – Electrical/Electronic Systems

  • General Electrical/Electronic System Diagnosis
  • Battery and Starting System Diagnosis and Repair
  • Charging System Diagnosis and Repair
  • Lighting Systems Diagnosis and Repair
  • Instrument Cluster and Driver Information Systems
  • Body Electrical Systems Diagnosis and Repair

A7 – Heating & Air Conditioning

  • A/C System Service, Diagnosis and Repair
  • Refrigeration System Component Diagnosis and Repair
  • Heating and Engine Cooling Systems Diagnosis and Repair
  • Operating Systems and Related Controls Diagnosis and Repair

A8 – Engine Performance

  • General Engine Diagnosis
  • Ignition System Diagnosis and Repair
  • Fuel, Air Induction, and Exhaus Systems
  • Emissions Control Systems Diagnosis and Repair
  • Computerized Engine Controls Diagnosis and Repair

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ASE Practice Tests. 12 ASE Practice Exams

Take one of our 13 Free 2021 ASE Practice Tests below to see what type of questions appear on an ASE auto mechanic certification exam.  The first 12 are specific free practice exams and the last one below is general to all areas.  An auto mechanic can get certified by taking the Automotive Service Excellence (ASE) exams, covering fourteen different subject areas, such as diesel and gas engines, trucks, buses, damage repair, auto components and much more.

These practice exams were written by Dr. John Kershaw, ASE Test Prep Expert, ASE Test Question Developer, ASE Certified Master Technician, ASE Master Truck Technician and Auto Industry Technical Instructor. 

For complete A Series practice, go to the A1 - A8 Practice Test Set with 800 Questions.

For more free practice questions, see the following tests geared toward specific ASE subject areas:

ASE A1 - Engine Repair Practice Test

ASE A2 - Automatic Transmission Practice Test

ASE A3 - Manual Drive Train and Final Drive Practice Test

ASE A4 - Suspension and Steering Practice Test

ASE A5 - Brakes Practice Test

ASE A6 - Electrical / Electronics Practice Test

ASE A7 - Heating and Air Conditioning Practice Test

ASE A8 - Engine Performance

ASE A9 - Light Vehicle Diesel Engines

ASE G1 - Auto Maintenance and Light Repair

ASE L1 - Advanced Engine Performance Specialist

ASE L2 - Electronic Diesel Engine Diagnosis Specialist

ASE L3 - Light Duty Hybrid / Electric Vehicle Specialist

Our ASE practice test materials were written by Dr. John Kershaw, an ASE test prep expert.  Dr. Kershaw has been an ASE test question developer, ASE Certified Master Technician, ASE Master Truck Technician, auto industry technical instructor and was among the first candidates certified by the ASE in 1972.  

Free ASE Practice Test


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