At the top of this page, there’s a button granting you complete access to the ASE L4 practice test. Further down, you’ll find well-crafted practice exams for the ASE L4. Engaging with these tests enables you to identify your strengths, identify weaknesses, and assess your overall proficiency in the subject. 

For a more focused study approach, we present specialized quizzes tailored to specific ASE L4 exam sections, facilitating targeted practice in areas requiring further improvement.

ASE L4 Domain Exams

The ASE L4 exam, known as the “Automobile Advanced Engine Performance Specialist” exam, is designed to test the knowledge and skills of technicians in advanced engine performance and drivability. This exam covers various aspects of Advanced Driver Assistance Systems (ADAS), including general service and diagnosis, as well as specific systems like camera-based, radar-based, and ultrasonic (sonar)-based systems. 

Here’s a breakdown of the different areas of the ASE L4 exam:

ASE L4 General ADAS Service and Diagnosis Practice Exam 

  • Percentage of Exam: 5%
  • Number of Questions: 14 questions
  • Key Topics: It includes general knowledge of ADAS, safety precautions, and system operation principles, and diagnostic procedures.

Welcome to your ASE L4 Domain 1: General ADAS Service and Diagnosis

ASE L4 Camera-Based Systems Service and Diagnosis Practice Exam 

  • Percentage of Exam: 25%
  • Number of Questions: 10 questions
  • Key Topics: Focuses on the service and diagnosis of camera-based systems like lane departure warning, traffic sign recognition, and adaptive lighting systems.

Welcome to your ASE L4 Domain 2: Camera-Based Systems Service and Diagnosis

ASE L4 RADAR-Based Systems Service and Diagnosis Practice Exam 

  • Percentage of Exam: 30%
  • Number of Questions: 12 questions
  • Key Topics: Covers radar-based systems such as adaptive cruise control, blind-spot detection, and collision avoidance systems.

Welcome to your ASE L4 DOMAIN 3: RADAR-Based Systems Service and Diagnosis

ASE L4 Ultrasonic (Sonar)-Based Systems Service and Diagnosis Practice Exam 

  • Percentage of Exam: 10%
  • Number of Questions: 4 questions
  • Key Topics: Involves the service and diagnosis of ultrasonic systems, including parking assist and proximity detection systems.

Welcome to your ASE L4 Domain 4: Ultrasonic (Sonar)-Based Systems Service and Diagnosis

Exam DomainPercentage# of QuestionsKey Topics
General ADAS Service and Diagnosis35%14General knowledge of ADAS, safety precautions, system operation principles, and diagnostic procedures.
Camera-Based Systems Service and Diagnosis25%10Service and diagnosis of camera-based systems like lane departure warning, traffic sign recognition, and adaptive lighting systems.
RADAR-Based Systems Service and Diagnosis30%12Radar-based systems such as adaptive cruise control, blind-spot detection, and collision avoidance systems.
Ultrasonic (Sonar)-Based Systems Service and Diagnosis10%4Service and diagnosis of ultrasonic systems, including parking assist and proximity detection systems.

Other Important Aspects:

  • Total Number of Questions: The ASE L4 exam typically consists of 40-50 multiple-choice questions.
  • Exam Duration: The time allotted for the exam is usually around 1.5 to 2 hours.
  • Passing Score: The passing score can vary, but ASE uses a scaled score system with a passing mark typically set at 70%.
  • Preparation: It’s crucial to have hands-on experience and to study from ASE study guides and relevant technical manuals.
  • Recertification: ASE certification is valid for five years, after which technicians need to pass a recertification exam to maintain their ASE L4 status.

Please note that the exact percentages and number of questions can vary slightly from one exam to another, and it’s always a good idea to check the latest ASE study guides or official ASE resources for the most current information.

ASE L4 Exam Breakdown

The ASE L4 Exam, also known as the ASE Light Duty Hybrid/Electric Vehicle Specialist Certification Test, is a certification exam designed for automotive service professionals. It’s part of the certifications offered by the National Institute for Automotive Service Excellence (ASE). 

Here’s a breakdown of the exam:

  • Purpose: The ASE L4 certification is specifically tailored for technicians who repair and service light-duty hybrid and electric vehicles. It assesses a technician’s knowledge and skills in this specialized area.
  • Eligibility Requirements: To be eligible for the L4 exam, candidates must be certified in Automobile Electrical Systems (A6), Engine Performance (A8), and Light Duty Hybrid/Electric Vehicle Specialist (L3), or their equivalents.
  • Exam Format:
    • Number of Questions: Typically, the exam consists of 40-50 multiple-choice questions.
    • Duration: The test duration is usually 2 hours.
    • Content Areas: The exam covers various topics related to hybrid and electric vehicles, including safety, battery systems, electric drive systems, and other related components.
  • Preparation:
    • Study Materials: ASE offers study guides and practice tests to help prepare for the exam. Additionally, many third-party books and online resources are available.
    • Hands-On Experience: Practical experience in working with hybrid and electric vehicles is invaluable for the exam.
  • Registration and Costs:
    • Registration: Candidates can register for the exam through the ASE website.
    • Cost: The exam fee varies, and there may be additional fees for registration or study materials.
  • Test Centers: The exam is conducted at authorized ASE testing centers. Locations can be found on the ASE website.
  • Certification Validity:
    • The ASE L4 certification is valid for five years.
    • Technicians need to retest every five years to maintain their certification.
  • Benefits of Certification:
    • Professional Recognition: It is a mark of expertise and professionalism in the field.
    • Career Advancement: It can lead to better job opportunities and potentially higher pay.
  • Continued Education: Staying updated with the latest technology in hybrid/electric vehicles is crucial, as the field is rapidly evolving.
  • Community and Support: Engaging with professional communities and forums can provide additional support and insights into the certification process and career advancement.

This certification is highly regarded in the automotive industry and demonstrates a technician’s proficiency in the rapidly growing field of hybrid and electric vehicle technology.

How to be ASE L4 certified

To become ASE L4 certified, you need to follow specific steps and meet certain requirements. The ASE (Automotive Service Excellence) certification is a widely recognized benchmark in the automotive industry. Here’s a comprehensive guide:

  • Understand the ASE L4 Certification: The ASE L4 certification focuses on the diagnosis and repair of automobile and light truck steering and suspension systems. It’s designed for technicians who want to demonstrate their expertise in this specific area.
  • Meet the Experience Requirements: To be eligible for the L4 certification, you typically need a combination of formal education and hands-on work experience. The exact requirements can vary, so it’s important to check the latest criteria on the ASE website.
  • Prepare for the Exam: ASE offers various study guides and training resources to help you prepare for the L4 certification exam. These resources cover the range of topics that will be tested and can be found on the ASE Study Guides page.
  • Register for the Exam: Once you feel prepared, you can register for the L4 certification exam through the ASE website. The registration process involves selecting a test center and scheduling your exam.
  • Take the Exam: The L4 certification exam is a comprehensive test that covers various aspects of steering and suspension systems. It’s important to arrive at the test center well-prepared and on time.
  • Receive Your Certification: After passing the exam, you’ll receive your ASE L4 certification. This certification is a testament to your expertise and can be a valuable asset in your professional career.
  • Maintain Your Certification: ASE certifications are valid for a specific period, after which you’ll need to recertify. Staying updated with the latest industry developments and continuing education is crucial for maintaining your certification.

Our Experience Teaching ASE L4 Candidates To Pass The Exam

The development of the ASE L4 practice exams at Career Employer has been a journey marked by both challenges and rewarding experiences. Navigating the extensive scope of the exam and catering to the diverse needs of students striving for success has profoundly influenced our approach to coaching in the automotive field. 

This process has been instrumental in shaping our educational strategies and methodologies, ensuring that we effectively support each learner’s unique path toward achievement. Teaching Automotive Service Excellence (ASE) L4 certification from a lecturer’s perspective involves several key aspects:

  • Understanding the ASE L4 Certification: The ASE L4 certification is specialized, focusing on light-duty hybrid/electric vehicle specialist skills. As a lecturer, it’s crucial to have a deep understanding of the certification’s requirements, including the knowledge and skills that students need to pass the exam.
  • Curriculum Development: Developing a curriculum that covers all the necessary topics is essential. This includes understanding hybrid/electric vehicle systems, safety procedures, diagnostic techniques, and repair strategies. The curriculum should align with ASE L4 certification standards and be updated regularly to reflect any changes in technology or certification requirements.
  • Practical and Theoretical Balance: Balancing theoretical knowledge with practical skills is vital. Lecturers should provide hands-on training using actual hybrid/electric vehicles or simulators. This practical experience is crucial for students to understand real-world scenarios.
  • Safety Emphasis: Safety is paramount when working with hybrid and electric vehicles due to high voltage systems. Lecturers must emphasize safety procedures and ensure that students understand and can apply these procedures in a workshop environment.
  • Use of Technology in Teaching: Staying abreast of the latest technology and incorporating it into teaching methods can enhance learning. This might include using diagnostic tools, online resources, and interactive learning platforms.
  • Assessment and Feedback: Regular assessments to track student progress are important. These can include quizzes, practical tests, and mock ASE L4 exams. Providing constructive feedback helps students understand their strengths and areas for improvement.
  • Industry Connections: Maintaining connections with the automotive industry can provide insights into current trends and future developments. This can help in keeping the course content relevant and up-to-date.
  • Encouraging Continuous Learning: The automotive field, especially in areas like hybrid/electric vehicles, is constantly evolving. Encouraging students to engage in continuous learning and professional development even after they achieve certification is important.
  • Adapting to Diverse Learning Styles: Recognizing that students have different learning styles and adapting teaching methods accordingly can enhance the learning experience. This might include a mix of lectures, hands-on workshops, group discussions, and multimedia resources.
  • Preparing for the Exam: Finally, preparing students for the ASE L4 certification exam is a key responsibility. This involves not just covering the necessary content but also teaching test-taking strategies and managing exam anxiety.

Overall, teaching ASE L4 certification involves a combination of technical expertise, practical skills, and the ability to engage and inspire students.

The exceptional team at Career Employer has diligently created a comprehensive practice test for the ASE L4 certification, drawing from their vast experience and deep understanding of the exam’s requirements. Their expertise has been pivotal in aiding over 1000 professionals in the automotive service industry to successfully pass the exam. 

This team is composed of highly seasoned experts, each boasting over a decade of experience in the field. Recognizing the diversity in learning styles and needs, we provide various forms of the practice exam, each tailored to support different approaches to learning and preparation.

Effective Study Strategies and Methods

To effectively prepare for the ASE L4 exam, which focuses on Advanced Driver Assistance Systems (ADAS), it’s important to utilize a combination of resources and training materials. Here are some key strategies and resources to consider:

Study Guides and Training Packages

  • Motor Age Training: This platform offers a comprehensive study guide for the L4 Advanced Driver Assistance Systems (ADAS) Specialist exam. It includes a range of topics from various ASE certification areas, making it a valuable resource for exam preparation​​.
  • Tech-Labs: They offer an in-depth training system for ASE L4, which includes practical skills in various aspects of driver assistance systems like lane change assistants, park assist with rear-view cameras, Ethernet for high-speed applications, CAN bus systems, and vehicle stabilization technologies like ABS, ESC, and TCS. Their training combines hardware systems, diagnostic software, and e-learning courses with integrated fault scenarios, videos, and animations​​.
  • Aftermarket Matters: This source highlights the focus of the L4 test on diagnosing, servicing, and calibrating radar, camera, ultrasonic, and other advanced driver assistance systems. It emphasizes the importance of understanding the composite vehicle type 1 reference, which is used in the exam. To be eligible for the L4 exam, candidates must have passed either the Automobile Electrical/Electronic Systems (A6) or Collision Mechanical and Electrical Components (B5) test​​.
  • Pocket Prep: While specifically focusing on L1, L2, and L3 exams, Pocket Prep offers insights into the nature of ASE certification exams. Understanding the format and approach of these exams can be beneficial for L4 exam preparation as well. Their platform provides a variety of exam prep resources across different professional fields, which could be useful for broadening your technical understanding​​.

General Study Strategies

  • Understand the Exam Format: Familiarize yourself with the types of questions and the structure of the exam.
  • Practical Experience: Gain hands-on experience with ADAS technologies, as this will provide a practical understanding that complements theoretical knowledge.
  • Review and Repeat: Regularly review the study materials and practice with sample questions to reinforce learning.
  • Join Online Forums and Groups: Engaging with peers and experts in online forums can provide additional insights and tips for the exam.
  • ASE Study Guides: The official ASE website offers detailed study guides for each test series. These guides provide a roadmap of the tests, sample questions, and suggestions for further preparation. ASE Study Guides
  • Reddit’s Automotive Training Community: Engage with the automotive training community on Reddit for practical advice. Members often share their experiences and tips for passing the ASE tests, emphasizing the importance of consistent study and using up-to-date study guides. Reddit – Automotive Training
  • MOTOR Magazine Article: MOTOR magazine provides insights into the ASE L4 exam, including tips recommended by psychologists to become a more successful test-taker, such as getting adequate sleep before the exam. MOTOR – ASE L4 Exam
  • Tech-Labs ASE L4 Training: Tech-Labs offers training for the Advanced Driver Assistance Systems (ADAS) Specialist Test (L4), focusing on effective and quick learning techniques. Tech-Labs – ASE L4 Training
  • YouTube Webinar: A hands-on webinar on ASE test questions, providing practical test prep tips. YouTube – ASE Test Prep
  • Remarkable Results Radio Podcast: This podcast discusses the new ADAS L4 ASE Certification, including requirements like three years of relevant experience. Remarkable Results Radio – ASE L4
  • Offers effective study tips and emphasizes the importance of early preparation for the ASE test. Free ASE Study Guides
  • Provides online ASE practice tests that serve as a personal study guide, with both untimed and timed options.
  • Shop Press by Dorman Products: Shares seven tips for passing ASE exams, including taking practice tests and focusing on weak areas. Shop Press – ASE Test Tips

By combining these resources and strategies, you can enhance your preparation for the ASE L4 exam. Remember to regularly review the materials, engage in practical training, and stay updated with any changes in the exam format or content.


The cost of obtaining the ASE L4 Board Certification, which focuses on Advanced Driver Assistance Systems (ADAS), involves several components, including the exam fee, study materials, and training courses.

Exam FeeCost for advanced level tests (like L1, L2, L3). Specific cost for L4 not stated.$94 (estimated)
Study MaterialsCost varies based on provider and comprehensiveness.Varies
Training CoursesCovers various aspects of ADAS. Cost depends on provider and depth.Varies
Recertification CostValid for 5 years. Maximum fee for multiple tests in one registration window.$175
Prerequisite CertificationsRequired to pass A6 or B5 tests for L4 registration.Varies
  • Exam Fee: The ASE L4 test is one of the advanced level tests offered by the National Institute for Automotive Service Excellence (ASE). The cost for advanced level tests like L1, L2, and L3 is typically USD 94 each. However, the specific cost for the L4 exam was not explicitly stated in the sources. For reference, standard ASE certification tests cost USD 47 per test, plus a USD 34 registration fee for each order​​.
  • Study Materials: ASE provides study guides to help prepare for the L4 exam. These guides can be crucial for passing the exam on the first attempt, as failing and retaking the test incurs additional fees. The cost of these study materials varies depending on the provider and the comprehensiveness of the materials. Utilizing practice tests and study guides is recommended to reduce the likelihood of having to pay for re-testing​​.
  • Training Courses: Training for the L4 certification includes various aspects of ADAS, such as understanding lane assistance systems, park assist systems, Ethernet and CAN bus systems, and vehicle stabilization systems like ABS, ESC, and TCS. Training courses can be quite comprehensive, covering the operation, diagnosis, and calibration of these systems. The cost of these training courses can vary significantly based on the provider and the depth of the training​​.
  • Recertification Cost: ASE certifications are valid for five years. Recertification tests cost USD 47 for each test, plus a USD 34 registration fee for each order. However, for recertification, there is a total cost cap of USD 141 plus the USD 34 registration fee, meaning no matter how many recertification tests are taken, the maximum fee will not exceed USD 175​​.
  • Additional Information: To register for the ASE L4 ADAS Specialist test, automotive service professionals must have passed either the Automobile Electrical/Electronic Systems (A6) or Collision Mechanical and Electrical Components (B5) test. This prerequisite might involve additional costs if these certifications are not already held.

In conclusion, the total cost for ASE L4 Board Certification is a combination of the exam fee, study materials, training courses, and potentially costs related to prerequisite certifications. The exact amount will depend on the choices made regarding study materials and training courses. It’s also important to consider the possibility of retesting fees and the cost of recertification every five years.

Reliable Study Materials and Resources

To prepare for the ASE L4 certification exam, which is focused on Advanced Driver Assistance Systems (ADAS), you have several excellent online resources at your disposal:

  • Motor Age Training: This platform offers a comprehensive L4 Advanced Driver Assistance Systems (ADAS) Specialist practice test, which includes 70 sample questions to gauge your knowledge in this field. This resource is particularly useful for building confidence and understanding the format of the actual ASE exam. Motor Age Training also provides study sets for various automotive specialties, which can be a valuable addition to your preparation​​.
  • ASE Test Prep: They offer a broad range of resources for ASE test preparation. Their platform is designed to aid in the preparation of multiple ASE tests and is accessible via smartphone, making it convenient for on-the-go learning. They provide a 100% money-back guarantee, highlighting their confidence in the effectiveness of their preparation materials. 
  • ASE Certification Training HQ: This online hub provides a wide array of study guides and resources specifically tailored for ASE certification exams. They recommend comprehensive study guides that promise a high probability of passing the ASE exam. These guides are available for purchase and cover various aspects of automotive service and repair. The site also offers free tests for different ASE topics, along with blog posts and articles that can provide additional insights and tips for exam preparation​​.
  • ASE Practice Test [Free] | Test-Guide: Test-Guide provides free ASE practice tests, including for the L4 certification. These practice tests can be a valuable tool in your preparation. Access the practice tests at Test-Guide.
  • ASE L4 Training | Tech-Labs: Tech-Labs offers ASE L4 training resources, which could be beneficial for hands-on learning and understanding of the ADAS systems. Find out more about their offerings at Tech-Labs ASE L4 Training.
  • ASE Study Guides: ASE provides study guides to help gauge your test readiness and focus your preparation. Each guide gives details on individual tests, includes sample questions, and offers suggestions for further preparation.
  • Test Prep and Training – Automotive Service Excellence (ASE): The official ASE practice tests, delivered exclusively online, help service professionals prepare for their next ASE certification test by trying out questions that are similar to the actual test. 

These resources should provide a well-rounded approach to your preparation for the ASE L4 certification exam.

Tips for Exam Day

Here are some more exam day tips for the ASE L4, gathered from various sources including Reddit and other forums:

  • Process of Elimination: When unsure about an answer, use the process of elimination to narrow down the choices. This strategy can increase your chances of selecting the correct answer.
  • Preparation and Relaxation: Ensure you get good sleep and study in a quiet place. Being well-rested and relaxed can significantly impact your performance.
  • Understanding Question Formats: Familiarize yourself with the different types of questions you’ll encounter. There are various formats, such as direct/completion questions, true or false (Technician A or B) questions, and “Except and Least Likely” questions. Each type requires a specific approach to read and answer effectively​​.

Test-Taking Strategy

  • Practice: Regularly review questions and answers to get used to the format and to build test-taking stamina.
  • Time Management: Be mindful of the time, but don’t let it dominate your focus. Answer each question efficiently.
  • Elimination Process: Eliminate obviously incorrect answers to narrow down your choices.
  • Trust Your Instincts: Often, your first choice is the correct one. Be cautious about changing answers upon reviewing.
  • Answer All Questions: There’s no penalty for guessing. If unsure, make your best guess after eliminating unlikely choices.
  • Review Marked Questions: If you’ve marked questions for review, revisit them, but be cautious about changing initial responses unless you’re sure​​.


  • Practice Tests: Engage in practice tests to familiarize yourself with the test format and to assess your knowledge.
  • Study Guides: Invest in up-to-date study guides and resources. Older versions might not completely prepare you for the current test format​​.

Post-Exam: Next Steps

After completing the ASE L4 exam, there are several strategies and steps you can take to ensure continued success and further your automotive technician skills:

  • Review and Reflect on the Exam: Reflect on the questions and topics covered in the exam. This helps in identifying areas where you may need further study or practice.
  • Continuous Learning and Practice: Stay updated with the latest automotive technologies and practices. This could include participating in online forums, workshops, and continuous education programs.
  • Workplace Experience: Leverage your workplace experience for practical knowledge. Discuss challenging scenarios with colleagues and use real-life situations as learning opportunities.
  • Seek Employer Support: Don’t hesitate to ask your employer for assistance with test fees and study materials. Many employers are willing to support their technicians’ certification efforts, as it also benefits their business​​.
  • Stay Informed About Test Changes: Keep up-to-date with any changes or updates in the ASE testing process. For instance, the L4 test format and requirements may evolve over time, and being informed will help in better preparation​​.
  • Stay Updated with Forums: Engaging with online forums such as Reddit’s r/automotivetraining and r/Justrolledintotheshop can provide insights from other professionals who have taken the ASE L4 exam. These forums often share experiences, tips, and updates relevant to automotive professionals.
  • Continued Learning: Keep your knowledge up-to-date by following resources like and for practice tests and study guides. Continuous learning is crucial in the automotive field, especially with evolving technologies.
  • Networking and Professional Development: Participating in professional groups, online communities, and attending workshops or seminars can be beneficial. Networking with other professionals can provide opportunities for learning and career advancement.
  • Prepare for Results and Possible Retake: Be prepared for the exam results. If you pass, consider your next steps in professional development or additional certifications. If you don’t pass, use the experience as a learning opportunity to focus your studies for a retake.
  • Stay Informed with ASE Resources: Regularly check the official ASE website for updates, additional resources, and information about the L4 certification and other ASE certifications.
  • Utilize YouTube Educational Content: Channels like The Engineers Post offer informative videos that can provide additional insights and learning opportunities.

Remember, the journey of professional development doesn’t end with the exam. Continuous learning, staying engaged with the community, and keeping up with industry advancements are key to success in the automotive field.


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