ASE Updates Advanced Test

Release date: 1/15/2016

ASE releases updated Advanced Engine Performance Specialist (L1) Test and introduces Composite Vehicle Type 4.

LEESBURG, VA, January 15, 2016  –  The National Institute for Automotive Service Excellence (ASE) has released the updated Advanced Engine Performance (L1) test, featuring the new Composite Vehicle Type 4. The revised test was launched at the nearly 500 testing centers offering ASE tests in early January.
As in years past, some questions on the test refer the test taker to the composite vehicle reference. The updated L1 test requires use of the Composite Vehicle Type 4 (CV4) Reference Booklet, which can be downloaded from the ASE website. Test takers will receive a new printed copy of the CV4 booklet at the testing center to use during the test.  
"Automotive technology is continually changing and the ASE tests must change to keep pace and remain relevant. Updating the L1 test has been a major undertaking of our test development department over the past three years," said Tim Zilke, ASE President and CEO, "We owe many thanks to the dozens of subject matter experts from the automotive industry who have contributed their knowledge and ideas to updating and improving the test and the reference booklet."
During the L1 test rollout in the first half of 2016, there will be some important differences that test takers should note.

  • L1 certification and recertification tests will consist of 75 questions and have a 180 minute (3 hour) time limit.
  • Test takers will receive a "notice of completion" at the test center, rather than a pass/fail score report. Their myASE profile will show "Score Pending" for the test.
  • Official pass/fail test results for all L1 tests will be released through myASE in June 2016.
Starting in July 2016, the L1 (certification) test will have 60 questions (which includes 10 research questions) and a 2 hour and 15 minute time limit. The L1R (recertification) test will have 50 questions and a 2 hour time limit. At that time, test takers will receive pass/fail test results at the test center, immediately after completing their test.
The updated study guide and new CV4 reference booklet can be downloaded at For more details and answers to frequently asked questions about the updated L1 test, visit

The National Institute for Automotive Service Excellence was established in 1972 as a non-profit organization to help improve the quality of automotive service and repair through the voluntary testing and certification of automotive technicians and parts specialists. Today, there are more than 300,000 ASE-certified professionals at work in dealerships, independent shops, collision repair shops, auto parts stores, fleets, schools and colleges throughout the country.

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