Complete Auto Diagnostic

Complete Auto Diagnostic Complete Auto Diagnostic of Thurmont, Maryland, is an auto repair shop you can depend on.

Our team has more than 25 years of auto repair experience, so count on us to make effective repairs and provide honest service. Although we specialize in services for company vehicles, we also perform maintenance and repairs for individual car owners. When you bring your car to us for vehicle maintenance or repairs, we fix it and keep it safe until you pick it up. We aim to please our customers, s

o we are thorough and stand behind our work. Our goal is to do the work right the first time to help you avoid having to bring your car back.

01/01/2026

Happy New Year's!!!

12/25/2025

Complete Auto Diagnostic extends warm wishes to everyone for a safe and merry Christmas!🎄

11/27/2025

Happy Thanksgiving!🦃 Have a Safe and Blessed Thanksgiving to you and your family from our family! Complete Auto Diagnostic!

11/15/2025
11/13/2025
11/09/2025
10/30/2025

1320 likes, 54 comments. “ ”

Complete Auto Diagnostic is raffling off a 75 inch smart UHD 4K TV!!! For every $1500 you spend you will automatically b...
10/05/2025

Complete Auto Diagnostic is raffling off a 75 inch smart UHD 4K TV!!! For every $1500 you spend you will automatically be entered into the giveaway, there is no limit on entry’s! Let us get your car right so you can relax and enjoy your New TV! You can also take advantage of our financing and maintenance packages! Call or Message (240) 288-8320 to schedule your appointment! We can’t wait to service you! (We Treat You Like Family)

Address

1021 FSK Highway
Keymar, MD
21757

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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