Ace Diagnostics

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3139 Los Feliz Dr Ste 5
Thousand Oaks, CA 91362

ACE Diagnostics is a reputable smog testing and repair facility in Thousand Oaks, CA, offering honest, friendly, and professional service to all vehicle owners. With their STAR Certification, they specialize in smog testing for a wide range of vehicles, ensuring compliance with environmental regulations.

Located at 3139 Los Feliz Dr Ste 5, ACE Diagnostics is committed to providing reliable and efficient smog testing services, guaranteeing a hassle-free experience for their customers.

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Reviews

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4.05 reviews
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Leandro F.
9/2/2025

Thank you for taking care of my car's service and guide me through what was needed to complete the smog inspection and certification. The best price in town. I will be happy to come back for the...

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Michelle M.
8/22/2025

UPDATE: 08/22/25 Since I can't reply back to the owner on yelp, heres my reply. I was there when my car was dropped off at the shop. Please stop with the lies saying you guys were told to take the...

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Stu N.
9/2/2025

Diego and his Dad were super professional and personable. It's the ONLY place my wife and I will take our car from now on! Bravo ACE!

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Jasper V.
1/31/2024

I have been using Ace Diagnostics for years. From OBD I, OBD II, Diesels, and everything else in between I've never had one of my vehicles fail smog with Ken. Recently brought a 1993 Toyota...

Nicole B.
8/21/2024

Needed a smog quickly after work. They took care of me and were very pleasant to deal with. I will be back!

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