STAR-Certified SMOG Testing

Smog tests play an important role in keeping California’s air clean by ensuring vehicles meet the state’s strict emissions standards. As a STAR-certified shop, Auto Express provides thorough smog inspections to help drivers stay compliant with state regulations while protecting the environment. Our certified technicians use advanced equipment to measure your vehicle’s emissions output and verify that it meets all legal requirements. Most smog checks are completed within 20 to 30 minutes, offering a fast and convenient experience.

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If your vehicle fails a smog test, our team can perform the necessary diagnostics and repairs to bring it back into compliance. From replacing faulty sensors and catalytic converters to repairing leaks and tuning your engine, we’ll identify the issue and provide effective, affordable solutions to help you pass your re-test with confidence.