M K Smog

San Bernardino's #1 Star-Certified Smog Inspection Station serving the county for over 30 years!

Located at 898 W 40th St, San Bernardino, CA 92407, M K Smog operates as a smog check and inspection station serving San Bernardino in California. This page gathers the practical details people usually look for before visiting: where it is, how to reach it, when it opens and how customers rate it.

Auto repair in the United States is split between independent shops, dealership service departments and national chains. Independents handle most routine work (oil changes, brakes, tune-ups, check-engine diagnostics) at lower labor rates and often specialize in one make or in imports; dealers keep factory tools, software and warranty authority; chains sell speed and standard pricing on maintenance items. Most shops charge a diagnostic fee, credited toward the repair if you go ahead, and quote parts and labor separately. Certification matters: look for ASE-certified technicians and, in many states, a state repair license posted at the counter. Written estimates are required by law in most states before work begins, and you are entitled to your old parts if you ask.

Hours are published for 1 day a week. Typical hours are 8 AM–5 PM. Hours in the United States do change around federal holidays and long weekends, so a quick call before a special trip is sensible. The listed phone number is (909) 963-1333. Many businesses also reply to text messages on the same number if it is a cell phone. Its website is mksmog.com, where you may find menus, price lists or booking options.

Customers rate it 4.9 out of 5 on Google across 157 reviews, placing it among the better-regarded smog check & vehicle inspection in San Bernardino.

San Bernardino is in California, on the West Coast, where the climate ranges from foggy coast to hot inland valleys, wildfire season can affect air quality in late summer, and traffic is the main thing to plan around. Traffic in San Bernardino peaks on weekday mornings and afternoons, so allow extra time then. Addresses read from the street number up to the city, state abbreviation and five-digit ZIP code; the map link on this page shows the exact spot.

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