Price
Call for price
Hours
Open 7 days a week
Station type
Test Only
Appointments
Walk-ins welcome
Hours
- Monday
- 9 AM – 5:30 PM
- Tuesday
- 9 AM – 2:30 PM
- Wednesday
- 9 AM – 1:30 PM
- Thursday
- 9 AM – 1:30 PM
- Friday
- 9 AM – 2:30 PM
- Saturday
- 9 AM – 5:30 PM
- Sunday
- 9 AM – 5:30 PM
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at Mathilda Smog Check
Mathilda Smog Check is licensed by the Bureau of Automotive Repair as a Test Only smog station in Sunnyvale. It runs the inspection and issues the certificate but does no repairs. It is STAR certified, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
Walk-ins are welcome. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.
What to bring
Your registration or DMV renewal notice
It says whether the car needs a STAR station.
The car, with the check engine light off
On a 2000-or-newer car, a lit check engine light fails the test on its own.
A way to pay
The $8.25 state certificate is paid on top of the test when the car passes, unless the station's price or coupon includes it.
What if I fail?
- Mathilda Smog Check doesn't do repairs, so the car goes to a repair shop and comes back for the retest.
- Each station sets its own retest price, so ask before the first test.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
498 North Mathilda Avenue, Sunnyvale, CA 94085
Get directions →Hours
- Monday
- 9 AM – 5:30 PM
- Tuesday
- 9 AM – 2:30 PM
- Wednesday
- 9 AM – 1:30 PM
- Thursday
- 9 AM – 1:30 PM
- Friday
- 9 AM – 2:30 PM
- Saturday
- 9 AM – 5:30 PM
- Sunday
- 9 AM – 5:30 PM
Other stations near Mathilda Smog Check
A1 Performance Auto Repair
771 N Mathilda Ave Unit F
Sunnyvale Discount Smog
848 W. Evelyn Ave Unit D
Hendy's Auto Services
111 North Sunnyvale Ave
Le S Auto Repair
912 West Evelyn Avenue
Fair Oaks Auto Care
801 N Fair Oaks Avenue
Nearby cities in Santa Clara County
Questions about Mathilda Smog Check
Mathilda Smog Check is open Monday 9 AM to 5:30 PM; Tuesday 9 AM to 2:30 PM; Wednesday 9 AM to 1:30 PM; Thursday 9 AM to 1:30 PM; Friday 9 AM to 2:30 PM; Saturday 9 AM to 5:30 PM; Sunday 9 AM to 5:30 PM. Hours can change on holidays, so call ahead if you are cutting it close.
Mathilda Smog Check accepts Cash, Credit Card.
Mathilda Smog Check has held a BAR smog license since 2025. You can verify the license status at bar.ca.gov.
Mathilda Smog Check has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (650) 444-1812 for a quote.
Mathilda Smog Check does not take online bookings here, but walk-ins are welcome. Call (650) 444-1812 to check the wait.
Staff at Mathilda Smog Check speak English.
The closest alternatives in Sunnyvale are A1 Performance Auto Repair (0.4 mi) and Sunnyvale Discount Smog (0.7 mi). Both are listed further up this page with their ratings and hours.
How we get this data: BAR licenses and STAR status, Google hours and ratings, coupons published by the station.
Verify this station’s license and STAR standing at bar.ca.gov.
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BAR field office: San Jose • Licensed since 2025