Price
Call for price
Hours
Open Mon–Fri
Station type
Test & Repair
Appointments
Walk-ins welcome
Hours
- Monday
- 7:30 AM – 5:30 PM
- Tuesday
- 7:30 AM – 5:30 PM
- Wednesday
- 7:30 AM – 5:30 PM
- Thursday
- 7:30 AM – 5:30 PM
- Friday
- 7:30 AM – 5:30 PM
- Saturday
- Closed
- Sunday
- Closed
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at United Automotive Service
United Automotive Service is licensed by the Bureau of Automotive Repair as a Test & Repair smog station in Orange, so it can run the inspection and, if your car fails, diagnose and fix it in the same shop. 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?
- United Automotive Service can diagnose and repair the problem in the same shop, then retest the car.
- 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.
777 North Main Street, Orange, CA 92868
Get directions →Hours
- Monday
- 7:30 AM – 5:30 PM
- Tuesday
- 7:30 AM – 5:30 PM
- Wednesday
- 7:30 AM – 5:30 PM
- Thursday
- 7:30 AM – 5:30 PM
- Friday
- 7:30 AM – 5:30 PM
- Saturday
- Closed
- Sunday
- Closed
Also listed on
Other stations near United Automotive Service
Dinh Smog Check Station
1135 W Barkley Ave F
Toma Smog
822 W Angus Ave #c
Mazda Of Orange
1360 W Katella Avenue
Orange High Test Only
896 N Cypress St
Kings Auto Clinic
850 North Lemon Street
Nearby cities in Orange County
Questions about United Automotive Service
United Automotive Service is open Monday 7:30 AM to 5:30 PM; Tuesday 7:30 AM to 5:30 PM; Wednesday 7:30 AM to 5:30 PM; Thursday 7:30 AM to 5:30 PM; Friday 7:30 AM to 5:30 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
United Automotive Service accepts Cash, Credit Card.
United Automotive Service has held a BAR smog license since 1998. You can verify the license status at bar.ca.gov.
United Automotive Service 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 (714) 633-9026 for a quote.
United Automotive Service does not take online bookings here, but walk-ins are welcome. Call (714) 633-9026 to check the wait.
Staff at United Automotive Service speak English.
The closest alternatives in Orange are Dinh Smog Check Station (0.1 mi) and Toma Smog (0.3 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.
Own this shop? Add photos
BAR field office: Santa Ana • Licensed since 1998