Csai Auto Service

Yes. Csai Auto Service is STAR certified with the California Bureau of Automotive Repair, so it can test vehicles the DMV directs to a STAR station, including gross polluters.

No. Csai Auto Service is licensed as a Test & Repair station. This station can run your smog test and, if the vehicle fails, diagnose and repair it in the same shop.

Csai Auto Service is open Monday 8 AM to 5 PM; Tuesday 8 AM to 5 PM; Wednesday 8 AM to 5 PM; Thursday 8 AM to 5 PM; Friday 8 AM to 5 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Csai Auto Service accepts walk-ins, so you can drive in without booking ahead.

Csai Auto Service accepts Cash, Credit Card.

Csai Auto Service has held a BAR smog license since 2008. You can verify the license status at bar.ca.gov.

Csai Auto 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 (951) 781-0412 for a quote.

Csai Auto Service does not take online bookings here, but walk-ins are welcome. Call (951) 781-0412 to check the wait.

Staff at Csai Auto Service speak English.

Bring the car, your registration or DMV renewal notice, and a way to pay. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.

Because Csai Auto Service is a Test & Repair station, it can diagnose and repair the problem in the same shop, then run the free retest within 30 days. If the repair bill is steep, California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternatives in Riverside are Automotive Speedy Smog (0.5 mi) and Automotive Raceway Smog (0.9 mi). Both are listed further up this page with their ratings and hours.