Price
Call for price
Hours
Open 7 days a week
Station type
Test & Repair
Appointments
Walk-ins welcome
Hours
- Monday
- 8 AM – 5 PM
- Tuesday
- 8 AM – 5 PM
- Wednesday
- 8 AM – 5 PM
- Thursday
- 8 AM – 5 PM
- Friday
- 8 AM – 5 PM
- Saturday
- 8 AM – 4 PM
- Sunday
- 8 AM – 3 PM
Good to know
Languages
English
Payment
Credit Card, Debit Card, NFC/Contactless
What to expect at Happy Car Wash & Oil Change
Happy Car Wash & Oil Change is licensed by the Bureau of Automotive Repair as a Test & Repair smog station in El Cajon, so it can run the inspection and, if your car fails, diagnose and fix it in the same shop. Its STAR certification is currently suspended in the BAR registry, so it cannot test DMV-directed vehicles until that is restored.
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?
- Happy Car Wash & Oil Change 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.
126 W Bradley Ave, El Cajon, CA 92020
Get directions →Hours
- Monday
- 8 AM – 5 PM
- Tuesday
- 8 AM – 5 PM
- Wednesday
- 8 AM – 5 PM
- Thursday
- 8 AM – 5 PM
- Friday
- 8 AM – 5 PM
- Saturday
- 8 AM – 4 PM
- Sunday
- 8 AM – 3 PM
Also listed on
Other stations near Happy Car Wash & Oil Change
Joe's Auto Repair
140 W Bradley Ave
Bradley Automotive
210 W Bradley Ave C 1
Gregs Automotive
1641 N Magnolia Ave
Roy Wheeler Auto Service Center
797 Greenfield Dr
Grease Monkey Garage
1027 Greenfield Dr Suite G
Nearby cities in San Diego County
Questions about Happy Car Wash & Oil Change
Happy Car Wash & Oil Change 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; Saturday 8 AM to 4 PM; Sunday 8 AM to 3 PM. Hours can change on holidays, so call ahead if you are cutting it close.
Happy Car Wash & Oil Change accepts Credit Card, Debit Card, NFC/Contactless.
Happy Car Wash & Oil Change has held a BAR smog license since 2016. You can verify the license status at bar.ca.gov.
Happy Car Wash & Oil Change 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 (619) 258-1234 for a quote.
Happy Car Wash & Oil Change does not take online bookings here, but walk-ins are welcome. Call (619) 258-1234 to check the wait.
Staff at Happy Car Wash & Oil Change speak English.
The closest alternatives in El Cajon are Joe's Auto Repair (0.1 mi) and Bradley Automotive (0.1 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: San Diego • Licensed since 2016