Test Only station San Mateo, San Mateo County
4 Less Smog Check
3925 South El Camino Real, San Mateo, CA 94403
4 Less Smog Check is a licensed test only smog check station at 3925 South El Camino Real in San Mateo and is STAR certified. Its state license dates to 2025, which makes it number 12 of 13 San Mateo stations by time licensed.
What this station can do
This is a test only station. It can run your smog check and certify a pass, but it cannot fix a car that fails.
Because it is STAR certified, it can test cars the DMV directed to a STAR station. What STAR means.
License check
You can look up this station's license on the state's own site. Search the number below at search.dca.ca.gov. A smog check only counts if the station is licensed on the day of your test.
- Smog station license TC 313986
- Auto repair registration ARD 313986
- License expires 2027-09-30
Own this station? Fix your hours, phone or services.
Before you go
- Bring your DMV renewal notice if you have one, and the car's registration.
- Drive at least 20 minutes first so the engine is warm.
- If the check engine light is on, you will fail. Here is why.
- Prices are set by each station. The statewide average and what drives it are in our price guide.