Diaz Smog

Diaz Smog is a dedicated emissions station at 1347 N Mt Vernon Ave, Colton, CA 92324. It offers smog checks and on-site DMV services including registration renewal. The shop tests most passenger cars using OBD‑II and aims for quick turnarounds. Hours are Monday through Saturday 8:30 am to 6 pm, with Sunday closed. Customers praise fast, friendly service, a clean, comfortable waiting area, and on‑site certificate submission. Walk‑ins are common and pricing is generally reasonable. It’s a local, family‑run shop with dependable staff.

Smog inspection station

Test Only

Colton, CA

Contact

Address 1347 N Mt Vernon Ave, Colton, CA 92324, United States
Hours
Monday 8:30 am–6 pm
Tuesday 8:30 am–6 pm
Wednesday 8:30 am–6 pm
Thursday 8:30 am–6 pm
Friday 8:30 am–6 pm
Saturday 8:30 am–4 pm
Sunday Closed

Services

Station Type Test Only
Test Types
OBD-II
Vehicles Served
Passenger Cars
Languages English

Practical Information

Appointments Walk-ins Welcome
Typical Wait 15-30 minutes
Pricing Contact for pricing

Making the Most of Your Visit to Diaz Smog

Choosing the right smog check station in Colton, California can save you time, reduce stress, and help ensure your vehicle passes its inspection on the first try. Diaz Smog is one of the licensed smog check locations in the area, and preparing properly before your visit can make the process smoother.

Understanding California Smog Check Requirements

Smog Check rules in California vary by vehicle type, registration ZIP code, and model year. Since requirements can differ even within Colton, confirm what applies to you before heading to Diaz Smog. Our California Smog Check guide outlines current rules, exemptions, and testing intervals.

Before Your Smog Check

To help make your smog check quick and successful, consider preparing the following:

  • Confirm your registration address requires testing.
  • Ensure your check engine light is off and no recent codes have been cleared.
  • Warm up your vehicle by driving 10 to 15 minutes before testing.
  • Bring your registration or renewal notice and a valid photo ID.

Why Reviews Matter

Customer experiences can vary, so reading feedback from other drivers can help you understand what to expect. Diaz Smog currently has 100 reviews with a 4.7 out of 5 rating, which can provide insights into service quality, wait times, and professionalism.

FAQ

Common questions

Have a question not covered here? Contact us and we will respond within one business day.

Where is Diaz Smog located?

Diaz Smog is located at 1347 N Mt Vernon Ave, Colton, CA 92324, United States in Colton, California.

What services does Diaz Smog offer?

Diaz Smog is categorized as a Smog inspection station and operates as a Test Only station offering OBD-II testing for passenger cars.

Does Diaz Smog provide Smog Check?

Yes, Diaz Smog provides Smog Check in Colton, CA. Available test types include OBD-II.

What are the hours for Diaz Smog?

Diaz Smog is open: Monday 8:30 am–6 pm, Tuesday 8:30 am–6 pm, Wednesday 8:30 am–6 pm, Thursday 8:30 am–6 pm, Friday 8:30 am–6 pm, Saturday 8:30 am–4 pm, Sunday Closed.

How can I contact Diaz Smog?

You can reach Diaz Smog by phone at +1 909-514-0905, or by visiting 1347 N Mt Vernon Ave, Colton, CA 92324, United States.

Do I need an appointment at Diaz Smog?

Diaz Smog accepts walk-ins with no appointment necessary. Contact them directly to confirm availability.

How long does Smog Check take at Diaz Smog?

Typical wait time at Diaz Smog is 15-30 minutes.

What do customers say about Diaz Smog?

Diaz Smog has a 4.7 out of 5 rating based on 100 reviews. Customers frequently mention fast service, friendly staff, easy process, clean facility, good communication. For Smog Check specifically, they hold a 4.7 out of 5 rating.