5349 N Northwest
Hwy / Chicago, IL 60630
Business Hours
Mon–Fri 8AM–5PM
5349 N Northwest
Hwy / Chicago, IL 60630
Mon–Fri 8AM–5PM
Failed, or worried about failing, your Illinois emissions test? C&A Auto Body diagnoses and repairs the issues that cause emissions test failures.
C&A Auto Body has served Chicago drivers near O’Hare since 1952, with new ownership since January 2026 bringing renewed focus and faster turnaround times. Read what our customers say about their experience with our emissions test work.
Emissions test prep and repair helps identify and fix the issues causing your vehicle to fail, or risk failing, its required Illinois emissions test, so you can pass with confidence.
If you’re searching for emissions test near me, it’s likely because your vehicle needs attention now, not eventually. The situations below are the most common reasons Chicago drivers reach out to us, and each one is something our technicians handle regularly, not as a rare exception.
Diagnostic scan for emissions-related issues. This is included at no extra charge as part of your visit, and our technicians never skip it, even on smaller jobs.
Explanation of what’s causing a failed or at-risk result. We handle this step carefully so your repair stays on schedule and holds up over time.
Repair of the underlying issue. This is one of the details that separates a quick fix from a lasting, professional repair.
Guidance on next steps for retesting. Getting this right is what makes sure the underlying problem is actually resolved, not just masked.
An emissions test failure can be caused by several different underlying issues. We diagnose the actual cause so you’re not guessing, or paying for repairs that won’t fix the problem.
Bring your vehicle in for a diagnostic scan. We keep you informed throughout this step so there are no surprises along the way.
We identify the cause of the emissions issue. This is where our experience with Chicago vehicles really matters.
You approve a clear estimate. Most customers are surprised at how quickly this step moves once their vehicle is with us.
Our technicians complete the repair. We double check our work at this stage before moving on to the next part of the process.
Guidance on retesting your vehicle. This step is designed to protect both the quality of the repair and your vehicle’s long-term reliability.
A short photo gallery of our diagnostic equipment and service bay. Photographed at our shop near O’Hare.
Drivers who failed an Illinois emissions test. If this sounds like your situation, we can walk you through your options during a free visit near O’Hare.
Anyone with a check engine light before an upcoming test. We work with Chicago drivers in this exact situation on a regular basis.
Drivers wanting to confirm their vehicle will pass before testing. This is one of the most common reasons local drivers reach out to our shop.
We diagnose the specific cause of emissions issues using professional equipment, rather than replacing parts by guesswork.
We proudly serve drivers throughout Chicago and nearby communities including O’Hare, Des Plaines, Rosemont, and Schaumburg. No matter which neighborhood you’re calling from, our shop is a short drive away.
Pricing depends on the underlying issue. We’ll provide a clear estimate after diagnosis.
Common causes include a faulty oxygen sensor, catalytic converter issues, or a check engine light being on. We can diagnose the exact cause.
In most cases yes. We’ll give you a clear timeline after diagnosis.
Emissions testing requirements vary by location and vehicle age. We can help you understand what’s required for your vehicle.
Our team near O’Hare in Chicago is here to help with emissions test near me.