1. Schedule Your Appointment
Whether scheduling online or over the phone be sure and let us know what you're experiencing so we can provide fast and accurate service advice.
2. Diagnostics and Inspections
Drop off your vehicle and the shop will get to work with inspections and diagnostics using the same equipment as the manufacturers to determine issues and next steps.
3. Digital Vehicle Inspection Report and Estimate
Following the diagnosis we will text you a digital vehicle inspection report, containing pictures and videos of our findings and recommendations.
4. Review and Approval
A service advisor will reach out to walk you through the findings and recommendations to determine how you would like to proceed, or you can approve work directly in your DVI.
5. Work Performed or Scheduled
Most work can be completed immediately, or scheduled based on parts and customer availability.
Why St. Louis County Drivers Choose Christian Brothers Automotive Valley Park
Our owner/operator, Doug Kovac, is on-site at the Valley Park location. There’s a named, accountable person behind every service we provide, not a rotating cast of managers.
What you can expect when you bring your vehicle to us:
- Nice Difference Warranty: All qualified repairs are backed by our 3-year/36,000-mile warranty, whichever occurs last.
- Digital Vehicle Inspection (DVI) report: You see the details of what testing found before approving any repair.
- Complimentary shuttle service: You don’t have to wait at the shop while we work.
- Flexible financing: Buy now, pay later options through Klarna, Affirm, and Sunbit.
- Discount for those who serve: First responders, veterans, and teachers receive 10% off (up to $100) at our Valley Park location.
Christian Brothers Automotive Valley Park is ranked #1 in Customer Satisfaction Among Aftermarket Full-Service Maintenance and Repair Providers in the J.D. Power 2025 Aftermarket Service Index (ASI) Study, the sixth consecutive time we’ve earned that recognition. For J.D. Power 2025 award information, visit jdpower.com/awards.
When to Schedule Car Diagnostic Testing
A check engine light or service engine soon light is the most common reason drivers schedule vehicle diagnostic testing in St. Louis County, but a warning light isn’t the only signal worth taking seriously.
Drivability changes such as rough idling, hesitation when accelerating, reduced power, or higher-than-usual fuel consumption all warrant testing even when no warning light has appeared. Modern vehicles monitor dozens of interconnected systems, and a fault in one area can affect others the longer it goes unaddressed. Testing before purchasing a used vehicle is also worth considering, since a visual inspection won’t reveal faults stored in the vehicle’s onboard computer.
Schedule Car Diagnostic Testing at Our Valley Park Shop
We serve Valley Park, Des Peres, Manchester, Twin Oaks, Keyes Summit, and the surrounding St. Louis County area. When you’re ready to find out what’s going on with your vehicle, we’re here without pressure and without surprises. You approve every repair before any work begins.
Book your appointment online or call us at (636) 341-4758 to schedule car diagnostic testing at Christian Brothers Automotive Valley Park.
What Car Diagnostic Testing Covers
Modern vehicles rely on an On-Board Diagnostics (OBD) system that continuously monitors engine performance, emissions output, transmission operation, sensor function, and more. When something falls outside normal parameters, the system generates a diagnostic trouble code pointing toward the affected system. Detailed testing then confirms the specific cause within that system.
Our certified technicians evaluate onboard computer data alongside their own hands-on checks to confirm the root cause of any fault codes. That two-step process is what separates genuine testing from a simple code pull.
At the end of testing, you receive a Digital Vehicle Inspection (DVI) report documenting what was found and outlining any recommended repairs in language you can actually follow. If you have questions, we answer them. You leave with a complete record of the findings and full control over what comes next.
Your Local Christian Brothers Amenities
FAQs
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Q. "What does a vehicle test do?"
Today’s vehicles are more advanced than ever. They’re essentially computers on wheels, with complex systems controlling everything from performance and safety to comfort and efficiency. When a warning light comes on or something feels off, our testing process takes a deep dive into these systems to identify the real issue, not just a surface-level code. This thorough approach goes far beyond a quick parts-store scan and helps ensure repairs are accurate, effective, and long-lasting.
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Q. "How long does a vehicle test take?"We believe in doing things right, not rushing through them. While some tests can be completed quickly, others take more time, depending on the concern. Our priority is accuracy, so you can feel confident in the results and the next steps. We’ll always keep you informed along the way, giving you peace of mind on the road to the people and places that matter most.
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Q. "When should I get a vehicle test?"
Vehicle testing is essential anytime a warning light comes on, your vehicle feels different, or during routine maintenance visits. Regular testing helps catch small issues before they become bigger problems, keeping your car safe, reliable, and running at its best.
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Q. "Do you offer a shuttle service?"Yes! we understand you have a full schedule. Whether you need to get to work, school, or need to attend to other responsibilities, we can take you where you need to go. Click here to learn more.
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Q. "Do you offer a warranty?"As part of our Nice difference.® commitment to providing our customers the best auto service experience possible, we also offer a 3-year/36,000-mile warranty on all the work that we do. We offer this warranty at every Christian Brothers Automotive nationwide, and it will be honored at any location, regardless of which branch did the initial work.
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Q. "Can you provide service under my extended warranty?"Yes. At Christian Brothers Automotive, we work with all major extended warranty providers to make needed repairs for our customers. If you have an extended warranty, you can discuss your carrier with our team when scheduling an appointment and confirm that the work will be covered. You can find a partial list of the extended warranty companies we work with here.
Have more Questions?
Our friendly auto service experts have the answers.
Call your local Christian Brothers Automotive car shop today
Hear What Our Customers Had to Say About Us
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"The staff is always incredibly helpful & kind. I am always able to get an appointment quickly & have a quick pick-up as well. I love that they call to explain the quote estimate in more detail, & call to explain any changes to the quote & c"
- Emily