Tune Up in St. Peters, MO

ASE-Certified Tune-Up Service Built Around Your Vehicle’s Maintenance Schedule

Your automobile’s manufacturer worked out a detailed schedule of all the services your car needs to stay safe, reliable, and efficient. Our ASE-certified technicians at Christian Brothers Automotive Weldon Spring help St. Peters drivers stay on track with that schedule, using manufacturer-quality equipment and a transparent process that puts you in control of every decision. With more than 40 years of automotive maintenance experience behind the Christian Brothers Automotive brand, we know what it takes to keep a vehicle running the way it should.

Staying current with Tune-Ups isn’t just about today’s performance. It’s about protecting your investment over the long term and avoiding the larger repair bills that deferred maintenance can produce.

Ready to schedule a car tune up in St. Peters? Call us at (636) 630-9401 or book your appointment online. Our team can walk you through every finding before any work begins.

Why St. Peters Drivers Trust Christian Brothers Automotive Weldon Spring

Every visit starts with a free Digital Vehicle Inspection. Our technicians photograph and document their findings, then send that report directly to you before recommending any service. Nothing moves forward without your approval. That process is a key part of what sets a trip to our shop apart.

A few other things that distinguish how we operate:

  • Nice difference.® Warranty: All work is backed by our 3-year/36,000-mile warranty, honored at any Christian Brothers Automotive location in the country.
  • J.D. Power Recognition: We’re ranked #1 in Customer Satisfaction Among Aftermarket Full-Service Maintenance and Repair Providers for the sixth consecutive time. (For J.D. Power 2025 award information, visit jdpower.com/awards.)
  • AAA Approved: Christian Brothers Automotive Weldon Spring is an AAA Approved Auto Repair facility.
  • On-Site Owners: Owner-operators Doug and Calie Kircher are on-site, so you have a consistent, accountable point of contact.

Schedule Your Tune-Up in St. Peters

Booking is simple: call us at (636) 630-9401 or schedule online at your convenience. For qualifying visits, our free shuttle service means you can drop off your vehicle and carry on with your day. When your car is ready, you’ll know what was done and why. That’s the standard we hold ourselves to at Christian Brothers Automotive Weldon Spring.

How Our Tune-Up Process Works

We follow a clear five-step process so you know what to expect. Schedule your appointment online or by phone. When you arrive, our technicians perform diagnostics and a thorough inspection of your vehicle. Those findings are compiled into your Digital Vehicle Inspection report, complete with photos, and sent directly to you along with an estimate. You review the recommendations and approve only the work you want done. Then we get to work or schedule the service at a time that fits your calendar. No surprises, no work without your sign-off.

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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.

Call For a Quote



Your Day Doesn’t Have to Stop

Our free shuttle service is available for qualifying visits, so dropping off your car doesn’t mean losing hours from your schedule. If your day starts before we open, night drop service is also available so you can leave your vehicle after hours, and we can get it into the shop first thing.

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What a Tune-Up Includes

Our Tune-Ups cover a complete analysis of the components that keep your vehicle running: spark plugs, brakes, oil and other fluids, lights, tires, filters, and emissions. Each area is inspected by an ASE-certified technician, and findings are presented to you before any replacements or repairs are performed. You decide what gets done.

Not sure if your car is due? Common signs include reduced fuel economy, rough idling, sluggish acceleration, difficulty starting, or an illuminated check engine light. Catching these early, at the right intervals on your manufacturer’s maintenance schedule, can help extend the life of your vehicle and help you avoid more costly repairs down the road.

A tune-up sits at the core of any preventive maintenance plan. Rather than waiting for something to fail, scheduled maintenance is designed to catch wear on components like spark plugs and filters before they create larger problems. Following the schedule your manufacturer built for your specific vehicle is the most reliable way to stay ahead of those issues.

Vehicles that receive regular maintenance tend to hold onto fuel efficiency and consistent performance longer than those that don’t. Driveability problems, such as hesitation, stalling, or unusual engine noise, are common reasons drivers come in outside of a scheduled interval. When that happens, our technicians can assess which components are involved and explain what’s needed in plain language.

The right tune-up interval varies by make, model, and driving conditions. Your owner’s manual is a good starting point. One of our technicians can help you confirm what schedule makes sense for your vehicle.

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Your Local Christian Brothers Amenities

After Hours Key Drop Off
Courtesy Inspections
Certified Technicians
Free Refreshments
Free Shuttle Service
Free Wifi
Special Financing

FAQs

  • Q. "What is the difference between a tune-up and scheduled maintenance services?"
    For the most part, a tune-up should be a part of your regular scheduled maintenance services. Scheduled maintenance is aimed at taking preventative measures including all services in a tune-up.
  • Q. "What is included in a tune-up?"
    Our tune-ups include a complete analysis of the components that help your car run including Spark plugs, Brakes, Oil and other fluids, Lights, Tires, Filters, and Emissions.
  • Q. "Why are tune-ups important?"
    Tune-ups help prevent much larger repairs in the long run, in addition to keeping your vehicle's performance strong.
  • Q. "What is a Digital Vehicle Inspection?"
    With a complimentary Digital Vehicle Inspection (DVI) on every visit, you’ll see firsthand photos of your vehicle from under the hood. We’ll let you know if everything is functioning properly or if there are any areas of concern. You can even approve or deny our service recommendations, all straight from your smartphone, or you can, of course, give us a call and we’ll explain our findings in further detail.
  • 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.
  • 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.

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

  • "I liked the customer service and going above and beyond to make sure I was comfortable while waiting in the store for my vehicle work to be done, specifically being offered a nice hot coffee with creamer."

    - J.L.

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