At Fitz’z, it’s not about the cars –
It’s about the people who drive them!
Monday to Friday
From 8:00am – 4:30pm
At Fitz’z, it’s not about the cars –
It’s about the people who drive them!
Monday to Friday
From 8:00am – 4:30pm
When your dashboard lights up with a warning you don’t recognize or your vehicle starts behaving in ways you can’t explain, the anxiety is real. You need answers fast—and more importantly, you need answers you can trust. That’s exactly what we deliver at Fitz’z Automotive Service, your dedicated automotive diagnostic center in Lemay, MO. For over 30 years, our family-owned shop has been the go-to destination for drivers across South County and the greater St. Louis area who refuse to settle for guesswork when it comes to their vehicles.
Located right here in the heart of Lemay, just minutes from the Mississippi River and the familiar neighborhoods along Lemay Ferry Road, we’ve built our reputation on honest assessments, advanced technology, and old-fashioned accountability. Whether you’re commuting down I-55 to downtown St. Louis, running errands along Telegraph Road, or heading out to Jefferson Barracks Park for the weekend, we make sure your vehicle is safe, reliable, and performing at its best. Our automotive diagnostic center combines cutting-edge computerized scanning equipment with decades of hands-on expertise to pinpoint exactly what’s going on under your hood—no unnecessary repairs, no inflated estimates, and no surprises.
We invite you to experience the Fitz’z difference. A variety of diagnostic and repair services are available to meet your needs, so please don’t hesitate to contact us for details on how we can help with your specific situation.
Today’s vehicles are rolling computers. The average modern car contains dozens of electronic control units managing everything from fuel injection timing to adaptive cruise control. When something goes wrong, a simple visual inspection won’t cut it. At Fitz’z Automotive Service, we invest in factory-grade diagnostic scanners and OEM-level software that communicate directly with your vehicle’s onboard systems. This allows us to read fault codes, monitor live sensor data, and perform bi-directional testing that reveals the true root cause of a problem—not just the symptom. Professional diagnostic centers like ours adhere to rigorous automotive repair documentation standards to ensure accurate record-keeping and full transparency during every step of the diagnostic and repair process.
One of the biggest advantages of choosing Fitz’z is our ability to work on virtually every make and model on the road. From Chevy Silverados and Ford F-150s to Honda Accords, Toyota Camrys, and Cadillac CT4, our technicians have the training, tooling, and experience to diagnose them all. We also specialize in classic cars that require a different diagnostic approach—blending traditional mechanical knowledge with modern testing methods. Whether your vehicle rolled off the assembly line in 1985 or 2025, we speak its language.
Why pay dealership prices when you can get the same—or better—diagnostic accuracy right here in Lemay? Since 1988, Fitz’z Automotive Service has offered St. Louis drivers a smarter choice: expert-level care without the corporate markup. Our technicians receive ongoing training and use the same diagnostic platforms found at franchise dealerships, but we pair that technology with personalized service and straightforward communication that big dealers simply can’t match.
That glowing check engine light could mean anything from a loose gas cap to a failing catalytic converter. At Fitz’z, we go far beyond pulling a simple code. We perform comprehensive diagnostic testing that includes analyzing freeze frame data, running component-specific tests, and cross-referencing technical service bulletins to give you a complete picture. You’ll know exactly what’s wrong, what it’ll cost to fix, and how urgent the repair truly is.
Today’s vehicles contain dozens of electronic control modules communicating across complex data networks. When your check engine light illuminates, we connect to these systems using advanced diagnostic platforms to read fault codes, review live data streams, and identify the precise component or circuit causing the issue.
A malfunctioning instrument cluster isn’t just annoying—it’s dangerous. If your speedometer, tachometer, fuel gauge, or temperature gauge is giving inaccurate readings or has gone completely dark, our diagnostic team can determine whether the issue lies in the cluster itself, the sending units, or the vehicle’s communication network. We offer instrument cluster repair and reprogramming services that save you hundreds compared to full replacement.
We believe that informed customers make the best decisions about their vehicles. That’s why every diagnostic service at Fitz’z includes our Transparent Digital Vehicle Inspection. As our technicians work through the diagnostic process, findings are documented digitally and sent directly to your smartphone or email in real time. You’re never left in the dark, wondering what’s happening with your car.
Our digital inspections include high-resolution photos and videos of problem areas, annotated with clear tech notes that explain what you’re looking at and why it matters. No more trying to decipher confusing jargon over the phone. You see exactly what our technicians see, giving you the confidence to approve—or decline—any recommended work.
Not every issue uncovered during a diagnostic scan needs immediate attention. Our team categorizes findings into three tiers: safety-critical items that need prompt repair, items that should be monitored and addressed soon, and maintenance recommendations for future planning. This honest approach helps Lemay families and individuals budget for vehicle care without feeling pressured into unnecessary spending.
Steering Column and Front Suspension Troubleshooting
St. Louis roads can be punishing—especially during winter when potholes seem to multiply overnight along Lemay Ferry Road and South Broadway. If you’re experiencing unusual steering play, clunking noises over bumps, or uneven tire wear, our diagnostic team will perform a thorough inspection of your steering column, tie rods, ball joints, control arms, and strut assemblies to identify the culprit and restore safe handling.
Automotive AC and Climate Control Diagnostics
Missouri summers are no joke. When temperatures climb into the 90s and humidity makes it feel even worse, a failing AC system turns your daily commute into a miserable experience. We use refrigerant identifiers, electronic leak detectors, and system performance testing to diagnose climate control issues accurately—whether it’s a simple refrigerant recharge, a compressor failure, or a blend door actuator malfunction.
Vehicle Theft Recovery and Locksmith Diagnostic Services
Modern anti-theft systems use transponder keys, immobilizer modules, and complex security protocols. If your vehicle won’t start after a theft recovery, or if you’re locked out due to a key fob malfunction, our diagnostic tools can interface with your vehicle’s security system to identify and resolve the issue. We also assist with key programming and immobilizer resets for a wide range of makes and models.
Fitz’z Automotive Service isn’t a faceless chain—we’re your neighbors. We’ve watched Lemay grow and change over three decades, and we’ve been here through it all, serving generations of local families. Our commitment to this community goes beyond fixing cars. It’s about building relationships grounded in trust, delivering work we’re proud to stand behind, and treating every customer the way we’d want to be treated.
Our Lemay location offers easy access for drivers throughout South County, Affton, Oakville, Mehlville, and the greater St. Louis metro area. Whether you’re dropping off your vehicle on the way to work downtown or stopping in during your lunch break, our convenient location and efficient diagnostic process make vehicle care fit seamlessly into your schedule.
In addition to serving individual vehicle owners, Fitz’z provides diagnostic services for small business fleets and commercial vehicles throughout the St. Louis region. Minimizing downtime is critical for your bottom line, and our advanced diagnostic capabilities help identify issues quickly so your vehicles spend less time in the shop and more time on the road generating revenue.
Don’t Just Take Our Word For It!
While our shop calls Lemay home, we proudly serve drivers from Mehlville, Oakville, Affton, Concord, South City St. Louis, and communities throughout South St. Louis County. Customers travel from across the metro area because they trust our expertise and value our honest approach.
Located on South Broadway, our shop is easily accessible from Jefferson Barracks, Lemay Ferry Road, and Interstate 55. Whether you’re a veteran visiting the VA or a local resident heading to Hancock Place, we’re right in the neighborhood and ready to help.
A standard diagnostic scan typically takes between 30 minutes and two hours, depending on the complexity of the issue. Simple code retrievals are quick, but tracing the underlying cause of an intermittent problem may require extended testing, road testing, or component-level analysis. At Fitz’z, we take the time to get it right the first time rather than rushing to a conclusion.
A steady check engine light usually indicates a non-emergency condition that should be diagnosed soon. However, a flashing check engine light signals an active misfire or serious issue that can cause catalytic converter damage and other expensive problems. If your light is flashing, we recommend pulling over safely and calling us immediately. Continuing to drive risks turning a manageable repair into a major expense.
Independent shops like Fitz’z Automotive Service offer several compelling advantages: lower labor rates, personalized attention, the ability to work on all makes and models under one roof, and a customer-first approach that isn’t driven by manufacturer sales quotas. We use the same diagnostic technology as dealerships, and our technicians have the training and experience to match. The biggest difference? We treat you like a person, not an invoice number.
Ready to get answers about that warning light or performance concern? Scheduling your appointment is easy. Give us a call or Contact Us online. We’ll schedule your appointment promptly and have our diagnostic team ready for your arrival.
Bring your vehicle in, share your concerns with our friendly service advisors, and let us take it from there. We’ll provide a thorough diagnostic evaluation and deliver our findings through our transparent digital inspection system.