Auto RepairCreating a Completely Different ExperienceFor You & Your Vehicle
San Marcos, TX
Honest estimates. Quality workmanship. Backed by a warranty on parts and labor.
Common reasons to bring your vehicle in
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- Real photos, not just claims — see the actual worn part, leak, or damage our technicians found on your vehicle.
- Video walkthroughs — some findings include short video clips so you can watch the issue in action, not just read about it.
- Parts diagrams included — visual references help you understand where a component sits and what it actually does.
- Fully itemized estimates — every job breaks down parts, labor, and fees separately instead of one vague total.
- No guesswork pricing — know exactly what you're paying for before you approve any repair.
- Digital, on-demand access — your inspection report is sent straight to your phone or email, available anytime.
- Built for informed decisions — central Texas drivers can approve, decline, or ask questions about each recommended service individually.
- Consistent process every visit — every vehicle that comes through our San Marcos, Texas shop gets the same transparent DVI process.
- Trust through visibility — you're seeing evidence, not just taking a technician's word for it.
- A better standard for Central Texas drivers — Riley Auto Care & Transmissions uses Tekmetric to make transparency the default, not the exception.
Riley Auto Care & Transmissions — full-service auto repair in San Marcos, TX, serving Kyle, Buda, Wimberley, and New Braunfels.
Book an Appointmentto give San Marcos, Texas drivers a more transparent auto repair experience. Every visit includes a digital vehicle inspection (DVI) with real photos, videos, and parts diagrams, so you can actually see what our technicians found instead of just taking our word for it. Rather than a vague verbal quote, central Texas drivers receive a fully itemized estimate breaking down parts, labor, and fees for each individual job. This means you know exactly what you're paying for and why before any work begins.
For drivers across San Marcos and the surrounding Central Texas area, this kind of visibility builds real trust — turning routine auto repair and transmission service into an informed decision, not a guessing game. We believe you deserve to understand your vehicle's condition and your repair options before committing to anything. That's not just good service — it's the standard we hold ourselves to every single day.
Auto repair in Hays County — Riley Auto Care & Transmissions, 1334 TX-123, San Marcos, TX.
Book an AppointmentCommon Questions
Auto Repair Questions & Answers
How do I know when my car needs auto repair?
Common warning signs include the check engine light, unusual noises (grinding, squealing, knocking), rough idling, pulling to one side while driving, fluid leaks under the vehicle, or a noticeable drop in fuel economy. If you notice any of these, it's time to bring your vehicle to a trusted mechanic. Ignoring early warning signs almost always leads to more expensive repairs down the road. At Riley Auto Care & Transmissions, our technicians perform a thorough inspection and explain exactly what your car needs — no surprises, no pressure.
What types of auto repair services do you offer in San Marcos, TX?
We offer a full range of automotive care services including brake repair and replacement, engine diagnostics and repair, transmission service and rebuilds, A/C and heating repair, electrical diagnostics, oil changes, fluid services, battery replacement, and preventative maintenance. Whether you drive a domestic or import vehicle, our experienced mechanics have the tools and training to handle it. We service all major makes and models — from Ford and Chevrolet to Toyota, Honda, BMW, and more.
How long has Riley Auto Care been in business?
Riley Auto Care & Transmissions has been serving San Marcos and Central Texas since 1978 — over 45 years of family-owned automotive care. Founded by Bob Riley, the shop has built its reputation on honest estimates, quality workmanship, and treating every customer like a neighbor. That kind of long-standing trust is rare, and it's something we're proud of every single day.
Do you offer a warranty on auto repair work?
Yes. We stand behind our work with a warranty on parts and labor. If something isn't right after a repair, bring it back and we'll make it right. We believe a good mechanic should be accountable for the work they do, and that's exactly the standard we hold ourselves to at Riley Auto Care & Transmissions.
What areas do you serve near San Marcos?
We primarily serve San Marcos, TX and the surrounding Hays County area — including Kyle, Buda, Wimberley, New Braunfels, and the greater Austin metro. If you're looking for a reliable mechanic in Central Texas, Riley Auto Care & Transmissions is conveniently located at 1334 TX-123 in San Marcos, just off the highway and easy to reach from I-35.
Can I schedule an auto repair appointment online?
Absolutely. You can book an appointment online 24/7 through our booking system — just click the "Book Now" button on this page. You can also call or text us at (512) 353-5186 during business hours. We'll confirm your appointment and let you know what to expect before you arrive.
About our shop
Trusted Auto Repair & Automotive Care in San Marcos, TX
When your vehicle needs attention, you want a mechanic you can trust — someone who will give you a straight answer, a fair price, and quality work that lasts. That's exactly what Riley Auto Care & Transmissions has delivered to drivers in San Marcos, Texas for over four decades. Since 1978, our family-owned auto repair shop has been the go-to destination for automotive care throughout Hays County and Central Texas.
Our team of experienced mechanics is trained to handle everything from routine maintenance to complex engine and transmission repairs. We use modern diagnostic equipment to accurately identify problems the first time, saving you time and money. Whether your check engine light just came on, your brakes are grinding, your A/C stopped blowing cold, or your transmission is slipping — we have the expertise to diagnose it correctly and fix it right.
Auto repair is never a one-size-fits-all service. Every vehicle is different, and every driver's situation is unique. That's why we take the time to listen, inspect, and explain. Before any work begins, we walk you through what we found and what it will cost. No hidden fees. No unnecessary upsells. Just honest automotive care from people who genuinely care about your safety on the road.
We service all makes and models — domestic trucks and SUVs, Japanese imports, European vehicles, and everything in between. Our shop is ATRA-certified for transmission work, which means we meet the highest industry standards for transmission diagnosis, repair, and rebuilding. Whether you need a simple fluid flush or a complete transmission rebuild, you're in capable hands.
Car care doesn't stop at repairs. We also offer a full menu of preventative maintenance services designed to keep your vehicle running at its best and help you avoid costly breakdowns. Regular oil changes, brake inspections, battery checks, fluid top-offs, and tune-ups are the foundation of good automotive care — and our mechanics make it easy and affordable to stay on schedule.
Drivers from San Marcos, Kyle, Buda, Wimberley, New Braunfels, and across the Austin metro trust Riley Auto Care & Transmissions because we've earned that trust — one honest repair at a time. When you bring your vehicle to our shop, you're not just a ticket number. You're a neighbor, and we treat you that way.
Ready to experience the difference a truly trustworthy mechanic makes? Schedule your appointment online or call us at (512) 353-5186. We're open Monday through Friday, 8:00 AM to 5:30 PM, and we'd love to help you get back on the road with confidence.
Flexible Payment Options
Auto Repair Financing Available
We know unexpected car repairs can strain your budget. That's why Riley Auto Care & Transmissions offers flexible financing options through Synchrony Car Care and Kornerstone Credit — so you can get the repairs you need today and pay over time.
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Ready to Book Your Repair?
Schedule online anytime or give us a call during business hours. We'll get you in fast and back on the road.
Book Now(512) 353-5186Location
Find Us in San Marcos, TX
1334 TX-123, San Marcos, TX 78666 — easy access from I-35, serving all of Central Texas