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Sun Auto Service Round Rock
Sun Auto Service Round Rock
16350 FM 620 Round Rock, TX 78681
Monday 8:00am - 6:00pm
Tuesday 8:00am - 6:00pm
Wednesday 8:00am - 6:00pm
Thursday 8:00am - 6:00pm
Friday 8:00am - 6:00pm
Saturday 8:00am - 5:00pm
Sunday Closed
Schedule Service

Our Services

At Sun Auto Service we offer a comprehensive range of automotive repair services from engine diagnostics and brake repairs to transmission services, all performed by our Sun and ASE-certified technicians. We stand behind our skills with national warranty on our work, ensuring you drive away with complete confidence in the safety and reliability of your vehicle.
  • A/C & Heating Repair icon A/C & Heating Repair Stay cool & comfortable Learn more
  • Alignments icon Alignments Straight steering, even wear Learn more
  • Batteries icon Batteries Fast testing & replacement Learn more
  • Brake Repair icon Brake Repair Safe, reliable stopping Learn more
  • Engine Repair icon Engine Repair Power & performance fix Learn more
  • Flat Repairs / Tire Repairs icon Flat Repairs / Tire Repairs Fix flats & leaky tires Learn more
  • Fluid Flushes icon Fluid Flushes Fresh fluids, better performance Learn more
  • Oil Change icon Oil Change Quick & clean oil service Learn more
  • Preventative Maintenance icon Preventative Maintenance Fast testing & replacement Learn more
  • Steering & Suspension Repair icon Steering & Suspension Repair Smooth, stable handling Learn more
  • Tire Replacement icon Tire Replacement Replace tires for safety Learn more
  • Tire Rotation & Balance icon Tire Rotation & Balance Extend the life of your tires Learn more
  • Vehicle Inspection icon Vehicle Inspection Checkups for peace of mind Learn more

Round Rock | 16350 FM 620

At Sun Auto Tire & Service in Round Rock, TX, we’re committed to delivering honest, expert automotive repair and maintenance you can rely on. Conveniently located at 16350 FM 620 near O’Connor Drive, our shop is just minutes from Round Rock Sports Center, Fern Bluff Park, and Lakeline Plaza. Whether you need a simple oil change or a more complex repair, our Sun or ASE-certified technicians are here to provide professional care and clear, straightforward communication.

We offer a full range of automotive services including oil changes, brake repairs, air conditioning service, tire rotations, wheel alignments, battery replacements, engine and transmission repair, suspension work, diagnostics, cooling system maintenance, and factory-scheduled maintenance. We explain every recommendation, so you feel confident in the decisions you make for your vehicle. To make your experience easier, we provide same-day service on many repairs and complimentary towing with major repairs.

Our goal is to make every visit as convenient, efficient, and stress-free as possible. Sun Tire & Auto Service is proud to serve the Round Rock community and nearby areas such as Cat Hollow, Forest Creek, and Hidden Glen. Whether you’ve just moved to the area or have lived here for years, we’re here to be your go-to source for trusted auto care.

We also carry a wide selection of tires from the industry’s leading brands, including Advanta, BFGoodrich, Bridgestone, Cooper, Falken, Firestone, FreedomHauler, Goodyear, Greenmax, Hankook, Ironman, Kelly, Kenda, Kumho, Laufenn, Michelin, MileStar, Nitto, Paragon, Pirelli, PowerKing, Samson, Starfire, Sumitomo, SuperCargo, Towmax, Toyo, Uniroyal, Westlake, Yokohama, and Zeetex. At Sun Auto Tire & Service in Round Rock, we’re here to keep your vehicle running strong with expert service and friendly support. Call us at (512) 246-1617 to schedule your next appointment.

We look forward to serving you.

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Customer Feedback in Round Rock

Read reviews from satisfied customers who trust Sun Auto Service for reliable car repair, quality auto service, and expert vehicle maintenance.

Still have questions? We’ve got answers.

We've put together the most important information on tires, vehicle maintenance, repairs, warranties, and more to help you drive with confidence.

How often should I service my vehicle?

You should service your vehicle every 5,000 to 7,500 miles or every 6 months, whichever comes first, for routine maintenance like oil changes and inspections. Always check your owner’s manual, as some vehicles and driving conditions may require more frequent attention to keep everything running smoothly and safely.

How do I know what services to perform on my vehicle and when?

Any of our friendly, neighborhood locations can help you determine the schedule that’s best for your car. In many cases, the maintenance schedule is determined by the manufacturer for optimal service life for your vehicle; this can be found in the owner’s manual.

Do I need an appointment, or can I walk in?

Appointments are recommended, but walk-ins are always welcome.

Will I get an estimate before work begins?

Absolutely. We provide clear estimates and only complete the work you approve.

Why is my check engine light on?

It could be something simple or serious. We recommend a diagnostic scan to find the cause.

How do I know when my next oil change is due?

After each oil change at Sun Auto Tire & Service, our technician will place a reminder sticker in the upper left-hand corner of your windshield. For added convenience, we can also send you a service reminder when it’s time for your next appointment. To enroll in this program, ask your Service Advisor for details.”

Is my warranty voided if I get non-dealer work done?

No. In fact, it is against the law for a manufacturer to dishonor their warranty just because the vehicle was serviced elsewhere. As long as the service is performed by capable car mechanics like the ones at your friendly neighborhood Sun Auto Tire & Service, your warranty is valid.