Welcome to Sun Auto Service

Round Rock

Round Rock #4175

Louis Henna Blvd & A.W. Grimes Blvd

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791 Louis Henna Blvd
Round Rock, TX 78664
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For transmission repair call: 512-456-2414
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Store Hours



Stop In For All Your Car Maintenance
and Repair Needs

Complete automotive repair and maintenance at an affordable price is in your neighborhood! Sun Auto Service on Louis Henna Blvd in Round Rock, TX is your dealership alternative, servicing all vehicle makes and models.

Sun Auto Service offers many automotive services such as:

  • Oil changes and preventive maintenance
  • A/C repair services
  • Transmission and clutch repairs
  • Belt and hose replacements
  • Battery services
  • Diesel oil changes and repairs

We’ve provided the southwest with superior quality and comprehensive automotive care at a competitive price since 1978. Our service centers possess modern, quality equipment and tools to properly maintain and repair your vehicle. We perform only the services you authorize and guarantee all work in writing with a 2-year/24,000-mile nationwide warranty.

When the dreaded “check engine” light comes on, bring your vehicle to the Louis Henna Blvd Sun Auto Service right away. This illumination is your vehicle’s way of telling you something is out of order and needs to be addressed. Our ASE-certified technicians will perform a free engine code scan to determine what area of your vehicle needs attention. If necessary, our technicians will diagnose and repair the vehicle to get you back on the road quickly, for less than it would cost at the dealership. Our engine services include:

  • Diagnostics
  • Timing belt/chain repairs
  • Emissions repairs
  • Engine maintenance

Maintaining your vehicle is the key to ensuring major components keep working optimally. To find the best maintenance schedule for your individual vehicle, speak with one of our friendly Service Advisors at the Sun Auto Service on Louis Henna Blvd in Round Rock, TX. They’ll help guide you in how you can maintain your vehicle at each major mileage interval. We offer the following maintenance services:

  • Fluid flushes
  • Alignment
  • Battery care
  • Fuel system cleaning

Slipping, clunking, or shifting difficulties could indicate it’s time for a transmission flush. At our Louis Henna Blvd. Sun Auto Service location, we offer expert transmission repair, rebuilds, and replacement, including: 

  • Free towing with major repairs
  • Competitive pricing
  • A+ Better Business Bureau Rating

Sun Auto Service in Round Rock, TX is the only shop you need for vehicle maintenance and repairs. Our educated, professional technicians are ASE certified, which means you’ll have only the best servicing your vehicle. Some of our complete automotive repair and maintenance services include:

  • Oil changes
  • Struts & shocks
  • Fuel pump replacement
  • Air conditioning repair
  • Brake repairs