Mechanic Services

Auto Service Experts, Providing the Highest Quality of Vehicle Repairs & Maintenance
Auto Service Experts has been committed to providing dependable auto repair services in San Antonio for over 20 years. We aim to create lasting customer relationships based on honesty, integrity, and exceptional service. Customer service is the foundation of our top-rated San Antonio mechanic shop. We are always looking for new ways to go above and beyond and raise the bar of excellence in automotive service.
We stand behind our word and work with the best warranties in the San Antonio auto repair industry!
FREE AC CHECKS!!!! Keep your vehicle comfortable in any weather with our Auto AC & heating repair services. Whether it’s diagnosing AC freon leaks, fixing the AC compressor, or addressing heating system issues, our expert technicians have you covered.
Read moreOur certified transmission specialists provide comprehensive service, repair, and rebuilding on automatic, manual, and hybrid transmissions. From diagnosing issues with gears, clutches, or torque converters to performing differential and clutch repairs, we specialize in keeping your transmission running smoothly.
Read moreOur expert technicians have the skills and experience to handle it all, from routine maintenance like oil changes and spark plug replacements to performance upgrades and complete engine rebuilds. If you’re experiencing issues like a blown head gasket, overheating, or unusual noises, you can count on Auto Service Experts to diagnose the problem accurately and provide efficient repairs. Whether you need a minor adjustment or major overhaul, we’re dedicated to getting your engine back to peak performance.
Read moreOur ASE Certified specialists provide comprehensive brake repair services to ensure your vehicle’s safety and performance. With over 20 years of experience, we specialize in maintaining and repairing automotive braking systems, utilizing only high-quality OEM parts to guarantee lasting results. Our services include thorough brake inspections, pad replacements, and addressing any wear and tear that could compromise your vehicle’s stopping ability.
Read moreWe are San Antonio’s leading shop for hybrid electric vehicle (HEV) repair and maintenance. Our experienced HEV mechancis provide comprehensive services including hybrid transmission repair, electric motor (generator) servicing, electrical diagnostics, hybrid battery replacements, and ABS/brake system repairs. Recognizing the unique needs of HEVs, we utilize specialized equipment and parts to ensure optimal performance and longevity.
Read moreOur mechanics provide advanced car diagnostics to accurately identify and resolve issues with your vehicle’s engine, transmission, electrical system, and more. Using state-of-the-art diagnostic tools, we pinpoint problems quickly, helping you avoid unnecessary repairs and costly breakdowns.
Read moreExpert ASE-certified technicians provide comprehensive engine repair and rebuilding services, including diagnostics, cylinder machining, valve regrinding, and gasket replacements. Services come with a 3-year/36,000-mile warranty, ensuring high-quality restoration of engine performance.
Read moreOur engine performance tune-ups include inspecting and replacing spark plugs, fuel system components, and filters, as well as verifying engine timing and emissions. Common signs of needing a tune-up are reduced power, poor fuel economy, or failing an emissions test
Read moreComprehensive diagnostics and repairs for automotive electrical and electronic systems. Services address issues affecting major vehicle systems, including anti-lock brakes, transmission control modules, and AC components. Common repairs involve alternators, starters, batteries, wiring, and electronic control units. Accurate diagnostics ensure efficient resolution of electrical problems, enhancing overall vehicle performance.
Read moreOur mechanics expertly diagnose and repair vehicle charging systems, including alternator testing, battery evaluation, wiring inspection, and voltage regulation assessment. Services ensure accurate identification and resolution of charging issues to maintain optimal vehicle performance.
Read moreServices include starter motor replacement, ignition coil replacement, and addressing problems such as faulty ignition switches or transmission recognition errors. Our ASE master mechanics emphasize accurate diagnosis to avoid unnecessary part replacements, ensuring efficient and effective repairs.
Read moreOur certified ASE mechanics provide complete suspension and steering repairs to enhance vehicle control and ride comfort. Services include diagnosing and fixing issues with shocks, struts, tie rods, ball joints, and power steering systems. Proper maintenance of these components ensures safe handling and prolongs vehicle lifespan.
Read moreComprehensive exhaust and emissions system maintenance to enhance vehicle performance, fuel efficiency, and safety. Regular services, recommended every 6 months or 6,000 miles, include exhaust manifold repairs, oxygen sensor replacements, and addressing rust or corrosion issues. Proper maintenance prevents harmful emissions from entering the cabin and ensures environmental compliance.
Read moreSpecialized diesel engine services, including diagnostics, repairs, and performance enhancements. We handle various diesel components such as cam sensors, fuel filters, injectors, turbochargers, and more. Regular maintenance not only boosts fuel efficiency but also reduces emissions. Our team of mechanics are experienced with Chevrolet Duramax, Dodge Cummins, and Ford Powerstroke diesel engines.
Read moreComprehensive maintenance and repair services for commercial fleets aimed at minimizing vehicle downtime and ensure optimal performance. Our ASE-certified mechanics specialize in servicing light and medium-duty trucks and vans, providing same-day service, nationwide warranty coverage, and utilizing state-of-the-art equipment. Our shop is an authorized repair facility for ARI Fleet Management, Element Fleet Management, and Enterprise Fleet Management. Services include diesel engine repair, transmission repair and rebuilding, HVAC system repair, brakes, suspension and steering, and more. We also offer special pricing for fleet repairs, complimentary courtesy rides, and financing options.
Read moreOur Automotive Garage, Equipment, and Parts
At Auto Service Experts, we take pride in everything we do—from customer service to the upkeep of our shop. Our garage is equipped with cutting-edge diagnostic tools and repair technology, including equipment from Snap-On Tools and other leading industry brands. This ensures accurate diagnostics, faster repairs, and the best performance from our skilled technicians. We also maintain a clean, organized workspace and keep essential parts, tools, and components in stock, allowing us to complete repairs efficiently without compromising on quality.
“To be a leader, you must first have a servant mentality.”
We are committed to performing every auto repair correctly the first time, ensuring lasting satisfaction for you, the driver. We never cut corners to save costs and only use parts specifically designed to work best with your vehicle. For all engine oil changes, we exclusively use Mobile1. Transmission repairs and engine rebuilds are completed using only OEM and top-quality parts. Additionally, our strong relationships with reputable parts suppliers allow us to source high-quality parts quickly and at the best available prices.

Fast, Friendly, and Convenient Auto Repair Experiences
Major auto repair needs can be unexpected and stressful, and we strive to make each customer’s experience with us as convenient and painless as possible. We offer financing, towing, rental cars, an after-hours key drop, free shuttle drop-offs (within a 10 mile radius), and a 3 year/ 36,000-mile warranty for lasting peace of mind.
We also maintain a pleasant and inviting atmosphere in our customer lounge area. Comfortable seating, premium coffee, free high-speed WiFi and satellite TV help to pass any time you may spend waiting. The friendly and genuinely helpful mechanics and service advisors also set our shop apart.
Lasting Customer Relationships
We place a great deal of importance on communication with our customers. Our mechanics begin with thorough, detailed diagnostic inspections. We then provide the customer with an honest, clear, and complete description of any necessary repairs or services. Our technicians and service writers are happy to discuss your particular needs or concerns, as well as answer any questions you may have to help you make the right auto repair decisions.
We always obtain your authorization before starting any repairs. Upfront and accurate price quotes and estimated completion times ensure you can make well-informed decisions. Throughout the repair process, we will keep you updated on progress. Finally, we will follow up afterward to confirm your vehicle is running smoothly and that you’re satisfied with our service.
Full-Service Automotive Garage
Maintenance Services
Factory scheduled maintenance
30K, 60K, 90K, and 120K mile service
Fluid flushes
Fluid leak repair
Oil changes
Filter changes
Pre-purchase inspections
Road trip & safety inspections
Performance tune-ups
Transmission Repair Services
Transmission fluid change service/flush
Transmission diagnostics
New, used, & rebuilt transmission replacement
Front & rear axle repair
Rear & front differential repair, rebuild, & service
Driveshaft repair
Driveline repair
U Joint repair
Flywheel repair
Clutch repair & replacement
Automatic, manual, CVT, hybrid, & diesel transmissions
Cooling System Repair
Cooling system flush
Coolant replacement
Water pump replacement & repair
Oil temperature sensor, thermostat repair & replacement
Radiator repair & replacement
Suspension & Steering Systems
Suspension repair:
Shocks & struts replacements & repair
Chassis repair
Ball joints
Steering repair:
Steering column replacement
Power steering pump
Power steering fluid
Brake Repair & Service
Brake check, brake system inspection
Brake pad replacement
Rotor replacement, machine rotors
Calipers
Drum brakes
Brake fluid flush
(ABS) Antilock braking system repair
Emergency brake repair
Heating, Ventilation, Air Conditioning (HVAC) Services
FREE auto AC checks
Auto AC repair & service
AC recharge / Refrigerant (Freon) replacement
AC leak diagnostics & repair
AC dye tests
Cabin air filter replacement
Compressor replacement & repair
Evaporator repair & replacement
Heating system repair
Auto Electrical Service
Electrical Diagnostics & Repair
Electronic system repairs:
Power steering, locks, windows, windshield wipers, antennas
Car alarm repair
Headlight, tail light, & blinker repairs, bulb replacement
Air bag replacement
Starting Repair
Starter replacement
ignition system repair
Ignition coil replacement
Engine no start repair
Charging System repair
Car battery replacement
Alternator repair & replacement
Engine Repair
New, used, and rebuilt engine replacement
Motor rebuild/overhaul
Check engine light diagnostics & repair
Engine overheating diagnostics & repair
Engine noise diagnosis
Engine performance check, diagnostics, & repair
Fuel system maintenance:
Fuel injection service & repair
Fuel pump replacement
Fuel filter replacement
Fuel cap replacement
Belt replacements:
Timing belt replacement
Timing belt tensioner
Serpentine belt replacement
Hose inspection & repair
Hybrid Service
Electric motor repair
High voltage battery testing & conditioning
Hybrid battery replacement
Hybrid transmission service, repair, & replacement
Regenerative brake system repair & maintenance
Electric heating and air conditioning service & repair
Cooling system repair
Emissions repair
EGR valve
Air filter replacement
Mass airflow sensor
O2 sensor
Camshaft
Emissions repair
EGR valve
Air filter replacement
Mass airflow sensor
O2 sensor
Camshaft
Our Family – Car Mechanics and Automotive Service Team
Auto Service Experts is a family-run business that deeply values and depends on our dedicated employees. We strive to empower our mechanics and service writers by providing training and opportunities to grow in the automotive industry. We ensure they stay ahead in their field through ongoing education programs with CarQuest and Tech Net. Additionally, we cover registration and testing fees for ASE certifications from the National Institute for Automotive Service Excellence, supporting their professional development at every step.
Most importantly, we treat each other like family and are deeply invested in each other’s long-term success, both inside and outside the workplace. We strive to build the same kind of trust-based, genuine relationships with our customers. Your safety and satisfaction are our top priorities, and we always keep your best interests at heart. We believe that when people come first, everything else—including finances—will naturally fall into place.
Hybrid Car Repair Near You

Check out our blog for tips on finding the best hybrid car service center near you. Choose a reliable and trustworthy shop that has the proper training, equipment, and experience to handle all of your hybrid maintenance needs. The right mechanic can help you get the best performance and most life out of your HEV, ensuring that your investment is lasting!
Auto AC Repair

Get your ride ready for the summer (and occasional mid-winter) heat! Auto Service Experts offers FREE AC checks by Auto AC Repair Specialists in San Antonio! Our mechanics are professionally certified in automotive air conditioning system repair & service, and are Experts in Diagnostics – We Save You Time & Money!
Exceptional Customer Service
Excellent customer service can make a big difference when dealing with unexpected car repair needs. When a high-quality auto shop makes a recommendation, they also educate the customer about exactly why the service or repair is necessary. They explain how the customer will benefit from it (both now and in the future) without making them feel pressured. Exceptional customer service helps to build trust and gives you confidence that you are making the right, informed decisions for your vehicle and your safety.