Auto Repair & Maintenance
in San Marcos, CA
Routine maintenance, diagnostics, and repairs for all makes and models. From Fiat to Ferrari and everything in between, HG Performance services cars and SUVs at our San Marcos shop.
Dealership Alternative Auto Maintenance and Repair
HG Performance continues the Heinz Gietz Autohaus legacy, which began in 1969. Our San Marcos location has operated since 2018. We provide a dealership alternative for drivers who want attentive maintenance and repair for cars and SUVs of all makes and models. From European and exotic vehicles to Asian and American makes, our team works with a wide range of vehicles and service needs.
Our services range from oil changes, brake service and scheduled maintenance to mechanical and electrical diagnosis, transmission fluid service and more involved repairs. We also perform valve cover gasket replacement, repair engine oil leaks, and replace water pumps and timing chains where applicable. If your vehicle needs a manual transmission drain and fill, tire service, alignment or air conditioning repair, you can contact us with its year, make and model so we can review the request.
We also offer pre-purchase inspections to help you evaluate a vehicle before buying it. Whether you are keeping up with maintenance or addressing a new concern, HG Performance can help you determine the next step for your car or SUV. Contact us to request an appointment at our San Marcos shop.
Request an Appointment
AUTO REPAIR & MAINTENANCE
Services for Cars and SUVs of All Makes and Models
From scheduled maintenance to mechanical repairs and diagnostics, HG Performance services cars and SUVs at our San Marcos shop. Explore our services below, or tell us about your vehicle when requesting an appointment. Service availability depends on the vehicle and the work requested.
Oil Changes & Scheduled Maintenance
Engine oil changes, scheduled maintenance, and applicable fluid services, including power steering fluid service. Service needs vary by vehicle.
Diagnostics & Check Engine Lights
Mechanical and electrical diagnosis for check engine lights, warning messages, unusual noises, and drivability concerns.
Brake Service & Big Brake Kits
Brake pad and rotor service, brake repairs, and big brake kit inquiries for applicable vehicles.
Engine Repair & Oil Leaks
Engine oil leak repair, plus valve cover gasket, water pump, and timing chain replacements.
Transmission & Drivetrain Service
Transmission and differential oil services, including manual transmission drain and fill.
Wheel Alignments & Corner Balancing
Wheel alignment service and corner balancing inquiries for applicable vehicles.
Tire Mounting & Balancing
Tire mounting and balancing for the cars and SUVs we service.
AC & Heating Repair
Diagnosis and repair of air conditioning and heating concerns.
Suspension Service & Upgrades
Suspension repair, maintenance, and upgrade inquiries. Available options depend on the application.
Pre-Purchase Inspections
Buying a used car? Contact us before you buy to discuss a pre-purchase inspection, regardless of make or model.
Walnut Blasting & Carbon Cleaning
Walnut blasting and carbon cleaning inquiries. Availability depends on the vehicle and engine.
Rod Bearing Replacement
Rod bearing replacement inquiries, reviewed based on the vehicle and engine.
Need another repair or maintenance service? HG Performance handles a broad range of work. Tell us about your car or SUV and what it needs, and our team can review your request.
All Makes and Models, From Fiat to Ferrari
HG Performance works on cars and SUVs across European, exotic, Asian, and American makes. Vehicles we commonly service include:
EUROPEAN
- BMW
- Mercedes-Benz
- Audi
- Volkswagen
- Porsche
- Range Rover
- Alfa Romeo
- Fiat
EXOTIC
- Ferrari
- Lamborghini
- McLaren
ASIAN
- Mitsubishi
- Subaru
- Toyota
AMERICAN
- Tesla
- Ford
- Chevrolet
- Dodge
Tesla & Other EVs
Select general maintenance, such as tires, brakes, alignment, and suspension work, depending on the vehicle. We do not offer high-voltage maintenance or repair.
1995 & Older Vehicles
Requests are reviewed case by case. Basic services such as brakes, tires, alignments, and oil service may be possible; diagnosis and advanced repairs are generally limited.
The service we can provide depends on the vehicle and the work requested. If you don’t see your make listed, contact us with your vehicle details.
VISIT OUR SHOP
Auto Repair in San Marcos, Serving North County San Diego
HG Performance provides repair and maintenance for cars and SUVs of all makes and models at 182 Pawnee St, San Marcos, CA 92078. Drivers also visit us from Vista, Carlsbad, Oceanside, Encinitas, Escondido, Rancho Santa Fe, and across Greater San Diego.
Monday–Friday, 8 AM–5 PM · By appointment
FAQ
Frequently Asked Questions
How often should I change my car’s oil?
The appropriate interval depends on your vehicle, the oil specification, driving conditions, and the manufacturer’s guidance. Contact us with your vehicle’s year, make, model, and service history to discuss its maintenance needs.
Can HG Performance diagnose a check engine light?
We offer mechanical and electrical diagnosis for vehicles we can service. Tell us your vehicle’s year, make, and model and describe the warning light and any symptoms. Requests involving older vehicles are reviewed individually.
Do you repair engine oil leaks?
Yes. We repair engine oil leaks and perform valve cover gasket replacements. The source of the leak and the appropriate repair depend on the vehicle.
How do I know if my brakes need service?
Noise, vibration, a change in pedal feel, or a change in braking are reasons to have the system checked. We perform brake pad and rotor service and brake repairs; the work needed depends on the vehicle’s condition.
When should I get a wheel alignment?
Pulling to one side, uneven tire wear, or steering that feels off may indicate an alignment concern. We provide wheel alignment service for cars and SUVs of all makes and models, depending on the vehicle and requested work.
Do you service manual transmissions?
We perform manual transmission drain and fill services. Contact us with your vehicle details so we can review the specific service request.
Can you inspect a used car before I buy it?
We consider pre-purchase inspection requests for all makes and models. Call or email with the vehicle details and your purchase timeline before you buy. The inspection available depends on the vehicle.
Why is my car’s AC blowing warm air?
Warm air can have several causes; the system needs to be checked to determine the issue. HG Performance offers air conditioning diagnosis and repair for vehicles we can service.
How often should transmission fluid be changed?
The appropriate interval and type of service depend on your vehicle and its manufacturer’s guidance. HG Performance offers transmission oil services, including manual transmission drain and fill. Contact us with your vehicle’s year, make, and model to discuss the applicable service.
Do you provide maintenance for Tesla and other electric vehicles?
We consider general maintenance requests for Tesla and other EVs, including tires, brakes, alignments, and suspension work, depending on the vehicle. We do not provide high-voltage maintenance or repair.
