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St. Louis Hills Auto is now 123 Auto. New Name. Same Great Service!

(314) 352-2005
8517 Gravois Rd.Affton, MO 63123

Auto Repairs

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When your check engine or brake warning light turns on, it means one thing – it’s time to get to the professionals at 123 Auto. Our ownership and staff, which includes ASE-certified technicians, has years of combined experience performing scheduled maintenance and automotive repair services. From state inspections to transmission repairs, we’re on hand to handle all your automotive service needs. We proudly serve local families and travelers in Affton, St. Louis, Mehlville, MO, and surrounding areas. Let us take care of your vehicle today. Scroll down to learn more about all the automotive services we perform. If you don’t know what’s wrong with your car, light truck, or commercial vehicle, that’s okay. Take your best guess or schedule for an engine diagnostic. We’ll figure it out when you arrive and get you back on the road safe.

Call us for our towing service 24 hours a day at (314) 647-1518. We’re happy to provide towing and wrecker services to drivers throughout Affton, St. Louis, Mehlville, and surrounding areas.

Areas Served : Affton, MO | St. Louis, MO | Mehlville, MO | and surrounding areas

Not sure what service you need? Visit our Diagnostic Center!

Axle, CV Joint & Driveshaft Repair

Your vehicle’s axle, CV joint, and driveshaft components are integral to the performance and drivability of your vehicle...

Belts & Hoses

Your vehicle’s belts and hoses are involved in processes within the cooling system, air conditioning system, charging system, and engine...

Brake Repair

A fully functioning brake system is crucial to your safety, the safety of your passengers, and the safety of other drivers on the road...

Climate Control Systems

A climate control system is a complex system that requires routine maintenance for increased seasonal performance and operation...

Cooling System Repair

The cooling system consists of a cooling fan, water pump, thermostat, radiator, heater core, heater valve, and various other parts...

Differential Repair

The differential is responsible for transferring engine power to the wheels. It also compensates for and adjusts to the differences...

Electrical and Electronic Systems

The electrical and electronic systems in your vehicle are responsible for routing power and information in order to dictate...

Engine Diagnostics and Performance

Every vehicle built since 1996 has been equipped with an On-Board Diagnostics System that monitors engine performance...

Exhaust System Repair

Located on the underside of your vehicle, the exhaust system is responsible for collecting and directing harmful emissions away from...

Four Wheel Drive System

Four wheel drive systems allow all four wheels on a vehicle to spin simultaneously. All 4WD vehicles have a transfer case between the...

Glass Repair and Replace

The glass windshields and windows on a vehicle serve multiple functions, like helping to protect occupants from the outside environment...

Lube, Oil & Filter Change

An oil change and oil filter replacement are one of many preventative maintenance services that help promote maximum vehicle performance...

Preventive Maintenance

Preventive maintenance is the care and protection of your vehicle against potential major auto repairs...

Roadside Assistance

Roadside assistance is for drivers who find themselves suddenly stranded with an inoperable vehicle...

Starting, Charging & Batteries

Your vehicle’s starting and charging system is involved in regulating multiple electrical processes to start your vehicle's engine...

Steering and Suspension System

The steering and suspension system on your vehicle is responsible for maintaining comfortable riding conditions and driving performance...

Tire Pressure Monitoring System (TPMS)

Tires operating below inflation standards put the overall performance of your vehicle and the safety of your passengers at risk...

Tire Services

Tires are the connection between your vehicle and the surface of the road. Tires are a critical part of your vehicle’s suspension system...

Transmission Repair

The transmission is the link between the engine and the wheels of your vehicle. Whether you drive a manual, automatic, or semi-automatic vehicle...

Vehicle Inspection

Vehicle inspections help to regulate proper vehicle maintenance. They also contribute to safe driving conditions...

Wheel Alignment

A wheel alignment consists of adjusting the wheels of your vehicle so that all wheels are parallel to each other and perpendicular to the ground...

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