About

Founded in 2012, 123 Auto serves the automotive repair and new tire needs of customers in Affton, St. Louis, Mehlville, South Affton, South Affton County, Marlborough, and surrounding areas.

About 123 Auto

Tom and Cathy Wyningar founded 123 Auto in 2012. Tom first began working on cars in 1985 and was a dealer mechanic for 11 years. Tom’s brother-in-law, Paul Ewing, a 19-year GM mechanic, has since bought into the business. Tom, his wife Cathy, and Paul run the business.

123 Auto is your one-stop shop for all kinds of auto repairs. Our shop is equipped with the latest automotive diagnostic equipment and your vehicle is repaired by our highly-qualified, experienced technicians.

We treat our customers with the best of respect. You may not like what they have to say about the car, and may not like the price quoted, but we promise it will not be a lie. We pride ourselves on honesty, integrity, and customer service.

At 123 Auto, you can expect:

• Competitive prices on tire brands like MICHELIN®, BFGoodrich®, and Uniroyal®
• Tire services including computer spin balancing, TPMS service and adjustment, flat tire repairs, tire rotations, and low-profile tire installations
• Quality repair services including brake repairs, wheel alignments, steering and suspension system repairs, exhaust system repairs, and transmission repairs, performed by ASE-certified technicians
• Accurate car diagnostics; don't forget to check out our online diagnostic center if you have a problem but don't know what's wrong
• Other services including diagnostics, preventive maintenance, and glass repair, replacement, and tinting
• Missouri State Inspections – both safety and emissions
• Used car inspections for $35
• Selection of used cars for sale
• Free brake checks and free check engine light scan
• 24-hour towing available at (314) 741-8697
• Run-flat tires
• Fleet service
• After-hours key drop
• Shuttle service
• Free coffee and free Wi-Fi in our clean, comfortable waiting room

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Rely on our experienced service staff to perform accurate and friendly auto repairs and tire services. Contact us online or visit us today for service you can count on.