Welcome to Sigmund Auto Service
Premium Automotive Service in O'Fallon, MO
If you’re looking for auto repair in O'Fallon, MO, you’ve found us. Here at Sigmund Auto Service we work hard to earn your trust and loyalty. We know how important it is to find a O'Fallon car service you can rely on, so your satisfaction is our top priority each and every day.
Our professional automotive service offers you years of combined expertise from our well-trained technicians. We treat our auto repair professionals well because we value their skill and can-do attitude. We know our team sets us apart, saving you time and money, not to mention worry. When it comes to auto repair in O'Fallon, we are totally confident that Sigmund Auto Service is the best option in town!
Sigmund Auto Service
511 Civic Park Dr
O'Fallon, MO 63366-1653
(636) 272-3388
Mon-Thu: 8am-5pm
Friday: 7am-4pm
Sat-Sun: Closed
Sigmund Auto Service
511 Civic Park Dr
O'Fallon, MO 63366-1653
(636) 272-3388
Mon-Thu: 8am-5pm
Friday: 7am-4pm
Sat-Sun: Closed
Directions
Shop Partners
Why Choose Sigmund Auto Service

For years Sigmund Auto Service has been there for the people of O'Fallon. We love what we do, and that basic fact fuels our business. We are dedicated to our customers, and that’s why they stick with us—the best auto repair O'Fallon has to offer.
Sigmund Auto Service was founded on the basic idea that everyone deserves respect. It is our mission to treat each person that comes through our door with dignity and sensitivity. We believe this attention to detail has paid off by providing us with our loyal, friendly family of customers. That’s what makes Sigmund Auto Service the best car service in O'Fallon!
- 12 Month/12,000 Mile Warranty
- Trained Automotive Technicians
- Serving O'Fallon, MO
The Absolute Best Car Service in O'Fallon, MO
What sets Sigmund Auto Service apart from all of the others in O'Fallon, MO?
Trust: When it comes to auto repair in O'Fallon, MO, it’s all about earning loyalty and trust by doing our very best every day. We are determined to earn and keep your trust.
Talent: At Sigmund Auto Service, you can rest easy knowing that our highly-skilled, experienced auto service professionals are handling your car. Our technicians bring years of experience, skill, and education to the O'Fallon auto repair table.
Time: We take the time we need to provide you with top quality car service in O'Fallon, MO, and we take the time to talk to you about what that means. We listen to you so we understand your needs and goals for your auto repair.
Recently Serviced Vehicles
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2023 Chevrolet Traverse
Mileage19,313Service Date5/7/2025Services Performed- emission inspection
TIM S. gave our service a 5 star review on 5/8/2025 -
2017 Acura RDX
Mileage54,063Service Date5/6/2025Services Performed- Remove and reinstall four wheels to inspect brake condition. Inspect entire system.Found the left front brake hardware was rubbing on the inside of the brake rotor. Adjusted the brake hardware and lubed brake pad slides.Lining remaining is: Front (80 %) Rear ( 80%)
KAY S. gave our service a 5 star review on 5/7/2025 -
2017 Lexus RX 350
Mileage76,302Service Date5/6/2025Services Performed- Changed Motor Oil & Replaced Filter, Added 5 QTS Synthetic Motor Oil, Lube Chassis, Check all Fluid Levels
JUSTINE C. gave our service a 5 star review on 5/7/2025 -
2021 Ford F-150
Mileage47,226Service Date4/28/2025Services Performed- emission inspection
TOM R. gave our service a 5 star review on 4/29/2025 -
2017 Hyundai Sonata
Mileage57,660Service Date4/25/2025Services Performed- emission inspection
- Replace rear brake linings. Inspect condition and thickness of rear brake disc rotors. Retract rear brake caliper actuators. Clean and lubricate rear brake caliper slide mechanism. Adjust parking brake. Road test vehicle.
- Replace front brake pad linings. Check front brake disc rotor condition. Clean and lubricate brake calipers and slide mechanisms. Check and fill brake fluid. Bleed air from system. Road test vehicle.
RANDY B. gave our service a 5 star review on 4/26/2025 -
2017 Jeep Wrangler
Mileage111,963Service Date4/24/2025Services Performed- Changed Motor Oil & Replaced Filter, Added 6 QTS Synthetic Motor Oil, Lube Chassis, Check all Fluid Levels
PAT D. gave our service a 5 star review on 4/25/2025 -
2013 Chevrolet Traverse
Mileage112,498Service Date4/22/2025Services Performed- CHECK COOLANT LEVEL IN RADIATOR, COOLANT LEVEL IS LOW. FILLED COOLING SYSTEM AND PRESSURE TESTED. NO LEAKS FOUND
- Service air conditioner. Check condition of all belts and lines. Evacuate and recharge with reclaimed R-134. Test system performance.
JAY E. gave our service a 5 star review on 4/23/2025 -
2004 Pontiac Grand Prix
Mileage150,275Service Date4/22/2025Services Performed- safety and emission inspection
RICK S. gave our service a 5 star review on 4/24/2025 -
2006 Honda Accord
Mileage202,175Service Date4/18/2025Services Performed- WHEEL HUB – Remove & Replace – Front,One Side – [Includes: Replace Front Bearings, Seals and transfer Studs.]
- HOISTED VEHICLE AND FOUND THE HEAT SHIELD FOR THE CATALYTIC CONVERTER IS HANGING FROM THE VEHICLE. SECURED HEAT SHIELD BACK IN PLACE WITH HOSE CLAMPS.
PATTY C. gave our service a 5 star review on 4/19/2025 -
2017 Nissan Frontier
Mileage94,121Service Date4/17/2025Services Performed- HAS CODE P0448 FOR EVAP VENT SOLENOID SHORTED, TESTED VENT SOLENOID ALL IS WORKING CORRECTLY AT THIS TIME.
CONAN S. gave our service a 5 star review on 4/18/2025