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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2021 Ford F-150
Mileage76,011Service Date5/15/2026Services Performed- AIR FLOW SHUTTER ACTUATOR – Remove & Replace – Upper – [Includes: R&I Grille Assembly.]
- CHECKED THE AC SYSTEM AND CHECKED FREON LEVEL. SYSTEM HAS A FULL CHARGE OF FREON BUT THE AC COMPRESSOR IS NOT COMING ON. TESTED SENSORS AND WIRING, CHECKED ALL CODES. FOUND IT HAS CODES P059F AND P05A1 IN SYSTEM. BOTH CODES PERTAIN TO THE ACTIVE GRILLE SHUTTER. TESTED THE SYSTEM AND FOUND THE ACTIVE GRILLE SHUTTER ACTUATOR IS BAD. AFTER REPLACING GRILLE SHUTTER ACTUATOR AC COMPRESSOR IS STILL NOT COMING ON NO OTHER CODES SET, NO VOLTAGE AT COMPRESSOR PERFORMED VOLTAGE TEST AND FOUND A BUILT IN RELAY INSIDE THE BATTERY JUNCTION BLOCK IS CAUSING THE PROBLEM.
TOM R. gave our service a 5 star review on 5/16/2026 -
2012 Honda Accord
Mileage106,608Service Date5/14/2026Services Performed- safety and emission inspection
TIM D. gave our service a 5 star review on 5/15/2026 -
2022 Ford Escape
Mileage28,785Service Date5/14/2026Services Performed- emission inspection
JOSEPH Z. gave our service a 5 star review on 5/15/2026 -
2018 Dodge Charger
Mileage7,797Service Date5/12/2026Services Performed- TEST DROVE VEHICLE AND FOUND THE _FRONT_ BRAKE ROTORS ARE WARPED AND NEED TO BE REPLACED. REPLACED ROTORS, TEST DROVE VEHICLE, NO BRAKE SHAKE RETURNED.
SCOTT E. gave our service a 5 star review on 5/13/2026 -
2013 Dodge Avenger
Mileage149,423Service Date5/11/2026Services Performed- ABS HYDRAULIC CONTROL UNIT – Remove & Replace – V6
- REPLACED THE LEFT FRONT BRAKE CALIPER
KELLY L. gave our service a 5 star review on 5/13/2026 -
2015 Hyundai Sonata
Mileage72,755Service Date5/8/2026Services Performed- WINDOW REGULATOR – Remove & Replace – Front, One
- TESTED DRIVERS SIDE WINDOW AND FOUND WINDOW REGULATOR CAME APART CAUSING THE WINDOW TO NOT ROLL UP. NEEDS DRIVERS IDE WINDOW REGULATOR ASSEMBLY.
LAURA G. gave our service a 5 star review on 5/10/2026 -
2015 Chrysler Town & Country
Mileage116,756Service Date5/7/2026Services Performed- TESTED THE AC SYSTEM AND CHECKED THE FREON LEVEL. THE AC SYSTEM HAS A FULL CHARGE. TURNED ON AC SYSTEM AND CHECKED AIRFLOW. FOUND AIRFLOW WAS LOW. THE CABIN AIR FILTER IS CLOGGED. REPLACED THE CABIN AIR FILTER AND RECHECKED SYATEM. EVERYTHING IS WORK GOOD AT THIS TIME.
DAVLYN C. gave our service a 5 star review on 5/9/2026 -
2015 Toyota Camry
Mileage224,721Service Date5/4/2026Services Performed- Remove wheels from vehicle. Inspect brakes.Rotate tires.Reinstall wheels to vehicle and torque lug nuts to manufacturer's specifications.
- Changed Motor Oil & Replaced Oil Filter, Added full synthetic motor oil, Lube Chassis, Check all Fluid Levels,checked psi in all tires, Checked air filter
KATY S. gave our service a 5 star review on 5/6/2026 -
2017 Ford Fusion
Mileage50,257Service Date5/4/2026Services Performed- Changed Motor Oil & Replaced Oil Filter, Added full synthetic motor oil, Lube Chassis, Check all Fluid Levels,checked psi in all tires, Checked air filter
JUDY A. gave our service a 5 star review on 5/5/2026 -
2012 Chevrolet Equinox
Mileage188,351Service Date4/29/2026Services Performed- 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.
KRISTINA C. gave our service a 5 star review on 4/30/2026 -
2020 Kia Soul
Mileage33,829Service Date4/29/2026Services Performed- emission inspection
SANDY R. gave our service a 5 star review on 4/30/2026 -
2007 Chevrolet Avalanche
Mileage179,771Service Date4/23/2026Services Performed- FLUSHED THE BRAKE SYSTEM AND ADDED NEW FLUID
- safety and emission inspection
CHRIS C. gave our service a 5 star review on 4/28/2026
