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
-
2017 Kia Rio
Mileage106,170Service Date1/19/2026Services Performed- CHECKED CODES, HAS CODE P0420- CATALYTIC CONVERTER LOW EFFICIENCY. TESTED THE SYSTEM AND FOUND THE CATALYTIC CONVERTER IS BAD.
MARK L. gave our service a 5 star review on 1/20/2026 -
2017 Subaru Forester
Mileage78,014Service Date1/16/2026Services Performed- AUTOMATIC TRANSMISSION FLUID – Drain & Refill
- DIFFERENTIAL FLUID – Drain & Refill – Rear
- DIFFERENTIAL FLUID – Drain & Refill – Front or Rear
VIC B. gave our service a 5 star review on 1/18/2026 -
2013 Ford F-150
Mileage231,037Service Date1/16/2026Services 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
- Remove wheels from vehicle. Inspect brakes.Rotate tires.Reinstall wheels to vehicle and torque lug nuts to manufacturer's specifications.
JOHN D. gave our service a 5 star review on 1/17/2026 -
2016 Honda Fit
Mileage138,464Service Date1/6/2026Services 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
DAVLYN C. gave our service a 5 star review on 1/7/2026 -
2009 Ford Flex
Mileage81,027Service Date12/29/2025Services Performed- Changed Motor Oil & Replaced Filter, Added 5 QTS Synthetic Motor Oil, Lube Chassis, Check all Fluid Levels
TERRY B. gave our service a 5 star review on 12/30/2025 -
2013 Ford Escape
Mileage213,069Service Date12/29/2025Services Performed- VACUUM BRAKE BOOSTER PUMP – Remove & Replace – 2.0L Eng
- CHECKED FOR CODES HAS HISTORY LEAN CODE, FOUND BROKEN VACUUM LINE GOING TO VACUUM PUMP, REPAIRED LINE. OIL LEAK IS COMING FROM VACUUM PUMP SEAL. NOISE IN THE FRONT END IS THE UPPER STRUT PLATE, SPRAYED WHITE LITHIUM GREASE ON UPPER STRUT MOUNT
JIM W. gave our service a 5 star review on 12/30/2025 -
2015 Buick Enclave
Mileage106,574Service Date12/19/2025Services Performed- HEADLAMP BULB – Remove & Replace – right Side – [Includes: R&I Fender Liner.]
SHARON G. gave our service a 5 star review on 12/21/2025 -
2013 Hyundai Sonata
Mileage138,668Service Date12/19/2025Services Performed- Changed Motor Oil & Replaced Filter, Added 4.5 QTS Synthetic Motor Oil, Lube Chassis, Check all Fluid Levels
PAUL O. gave our service a 5 star review on 12/20/2025 -
2018 Chevrolet Colorado
Mileage91,547Service Date12/18/2025Services Performed- THERMOSTAT – Remove & Replace – 3.6L Eng Thermostat Housing Assembly,w/Thermostat
- COOLANT TEMPERATURE SENSOR – Remove & Replace – 3.6L Eng – [Includes: R&I Thermostat Housing.]
GEORGE C. gave our service a 5 star review on 12/19/2025 -
2024 Honda CR-V
Mileage12,988Service Date12/16/2025Services Performed- emission inspection
RICK S. gave our service a 5 star review on 12/17/2025 -
2017 Ford Flex
Mileage80,882Service Date12/15/2025Services Performed- REMOVED ,REPLACED BATTERY AND CLEANED CABLES
- BATTERY FEE
LOWELL D. gave our service a 5 star review on 12/16/2025 -
2004 Oldsmobile Alero
Mileage179,122Service Date12/15/2025Services Performed- PRESSURE CHECKED COOLING SYSTEM O CHECK FOR LEAKS- NO LEAKS FOUND. TESTED THE HEATER SYSTEM AND FOUND THE HEATER CORE IS CLOGGED. BACK FLUSHED THE HEATER CORE. THE HEATER IS BLOWING HOT AIR NOW.
KELLY L. gave our service a 5 star review on 12/16/2025
