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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2008 Toyota Highlander
Mileage154,366Service Date3/6/2026Services Performed- Remove wheels from vehicle. Inspect brakes.Rotate tires.Reinstall wheels to vehicle and torque lug nuts to manufacturer's specifications.
- safety and emission inspection
- 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
JEFF T. gave our service a 5 star review on 3/7/2026 -
2022 Hyundai Santa Fe
Mileage39,186Service Date3/5/2026Services 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
MIKE P. gave our service a 5 star review on 3/6/2026 -
2015 Chevrolet Malibu
Mileage190,933Service Date2/27/2026Services Performed- CRANKSHAFT MAIN OIL SEAL – Remove & Replace – 2.5L Eng Rear,w/California Emissions – [Includes: R&I Transmission Assembly. DOES NOT include wheel alignment.]
JIM M. gave our service a 5 star review on 2/28/2026 -
2016 Ford Edge
Mileage87,390Service Date2/26/2026Services Performed- CANISTER PURGE SOLENOID – Remove & Replace – In-Line4
- SCANNED SYSTEM AND FOUND CODES P1450- UNABLE TO BLEED UP FUEL TANK VACUUM, P2196- 02 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 1. TESTED THE EVAP SYSTEM AND FOUND THE VACUUM CONTINUED TO RISE WHEN COMMANDED CLOSED. TESTED THE EVAP PURGE VALVE AND FOUND WHEN UNPLUGGED AND COMMANDED CLOSED THE VALVE HAD A LEAK AND CONTINUED TO DRAW VACUUM THESE TESTS VERIFY THE EVAP PURGE VALVE IS FAULTY.
FRANK S. gave our service a 5 star review on 2/27/2026 -
2020 Honda Civic
Mileage35,712Service Date2/25/2026Services Performed- emission inspection
PATRICIA C. gave our service a 5 star review on 2/26/2026 -
2013 Toyota Prius
Mileage165,728Service Date2/23/2026Services 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
JEFF T. gave our service a 5 star review on 2/24/2026 -
2005 Chrysler PT Cruiser
Mileage217,934Service Date2/19/2026Services Performed- Road test vehicle. Check all suspension and steering parts for wear. Check tire pressure and condition. Check riding height. Check caster and camber and toe in and adjust to specs.
JAMES B. gave our service a 5 star review on 2/20/2026 -
2022 Ford Escape
Mileage32,732Service Date2/16/2026Services Performed- CHECKED BRAKE CONDITION, FRONT BRAKES HAVE OVER 50% LINING LEFT, REAR BRAKES HAVE 45% LINING LEFT
CATHY R. gave our service a 5 star review on 2/17/2026 -
2024 Subaru WRX
Mileage3,805Service Date2/13/2026Services 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
- emission inspection
JEFF T. gave our service a 5 star review on 2/14/2026 -
2016 Chevrolet Cruze Limited
Mileage110,731Service Date2/11/2026Services Performed- emission inspection
- RAISED VEHICLE AND FOUND OIL RESIDUAL AND OIL DRIPS UNDER VEHICLE. DE-GREASED ENGINE AND RAN VEHICLE. FOUND OIL LEAKING FROM 2 ENGINE OIL PAN BOLTS. TIGHTENED OIL PAN BOLTS, CLEANED ENGINE, NO LEAKS HAVE RETURNED.
TERRY S. gave our service a 5 star review on 2/12/2026 -
2013 Ford Edge
Mileage90,595Service Date2/11/2026Services Performed- TESTED SYSTEM AND FOUND THE BRAKE PEDAL IS LOW. BLEED MASTER CYLINDER AND BRAKE SYSTEM .THE BRAKE PEDAL STILL SEEMS SOFT AND IT IS FALLING. USED SCAN TOOL TO PERFORM AUTOMATED BLEED ON THE SYSTEM. ACTUATED ALL VALVES IN THE ABS HYDRAULIC ASSEMBLY WITH A SCANNER AND THE BRAKE PEDAL IS HIGH AND BACK TO NORMAL. APPEARS THAT ONE OF THE DUMP VALVES IN THE ABS HYDRAULIC UNIT WAS STUCK PARTIALLY OPEN AND THIS CAUSED THE ISSUE. IF THIS PROBLEM SHOULD COME BACK , THE ABS HYDRAULIC ASSEMBLY WILL NEED TO BE REPLACED.
BOB B. gave our service a 5 star review on 2/12/2026 -
2018 Chevrolet Equinox
Mileage123,477Service Date1/30/2026Services 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
PAT S. gave our service a 5 star review on 2/2/2026
