Store Info

3004 Highway K O'Fallon, MO 63368

Welcome to Car-X Tire & Auto
3004 Highway K O'Fallon, MO

We are here to serve all of your auto care needs.

Our fully qualified, trained and certified technicians are ready, willing, and able to properly diagnose the condition of your car or truck and provide the appropriate service, repair, or advice. Come in for a free inspection and allow us to earn your trust. We handle all your car's needs, including brakes, tires, oil changes, exhaust, batteries, inspections, and maintenance.

Not sure if you can afford the required service on your vehicle? We provide flexible financing options so that we can get you back on the road safely and affordably. We stand behind our work with our Car-X Guarantee.

Store Info

3004 Highway K O'Fallon, MO 63368

Store Hours

  • Monday:
    • 07:30 AM - 06:00 PM
  • Tuesday:
    • 07:30 AM - 06:00 PM
  • Wednesday:
    • 07:30 AM - 06:00 PM
  • Thursday:
    • 07:30 AM - 06:00 PM
  • Friday:
    • 07:30 AM - 06:00 PM
  • Saturday:
    • 07:30 AM - 05:00 PM
  • Sunday:
    • Closed


Courtesy Car
Emissions Testing
Special Offers
Store Coupons
Save $10 OFF Full Service, Full Synthetic
Oil Changes Featuring Valvoline Oil!
Includes FREE Tire Rotation

Save $5 OFF Conventional Oil Changes
Choose your savings!
$30 OFF any service or repair over $300
$20 OFF any service or repair over $200
$10 OFF any service or repair over $100
Brake Special!
Brake Pads
Only $119.99 INSTALLED!
Buy 3 Get One FREE!*
Continental or GENERAL

GET $20 OFF Computerized Wheel Alignment
* 1 Year Warranty $69.99 (reg $89.99)
* 3 Year Warranty $119.99 (reg $139.99)
* LifeTime Warranty $169.99 (reg $189.99)
Receive Coupons by Email
Thank you to Mike for his professionalism and fast response time. I made it home (Memphis, TN) safely thanks to your team. Appreciate the care.
Got a flat tire today and I drove into Car-X being the nearest shop around. Hardly 45 minutes for store close and I did not have an appointment, but Mike was super accommodative to get my puncture checked. Ended up being this big piece which damaged my tire, and the folks quickly got a new tire put in, balanced and all set before they closed for the day. Awesome service, am so grateful and appreciate the help on such a short notice!
Always a positive & quick experience at ofallon CarX with Mike and his team will keep coming back for all my fixes.
Great people working there. Took good care of me and my car. Friendly they let me know things that were coming up due on my car so I can get them taken care of soon definitely gonna come back amd have the stuff done here
Had an oil change and ask them to check the brakes. Needed brakes all around. Got the quote up front and made the appointment. Manager was polite and took time to talk with us. Price was exactly what was quoted. Friendly employees and a clean waiting room.
Just a bit more communication and update sometimes. Otherwise my visit was great. Ask for Mike
Update: I received a call from the Region Manager, Barry Leeson within an hour after posting a review on the CarX website. He was very apologetic and said this was a training issue with a newer manager. He agreed to immediately refund me and said the manager would get additional training to ensure it did not happen again. Was a breath of fresh air to have a company respond so quickly and take the right steps to solve a customer's complaint.They replaced my brakes/rotors and supposedly fixed a power steering leak. I was in a hurry when I picked it up and did not carefully read the invoice. When I did read it later there was a $200+ charge for "lifetime warranty". I did not ask for this and had indicated previously that I was not keeping the car much longer.Called the manager and after indicating that I thought it deceptive not to let me know about the $200 charge, he said that he was been in sales a long time and if he brings it up, the customer usually won't pay for it so he doesn't bring it up. What?!?!?! He also said he could not reverse the charge.He then told me that I needed a new power steering pump and since he knew I was not happy with the other charge he would "deeply discount" the replacement pump for $650. I called Firestone across the street and their price with no discount was $595. I went to Firestone.I will never use Car X anywhere again. Once you lose your customer's trust, it's hard to get back. Hope this post helps others to not be deceived and carefully check their receipt.The power steering still did not work properly. Took it back and
Quick service, fair price and good customer service. No complaints, but I did only get an emissions check, lol.
Always friendly and professional. Wait time is minimal. I always have the routine maintenance done at Car-X and if I need anything else done relating to any car issues I go there first.
Such awesome and kind dudes! Honest and smart!
I came in the other day with an issue I couldn’t figure out and Mark went above and beyond to help me out and be my saving grace Thank you very much! He’s Very nice and extremely knowledgeable and deserves a raise
We take our truck and car to car-x all the time on highway k in ofallon mo. Ryan, the manager tales great care of both our automobiles. He always wants to make sure you will be safe in your car when it leaves his shop. They are always very helpful in finding what the issues are to fix to keep you safe, thank you Ryan very much for taking care of our family!!!!
Ryan, who answered the phone is pleasant and courteous. In this day and age, it seems like when you call a business, you get passed from one person to the next. Ryan took care of everything I needed. He called back promptly with more info on the product I asked about. He took payment over the phone as I was unavailable to make it in. In my opinion, he is a fantastic frontman for CarX
Had my safety and emissions inspection done at Car-x and they have impeccable service. Didn't have to wait too long. Ryan and everyone was very super friendly. Will definitely continue going to them and I highly reccomend everyone else to do the same!
After getting frustrated trying to accomplish a simple task of emission inspection with huge waits at two competitors I called CarX on a Saturday, talked to a very helpful man, Ryan, who I found out later is new manager at this location. I was set up for a 7:30am (open time) on Monday morning and when I arrived a few minutes early I was happily greeted by manager Ryan holding door open. Very refreshing change from other garages. I was in and out in about 25 minutes, and in that time watched or listened to Ryan and his Trainor attend to several customers in person or on phone. I am a recruiter who is always really aware of those delivering good customer service, and for a business no one wants to deal with( it would be amazing if our cars just never needed repairs) the customer service I observed was stellar.
Great customer service. I made an appointment and they got me in and out in 15 minutes. It was a minor thing, BUT the fact I did not have to wait till they serviced me was really terrific. We have patronized these folks before and the service has always been great.