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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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Used
Audi cars
for sale
near
Saint Charles, MO
under $40,000
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

Used
2018 Audi A3
Vehicle information
Features
Reviews
Wonderful thank you Fred Willams and team for the
Wonderful thank you Fred Willams and team for the amazing experience ❤️❤️,Im so greatful you guys are wonderful
Excellent Sport Sedan for an Exceptional Price
The car was a 2 year old used car, but was meticulously cared for and lightly driven. Interior was in exceptional condition and it featured the options and color combo I desired.
Used
2025 Audi Q3 Premium 45 TFSI S line quattro Tiptronic
Vehicle information
Features
Reviews
Bought my second vehicle from Don Brown Chevy recently
Bought my second vehicle from Don Brown Chevy recently and when I tell you they treat you like family they really do! They go above and beyond. Making sure you get what you need! Will continue recommending and sending everyone to Don Brown!!
Used
2017 Audi Q7 3.0T Premium
Vehicle information
Features
Reviews
Go see Billy Willis!
We had the pleasure of working with Billy Willis. He was so knowledgeable and placed zero pressure on us. It was by far the easiest experience we’ve had. We couldn’t be happier with our 2022 Tucson or with the service we received from Billy!
Certified used purchase
This is my first experience with Audi and I am extremely happy with this beautiful SUV. The ride is quiet and comfortable and the power and acceleration are impressive. I find myself going to the store for no reason and a recent drive to visit my parents 400 miles away went quickly thanks to the massaging seats and powerful Bose stereo. Very happy so far with my Q7.
Used
2014 Audi Q5 2.0T Premium Plus
Vehicle information
Features
Reviews
THE BEST HYUNDAI DEALERS AROUND.
Thank you Andy for taking the time with me in purchasing my new Sonata. Showing and telling me about the new features of my Sonata. Thank you also for your assistance in helping me with my accident. I will definitely recommend you to anyone who needs a new car. Also thank you Ryan for your assistance in handling my finances. You are both amazing and Awesome. Michael Simpson.
Great and Reliable Car!
Having now over 202,000 miles I can say this is a great car to own and drive. Friends never believe the mileage that is on the car because it rides and drives so amazing. The interior quality of materials and fitment are also exceptional and have held up perfectly over the years. These cars do require maintenance but if properly taken care of they will last a long time and be very reliable!

Used
2022 Audi Q3 45 S line Premium
Vehicle information
Features
Reviews
I love my car!
I usually lease my cars. I loved this one so much, I bought it. My only issue is that it was recalled 4 months after I purchased it. Sue to the supply chain issues, it took nearly 4 months for the parts to fix it. I did have a loaner for the 4 months, but it was disappointing. I love the car and would purchase again.
There are additional matching cars outside your search area.
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Used
2023 Audi Q5 45 S line Premium Plus
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Used
2019 Audi Q7 55 Prestige
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Used
2018 Audi Q7 3.0T Prestige
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2020 Audi Q5 45 Premium Plus
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2024 Audi Q5 45 S line Premium Plus
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Used
2017 Audi Q5 2.0T Premium Plus
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Used
2017 Audi Q7 3.0T Premium
Vehicle information
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Used
2023 Audi Q3 Premium 45 TFSI S line quattro Tiptronic
Vehicle information
Features






Used
2015 Audi SQ5 3.0T Prestige
Vehicle information
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Used
2022 Audi e-tron Premium Plus
Vehicle information
Features
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used Audi by price
Audi under $40,000 by city
-
Audi under $40,000 in Saint Charles, MO
32 Great Deals out of 154 listings starting at $5,000
-
Audi under $40,000 in St. Charles, MO
32 Great Deals out of 154 listings starting at $5,000
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Audi under $40,000 in Saint Peters, MO
32 Great Deals out of 153 listings starting at $5,000
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Audi under $40,000 in St. Peters, MO
32 Great Deals out of 153 listings starting at $5,000
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32 Great Deals out of 155 listings starting at $5,000
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Audi under $40,000 in Maryland Heights, MO
32 Great Deals out of 155 listings starting at $5,000
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Audi under $40,000 in Hazelwood, MO
34 Great Deals out of 164 listings starting at $5,000
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Audi under $40,000 in Cottleville, MO
32 Great Deals out of 152 listings starting at $5,000
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Audi under $40,000 in St. Ann, MO
34 Great Deals out of 165 listings starting at $5,000
-
Audi under $40,000 in Saint Ann, MO
34 Great Deals out of 165 listings starting at $5,000
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Audi under $40,000 in Edmundson, MO
34 Great Deals out of 165 listings starting at $5,000
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Audi under $40,000 in Weldon Spring, MO
32 Great Deals out of 152 listings starting at $5,000
Audi under $40,000 in Saint Charles, MO by model
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Audi A4 under $40,000 in Saint Charles, MO
5 Great Deals out of 24 listings starting at $5,000
-
Audi Q3 under $40,000 in Saint Charles, MO
1 Great Deal out of 24 listings starting at $13,500
-
Audi Q5 under $40,000 in Saint Charles, MO
4 Great Deals out of 24 listings starting at $10,575
-
Audi A3 under $40,000 in Saint Charles, MO
4 Great Deals out of 23 listings starting at $5,800
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