Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
Audi A4
for sale
near
Firestone, CO
under $30,000
- 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
2017 Audi A4 2.0T Premium Plus
Vehicle information
Features
Reviews
Patient sales service for long distance (Internet)
Patient sales service for long distance (Internet) purchase. Salesman arranged for transportation from hotel and vehicle was parked out front when we arrived for pickup.
Best all-rounders
The goods: Perfectly blends performance and comfort. Easily gets ~40 mpg during the summer time on highway drives without sacrificing any power (2.0T Premium Plus Quattro) . DSG is pretty fun when driven aggresively. Tech still feels fresh for a 2017. B&O sound is stellar. Very reliable despite the VW/Audi reputation in the past. This is the ultimate daily sleeper in my opinion. The not so good: DSG shifts quite harshly on low speed or during bitter cold months when the car is not warm enough. DSG maintenance is also quite costly and has to be done every 40k miles. Other nitpicky items: Audi non-sport seats have pretty short thigh support, so get the sport package with the thigh extenders, they are totally worth it. The need to use infotainment screen to put wiper in service position and check oil level (yup, no dipsticks) is unnecesary. Brake pad wear sensors are annoying when they go off. Major service reminder reset needs to be done at dealership, so it can be a little pricey. Overall, I think this is one of the best cars I've ever owned. I usually like to get the top trims, but Premium Plus (mid trim) is the way to go and has a lot more equipment than you'll need. The nickpicky items I think are common in modern cars, so not really a deal breaker.
Used
2019 Audi A4 2.0T Premium Plus
Vehicle information
Features
Reviews
Recently we purchased a Subaru Crosstrek from Flatirons
Recently we purchased a Subaru Crosstrek from Flatirons Subaru in Boulder, Colorado. The dealership was very clean, well organized and made a good impression from the moment we entered it. The available salesman at the time we came in was Connor. He was very polite, professional, knowledgeable and mannered. He showed us several vehicles helping us to decide what to buy. If you want to buy a Subaru I definitely recommend Flatirons Subaru and also ask for Connor. You will not be disappointed. Unfortunately we had the displeasure to run into another person who looked very unprofessional. But the experience we had with Connor, convinced me to give 5 stars to this business.
Audi A4 is amazing
Best car I have ever owned hands down!! Classy and sleek interior design is amazing. After driving one this is all I will ever buy.

Used
2014 Audi A4 2.0T Premium
Vehicle information
Features
Reviews
Foundation Cadillac did it again—and honestly, I’m not
Foundation Cadillac did it again—and honestly, I’m not surprised! When my 12V battery died on my Cadillac Lyriq, David Hann and his incredible team jumped into action. They did whatever it took to get me back on the road quickly and stress-free. David is truly amazing—always professional, caring, and reliable. If you’re ever in need of service, repairs, or even looking to make a purchase, go to Foundation Cadillac and ask for David. You’ll be in great hands!
This car is so good I used it to go everywhere it’s
This car is so good I used it to go everywhere it’s really nice it drives nice and I never had a problem with it






Vehicle information
Features
Reviews
Amazing dealers, and they try and make everything as
Amazing dealers, and they try and make everything as smooth as possible for the customer. As a first time buyer, I’d highly recommend.
All the creature comforts, milage and style.
Great wheels with superb value. Used with Titanium package, clean lines and great interior. My daughter loves it and it gets great gas milage with solid power.
There are additional matching cars outside your search area.
Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.
As a benefit to some of our dealer customers, we display their listings first.






Used
2019 Audi A4 2.0T Premium Plus
Vehicle information
Features






Used
2023 Audi A4 45 S line Premium Plus
Vehicle information
Features






Used
2024 Audi A4 45 S line Premium Plus
Vehicle information
Features






Used
2017 Audi A4 2.0T Premium Plus
Vehicle information
Features






Used
2013 Audi A4 2.0T Premium quattro
Vehicle information
Features






Used
2018 Audi A4 2.0T Premium Plus
Vehicle information
Features






Used
2023 Audi A4 45 S line Premium Plus
Vehicle information
Features






Used
2018 Audi A4 2.0T Premium
Vehicle information
Features






Used
2014 Audi A4 2.0T Premium
Vehicle information
Features






Used
2013 Audi A4 2.0T Premium
Vehicle information
Features
-
Prev - 1
- 2
-
Next
*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 A4 by price
Compare the Audi A4
Audi A4 under $30,000 by city
-
Audi A4 under $30,000 in Firestone, CO
3 Great Deals out of 22 listings starting at $6,999
-
Audi A4 under $30,000 in Frederick, CO
4 Great Deals out of 25 listings starting at $6,999
-
Audi A4 under $30,000 in Dacono, CO
5 Great Deals out of 32 listings starting at $6,488
-
Audi A4 under $30,000 in Longmont, CO
3 Great Deals out of 22 listings starting at $6,999
-
Audi A4 under $30,000 in Fort Lupton, CO
3 Great Deals out of 28 listings starting at $6,999
-
Audi A4 under $30,000 in Erie, CO
6 Great Deals out of 36 listings starting at $6,488
-
Audi A4 under $30,000 in Niwot, CO
3 Great Deals out of 23 listings starting at $6,999
-
Audi A4 under $30,000 in Todd Creek, CO
8 Great Deals out of 49 listings starting at $5,800
-
Audi A4 under $30,000 in Gunbarrel, CO
4 Great Deals out of 30 listings starting at $6,488
-
Audi A4 under $30,000 in Lafayette, CO
5 Great Deals out of 37 listings starting at $5,800
-
Audi A4 under $30,000 in Broomfield, CO
7 Great Deals out of 48 listings starting at $5,800
-
Audi A4 under $30,000 in Brighton, CO
8 Great Deals out of 51 listings starting at $5,800
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
${award_blurb}
${award_two_blurb}