2018 Audi A4 Premium Plus

Listed by a franchise dealer in St. Charles, IL · On lot for 14 days · VIN verifiable at NHTSA

This used 2018 Audi A4 Premium Plus is listed at $18,184 by audi exchange st. charles in St. Charles, IL 60174. It has 79,379 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Gray. It features a 4WD drivetrain with a 2.0L I4 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 13 comparable listings matched to this vehicle, the estimated market range is $14,500 to $18,995. These comparisons match year, make, and model and may currently span trims and configurations (trim-level matching is rolling out).

This vehicle has been on the lot for 14 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).

Market context

This listing is part of OAV's broader St. Charles, IL sedans market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.

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How this deal is rated

OAV compares this 2018 Audi A4 against similar vehicles currently available in the local and regional market — same make, model, and year range (currently across available trims and configurations; trim-level matching is rolling out), filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:

• Great Deal — priced below the typical range for comparable vehicles.
• Fair Price — priced within the expected range for comparable vehicles.
• Overpriced — priced above the typical range for comparable vehicles.

Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners surface additional verification signals.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in St. Charles, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN WAUENAF46JA167494 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.

Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is processed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2018 Audi A4 Market in IL

Based on all 41 2016-2020 Audi A4 listings in the IL market, the average asking price is $15,453. This listing at $18,184 is $2,731 above the broader IL average (18% above the IL average). This is a wider, all-trim comparison across IL; OAV's price verdict above uses the closer comparable set. Comparable prices in IL range from $5,999 to $25,665. Similar vehicles spend an average of 64 days on dealer lots in this market.

Similar Audi A4 Listings in IL

8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: Premium Plus — compare trims below)