By Joe Tralongo
Updated May 16, 2025
Audi’s A4 sedan for 2018 offers a nearly unbeatable combination of style, technology, luxury and performance, all at a price that may come as a shock to some competitors. With quattro all-wheel drive (AWD) standard on most models, the A4 even has a leg up in the traction and stability department.
The 2018 Audi A4 luxury sedan may be too high-tech for some, and we have no data on its long-term reliability. Those needing a large rear seat might be happier in a Mercedes-Benz C-Class or Lincoln MKZ, while those seeking more performance should look to the 2018 Audi S4.
The 2018 Audi A4 luxury sedan limits front-wheel drive (FWD) to the base Ultra; all other models now come with quattro AWD standard. Some previously optional driver-safety features are added to the Premium Plus, and even more for the Prestige. Also new is a Black Optic package.
Last year’s Audi A4 sedan got a bit bolder on the outside and a lot sportier under the skin. The 2018 Audi A4 sedan continues this trend, increasing the availability of quattro all-wheel drive and packing in more hardware and luxury features. Audi continues to lead the midsize-luxury segment by offering such fantastic features as a customizable color instrument display featuring a virtual speedometer, tachometer and a giant navigation display using Google maps. The adaptive cruise control is also hooked into the system, allowing it to slow down for approaching curves or offramps long before you’ll ever see them. Although not as powerful or fun to drive as a Cadillac ATS or BMW 3 Series, the A4 nevertheless is one impressive European sedan. If you love the A4 and hunger for more performance, check out the new-for-2018 Audi S4 (reviewed separately).
2018 Audi A4 pricing starts at $15,286 for the A4 Ultra Premium Sedan 4D, which had a starting MSRP of $37,975 when new. The range-topping 2018 A4 Prestige Sedan 4D starts at $21,282 today, originally priced from $50,975.
Original MSRP | KBB Fair Purchase Price (national avg.) | |||
---|---|---|---|---|
$37,975 | $15,286 | |||
$40,175 | $15,112 | |||
$41,475 | $16,075 | |||
$44,675 | $17,471 | |||
$46,475 | $19,654 | |||
$50,975 | $21,282 |
The Kelley Blue Book Fair Purchase Price for any individual used vehicle can vary greatly according to mileage, condition, location, and other factors. The prices here reflect what buyers are currently paying for used 2018 Audi A4 models in typical condition when purchasing from a dealership. These prices are updated weekly.
If you could peel away the 2018 Audi A4’s cool virtual gauge cluster, remove the adaptive cruise control and turn off the adjustable shock settings, you’d still have an amazingly fun performer. The A4’s steering is precise and perfectly weighted at all speeds, and the sophisticated suspension finds that happy place between a comfortable ride and adept handling. The high-output version of the 2.0-liter turbocharged 4-cylinder puts every ounce of its 252 horsepower to good use. So good is this engine, that it can launch Audi’s 2018 A4 sedan to 60 mph in just 5.7 seconds. The 7-speed dual-clutch automatic transmission is a sheer joy in either manual or fully automatic mode, and Audi still offers a 6-speed manual for die-hard old-schoolers. Opt for the Prestige trim and you’ll gain access to an adaptive suspension with adjustable dampers that can be set to stiffen for improved cornering.
While the big news is the virtual cockpit, there’s more to the 2018 A4 interior than the tech. MMI is much improved, using a touch pad to make entering addresses a breeze. The dash is simpler as well, with the MMI screen moved to the top as we’ve seen in other recent Audi models. The basics are spot-on, too, with comfortable seats, easy-to-use main controls and first-rate materials. The smallish rear seat, lack of a soft spot for the driver’s right knee to rest, and a sometimes busy virtual cockpit display are the only real downsides.
Last year’s remake at first didn’t look as if much changed, but upon closer inspection, nothing was left unchanged. The car is a little wider and longer, but with more angular lines around the grille, headlights and details. Take the character line that runs along the side of the car, for example. On the old one it petered out weakly as it approached the taillight. Now it boldly cuts through to the trunk on one end, while in front, the hood itself makes up the upper portion of the line. The proportions are spot-on, and the car looks right from any angle.
VIRTUAL COCKPIT
Audi has taken the LCD gauge concept to the extreme, and its accomplishment is on full display inside the 2018 Audi A4 Prestige. The driver can choose to minimize the virtual gauge sizes allowing the entire screen to be filled with a satellite view of the road. It’s like Google Earth for drivers.
ADAPTIVE CRUISE CONTROL
The 2018 Audi A4’s adaptive cruise control can help maintain a safe distance between the car and traffic ahead; it can slow or even bring the car to an emergency stop; it can even anticipate upcoming curves or onramps and slow the vehicle to a safe speed before encountering them.
Of course the 2018 Audi A4 comes nicely equipped. Standard issue on the base Ultra Premium includes 3-zone automatic climate control, heated front seats, leather seating and a power sunroof. The MMI infotainment display is mounted high on the dash, with the rotary controller in front of the shifter. All Audi A4 models come with keyless ignition, HID headlights with cool LED accents, a rearview camera, and LED taillights above dual exhausts. Other standard features include 17-inch alloy wheels, paddle shifters for the 7-speed dual-clutch automatic, automatic start/stop to help conserve fuel at stoplights, and Audi’s Drive Select adjustable drive modes.
We’ve talked the virtual cockpit to death, but it’s standard on the Prestige and available on Premium Plus models. Also available is a 7-inch infotainment screen, or an 8.2-inch version with navigation and the whole enchilada. A sport suspension option lowers ride height about an inch and gives the A4 more bite in corners, and an available adaptive-damping suspension lowers the car about a half-inch and adds different shock-absorber stiffness for Comfort, Normal and Sport settings. On Prestige models you get the full driver-assist suite including adaptive cruise control and auto high beams.
There’s only one engine size available for the 2018 Audi A4, but it comes in two flavors. With 2.0 liters of displacement, it puts out 190 horsepower on FWD Ultra trims and is connected to a 7-speed dual clutch automatic transmission that can be operated in normal “D,” in sportier “S,” or manually through the standard steering-wheel-mounted paddles. All other models have a more powerful 252-horsepower version of the 2.0-liter and include as standard quattro AWD that not only provides superior handling and wet-weather grip, but also accelerates the A4 from a standstill to 60 mph in about 5.7 seconds. The more powerful A4 models also offer the option of a 6-speed manual, the only car in this class to offer a manual with standard AWD.
2.0-liter turbocharged inline-4 (A4 Ultra)
190 horsepower @ 4,200-6,000 rpm
236 lb-ft of torque @1,450-4,200 rpm
EPA city/highway fuel economy: 27/37 mpg (FWD)
2.0-liter turbocharged inline-4 (A4 quattro)
252 horsepower @ 5,000-6,000 rpm
273 lb-ft of torque @ 1,600-4,000 rpm
EPA city/highway fuel economy: 24/34 mpg (AWD, automatic), 24/33 mpg (AWD, manual)
Get $4,000 Customer Bonus on a new 2025 Audi A4 Sedan 40 TFSI quattro.
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Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
---|---|---|---|---|---|
2022 | + $718 | $25,826 | $23,060 | ||
2023 | $3,721 | $22,105 | $19,062 | ||
2024 | $6,307 | $15,798 | $12,526 | ||
Now | $2,522 | $13,276 | $10,082 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.
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Curb Weight | 3483 lbs. | ||
---|---|---|---|
Fuel Capacity | 15.3 gallons | ||
Front Head Room | 38.9 inches | ||
Front Leg Room | 41.3 inches | ||
Max Seating Capacity | 5 | ||
Overall Length | 186.1 inches | ||
Front Shoulder Room | 55.9 inches | ||
Trunk or Cargo Capacity | 13.0 cu.ft. | ||
Turning Diameter | 38.1 feet | ||
Wheel Base | 111.0 inches | ||
Width with mirrors | 79.6 inches |
Alloy Wheels | Available | ||
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Fog Lights | Available | ||
Moon Roof/Sun Roof | Available | ||
Number of Doors | 4 doors | ||
Power Folding Exterior Mirrors | Available | ||
Roof Rails | Available | ||
LED Headlights | Available | ||
Rear Spoiler | Available |
City | 27 mpg | ||
---|---|---|---|
Highway | 37 mpg | ||
Combined | 31 mpg |
Drivetrain | FWD | ||
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Transmission Type | Automatic | ||
7 speed | Available | ||
Recommended Fuel | Premium | ||
Dual-Clutch Automatic Transmission | Available |
Horsepower | 190 @ 4200 RPM | ||
---|---|---|---|
Torque | 236 @ 1450 rpm | ||
Engine | 4-Cyl, Turbo, 2.0 Liter | ||
0 to 60 | 6.1 seconds | ||
Top Speed | 130 mph |
Basic | 4 years / 50000 miles | ||
---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 12 years / Unlimited miles |
Used 2018 Audi A4 | New 2025 Audi A4 | Used 2018 Mercedes-Benz CLA | Used 2018 Acura ILX | ||
---|---|---|---|---|---|
Price | $15,112 | $43,295 | $16,614 | $14,300 | |
KBB.com Rating | 4.7 | 4.3 | 4.6 | 4.3 | |
Consumer Rating | 4.5 | 4.5 | 4.5 | 4.3 | |
Fuel Economy | City 27/Hwy 37/Comb 31 MPG | City 26/Hwy 36/Comb 29 MPG | City 24/Hwy 37/Comb 29 MPG | City 25/Hwy 35/Comb 29 MPG | |
Fuel Type | Gas | Gas | N/A | N/A | |
Safety Rating | 5.0 | N/A | N/A | 5.0 | |
Seating Capacity | 5 | 5 | 5 | 5 | |
Basic Warranty | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | 4 years or 50000 miles | |
Horsepower | 190 @ 4200 RPM | 201 HP | 208 @ 5500 RPM | 201 @ 6800 RPM | |
Engine | 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, i-VTEC, 2.4 Liter | |
Drivetrain | FWD | AWD | FWD | FWD |
Yes, the 2018 Audi A4 is a good car, as reflected by its above-average Kelley Blue Book rating of 4.7 out of 5.
2018 Audi A4 city/highway fuel economy ratings range from 24/34 mpg to 27/37 mpg, depending on trim and equipment.
Used 2018 Audi A4 prices currently range from $15,112 for the Ultra Premium Plus Sedan 4D to $21,282 for the Prestige Sedan 4D when purchasing from a dealership, depending on a range of factors like equipment, mileage, and condition.
The cheapest 2018 Audi A4 is the Ultra Premium Plus Sedan 4D, with a Kelley Blue Book Fair Purchase Price of $15,112.
The 2018 Audi A4 is part of the 5th-generation A4, which our owners give an above-average reliability rating of 4.6 out of 5.