by VIN, Year, Make, Model by License Plate

2018 Audi S4 Overview, Reviews, Ratings & Specs

Rating: 0.00
Based on 0 Owner Reviews β–Ά
Cathleen V | March 31, 2025
The 2018 Audi S4 is a performance-oriented compact executive sedan, building upon the legacy of the Audi A4. Offered as a sedan, the S4 has been available since the late 1990s. The 2018 model year features trims like Premium Plus and Prestige. It stands out for its blend of luxury, sporty handling, and powerful engine. New, the S4 ranged roughly from $51,000 to $60,000, but current used prices are significantly lower.
The Good

The 2018 Audi S4 delivers thrilling performance from its turbocharged V6, appealing to emotional buyers seeking driving excitement. Practical buyers appreciate its comfortable and luxurious interior, all-weather capability with Quattro all-wheel drive, and decent fuel efficiency for its class. Its sophisticated design and strong reliability ratings also contribute to its appeal.

The Bad

Potential weaknesses of the 2018 Audi S4 include higher maintenance costs compared to non-luxury brands. Some owners have reported issues with the infotainment system and electronic components. The rear seat space can feel a bit cramped for taller adults. Be mindful of potential oil consumption in some units and check service records carefully.

2018 Audi S4: Quick Overview

  • Engine Options: One engine option: a 3.0-liter turbocharged V6.
  • Horsepower: 354 hp
  • Fuel Economy:
    • EPA estimated: 21 mpg city / 30 mpg highway / 24 mpg combined
  • 0–60 Times: Approximately 4.4 seconds.
  • Towing Capacity: Not recommended or rated for towing.
  • Trim-Level Features:
    • Premium Plus:
      • Leather upholstery
      • Heated front seats
      • Audi Connect PRIME & PLUS (6-month trial subscription)
      • Audi Side Assist with Pre Sense Rear
      • Parking System Plus (front and rear acoustic sensors)
      • Full LED headlights
      • Aluminum exterior trim
    • Prestige (adds to Premium Plus):
      • Virtual Cockpit (12.3-inch digital instrument cluster)
      • MMI Navigation Plus with MMI Touch
      • Head-Up Display
      • Bang & Olufsen sound system
      • Adaptive Cruise Control with Stop & Go
      • Lane Keep Assist
      • Traffic Sign Recognition
      • Automatic high beams
  • Key features across trims:
    • Quattro all-wheel drive
    • Seven-speed S tronic dual-clutch automatic transmission
    • Sport-tuned suspension
    • Sport seats
    • Drive Select (adjustable driving modes)
    • Three-zone automatic climate control
    • Power sunroof
    • Apple CarPlay and Android Auto integration

2018 Audi S4 Specifications

Vehicle Information
Year 2018
Make Audi
Model S4
Trim -
Style -
Type Sedan
Category Compact Car
Manufacturing Details
Made In Germany
Manufacturing City INGOLSTADT
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating 5
Engine & Performance
Engine 3.0 L V-6
Engine Size 3L
Engine Cylinders 6
Transmission -
Transmission Type Automatic
Transmission Speeds -
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System Standard
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

Vehicle History Report

Vehicle
Specifications
Ownership
History
All History
Events
NMVTIS Title
History Check
Salvage/Rebuilt
Check
Accident
Check
Theft
Check
Open Lien
Check
Past Sale
Listings
Safety
Recalls
Odometer
Check
Market Price
Analysis

What Problems Does the 2018 Audi S4 Have?

Frequently reported problems for the 2018 Audi S4 are relatively limited, but some owners have reported issues with the infotainment system, including software glitches and connectivity problems. Some individuals have also experienced minor electrical issues affecting sensors or driver-assistance features. Oil consumption, while not widespread, has been reported by a small percentage of owners, so it’s crucial to monitor oil levels regularly.

Recalls for the 2018 S4, while not extensive, should be checked on the NHTSA website using the VIN to ensure any applicable recalls have been addressed by previous owners. Long-term reliability concerns generally revolve around the complexity of the vehicle's electronics and the potential for costly repairs on specialized components like the turbocharger and dual-clutch transmission as the car ages.

Specifically for the 2018 model year, there aren't significant deviations in reported problems compared to other B9 generation S4 models. However, preventative maintenance and diligent adherence to Audi's recommended service schedule are crucial for mitigating potential long-term reliability issues.

How long will the 2018 Audi S4 last?

With good maintenance, a 2018 Audi S4 can realistically achieve 150,000-200,000 miles or 10-15 years of service. Long-term durability hinges on consistent and thorough maintenance, particularly oil changes and transmission servicing. Weaknesses tend to emerge over time in areas like the suspension components (bushings, shocks), which may require replacement due to wear and tear. Also, the sophisticated electronics become more susceptible to failure as the vehicle ages. Proper care will extend its lifespan considerably. Turbocharger health should also be monitored.

What Technology & Safety Features are Included?

The 2018 Audi S4 boasts a strong suite of built-in tech features. Standard includes Audi's MMI infotainment system with a 7-inch display, Apple CarPlay and Android Auto. Optional upgrades include the Virtual Cockpit, a fully digital instrument cluster, and an 8.3-inch MMI screen with navigation.

Entertainment features include a standard 10-speaker audio system and optional Bang & Olufsen sound system. Driver-assistance features are plentiful, with standard Audi Pre Sense Basic and available features like adaptive cruise control with stop & go, lane keep assist, blind-spot monitoring, rear cross-traffic alert, and parking sensors.

Safety features include anti-lock brakes, stability control, airbags, and a rearview camera. The IIHS awarded the 2018 Audi A4 (upon which the S4 is based) a Top Safety Pick+ rating. NHTSA crash test ratings are also generally high. Optional features included a head-up display and traffic sign recognition. The blend of technology and safety makes it a well-rounded package.

What Colors Options are Available?

Exterior Colors
Brilliant Black
Ibis White
Florett Silver Metallic
Mythos Black Metallic
Navarra Blue Metallic
Tango Red Metallic
Daytona Gray Pearl Effect
Sakhir Gold Metallic
Interior Colors
Black w/Rock Gray Stitching
Magma Red w/Rock Gray Stitching
Nougat Brown w/Rock Gray Stitching

2018 Audi S4 Prices and Market Value

When new, the 2018 Audi S4 ranged from approximately $51,000 to $60,000 depending on trim and options. Current used market prices typically range from $25,000 to $35,000, depending on mileage, condition, and location. The S4 has experienced significant depreciation, common for luxury vehicles. Factors affecting resale value include mileage, maintenance history, accident history, and the presence of desirable options (e.g., Virtual Cockpit, Bang & Olufsen sound system). Lower mileage examples with clean titles command higher prices.

2018 Audi S4 Cost of Ownership

The 2018 Audi S4 is not the most economical vehicle to own. Insurance costs are higher than average due to its performance capabilities. Fuel costs are moderate, but premium fuel is required. Maintenance and repair costs can be significant, especially for specialized components. Expect higher long-term ownership costs compared to non-luxury vehicles. Regular maintenance is crucial to avoid costly repairs down the line. Budget accordingly for these factors when considering ownership.

2018 Audi S4 Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2018 Audi S4 Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Overall Side Star Rating Not Tested
Side Barrier Star Ratings Not Tested
Side Pole Star Rating Not Tested
Combined Side Barrier And Side Pole Star Ratings Not Tested
Rollover Resistance Star Rating

2018 Audi S4 Recalls & Defects

AIR Bags:sensor:occupant Classification
Recall date 2019-07-24
Recall no. 19v547000
Source NHTSA
Summary Volkswagen Group OF America, Inc. (Audi) IS Recalling Certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad Vehicles. Oxidation ON THE Passenger Occupant Detection System (Pods) Connecting Cable MAY Cause THE Software TO Misdiagnose A Malfunction and Disable THE Passenger AIR Bag.
Consequence A Disabled Passenger AIR BAG Increases THE Risk OF Injury IN THE Event OF A Crash.
Remedy Audi Will Notify Owners, and Dealers Will Install Cable Ties TO THE Harness, Free OF Charge. THE Recall Began September 9, 2019. Owners MAY Contact Volkswagen Customer Service AT 1-800-893-5298. Audi's Number FOR This Recall IS 74d9.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
AIR Bags:frontal:passenger Side:inflator Module
Recall date 2019-07-24
Recall no. 19v547000
Source NHTSA
Summary Volkswagen Group OF America, Inc. (Audi) IS Recalling Certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad Vehicles. Oxidation ON THE Passenger Occupant Detection System (Pods) Connecting Cable MAY Cause THE Software TO Misdiagnose A Malfunction and Disable THE Passenger AIR Bag.
Consequence A Disabled Passenger AIR BAG Increases THE Risk OF Injury IN THE Event OF A Crash.
Remedy Audi Will Notify Owners, and Dealers Will Install Cable Ties TO THE Harness, Free OF Charge. THE Recall Began September 9, 2019. Owners MAY Contact Volkswagen Customer Service AT 1-800-893-5298. Audi's Number FOR This Recall IS 74d9.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
Seats
Recall date 2021-11-10
Recall no. 21v874000
Source NHTSA
Summary Volkswagen Group OF America, Inc. (Audi) IS Recalling Certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback Vehicles. THE Cable Connecting THE Seat Heater TO THE Passenger Occupant Detection System (Pods) MAY Have A Contact Fault, Causing THE Software TO Misdiagnose A Malfunction and Disable THE Passenger AIR Bag.
Consequence A Disabled Passenger AIR BAG Increases THE Risk OF Injury IN THE Event OF A Crash.
Remedy Dealers Will Replace THE Connecting Cable and Either THE Heating MAT or Entire Seat Cover, Free OF Charge. Owner Notification Letters Were Mailed January 7, 2022. Owners MAY Contact Audi Customer Service AT 1-800-253-2834. Audi's Number FOR This Recall IS 74e3. This Recall IS AN Expansion OF Recall 19v-547 (74d9). Vehicles Previously Repaired Under 19v-547 Will Need TO Return FOR THE NEW Remedy.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.
AIR Bags:sensor:occupant Classification:front Passenger
Recall date 2021-11-10
Recall no. 21v874000
Source NHTSA
Summary Volkswagen Group OF America, Inc. (Audi) IS Recalling Certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback Vehicles. THE Cable Connecting THE Seat Heater TO THE Passenger Occupant Detection System (Pods) MAY Have A Contact Fault, Causing THE Software TO Misdiagnose A Malfunction and Disable THE Passenger AIR Bag.
Consequence A Disabled Passenger AIR BAG Increases THE Risk OF Injury IN THE Event OF A Crash.
Remedy Dealers Will Replace THE Connecting Cable and Either THE Heating MAT or Entire Seat Cover, Free OF Charge. Owner Notification Letters Were Mailed January 7, 2022. Owners MAY Contact Audi Customer Service AT 1-800-253-2834. Audi's Number FOR This Recall IS 74e3. This Recall IS AN Expansion OF Recall 19v-547 (74d9). Vehicles Previously Repaired Under 19v-547 Will Need TO Return FOR THE NEW Remedy.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.

2018 Audi S4 Insurance

Insurance for a 2018 Audi S4 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.

How Does the 2018 Audi S4 Compare to Other Sedan?

The 2018 Audi S4 competes with the BMW 340i/M340i, Mercedes-AMG C43, and Cadillac ATS-V (though ATS production ended in 2019). In terms of performance, the S4 is generally on par with the 340i and C43, offering comparable acceleration and handling. The ATS-V offers significantly more power. Feature-wise, the S4 is competitive, especially with its optional Virtual Cockpit. Reliability is a mixed bag; the S4 generally scores well, but some rivals might have slightly better track records.

In terms of price, the S4 sits within the same range as the 340i and C43 on the used market. The ATS-V tends to be pricier due to its higher performance. Alternatives? The BMW M340i is a strong contender, offering a similar blend of performance and luxury with potentially slightly better driving dynamics. The Genesis G70 3.3T offers comparable performance and features at a potentially lower price point, but with less brand cachet. For raw performance, the ATS-V is an excellent option. Ultimately, the best choice depends on individual priorities.

Ranks #927 Sedan

1 2023 Toyota Camry (5.0β˜…)
2 2023 Honda Accord (0.0β˜…)
3 2023 Lexus ES (0.0β˜…)
4 2024 Subaru Legacy (5.0β˜…)
5 2022 Mazda MX-30 (5.0β˜…)
6 2024 BMW M3 (0.0β˜…)
7 2023 Ford Mustang (5.0β˜…)
8 2023 Mercedes-Benz AMG GT (0.0β˜…)
9 2023 Audi A3 (0.0β˜…)
10 2023 Chevrolet Camaro (5.0β˜…)
11 2023 Hyundai Elantra Hybrid (0.0β˜…)
12 2023 Nissan Altima (4.0β˜…)
927 2018 Audi S4 (0.0β˜…)

Final Verdict: Is the 2018 Audi S4 a Good Sedan?

The 2018 Audi S4 is an excellent choice for those seeking a sporty and luxurious sedan with all-weather capability. It's ideal for individuals who appreciate performance and technology, and don't mind slightly higher running costs. It's generally worth buying used, as the depreciation makes it a more attractive value proposition than buying new. The Premium Plus trim offers a good balance of features and value, while the Prestige trim adds desirable tech like the Virtual Cockpit. Ensure a thorough pre-purchase inspection and review of maintenance records to mitigate potential risks. Look for models with complete service history and no accident damage for peace of mind.

2018 Audi S4 Owner Reviews

0.00
Consumer Rating, Based on 0 Consumer Reviews
Overall rating
Cancel
Thank You for Your Review!

We truly appreciate the time and effort you took to share your experience with us.

Uh oh!

Something went wrong, please try again later.

Author Image
Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.