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2018 Audi

S4

Auto (AM-S8), 6 cyl, 3.0 L, Turbo

Audi S4: best and worst years
2018 Audi S4 (photo 1 of 3)
PhotoAlexander MiglCC BY-SA 4.0Wikimedia Commons

Overview

Body
Compact CarsEPA, from EPA, last updated 6/11/2026
Drivetrain
All-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission
Automatic (AM-S8)EPA, from EPA, last updated 6/11/2026
Powertrain
GasEPA, from EPA, last updated 6/11/2026
Fuel
PremiumEPA, from EPA, last updated 6/11/2026

Engine & performance

Cyl
6EPA, from EPA, last updated 6/11/2026
Aspiration
TurbochargedEPA, from EPA, last updated 6/11/2026
Start-stop system
YesEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy
30 mpgEPA, from EPA, last updated 6/11/2026
MPG City
21 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb
24 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr
$3,200EPA, from EPA, last updated 6/11/2026
CO₂
374 g/miEPA, from EPA, last updated 6/11/2026
Eco Score
5/10EPA, from EPA, last updated 6/11/2026
Smog score
5/10
Elec. Range
0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified
No

Dimensions & capacity

Length
186 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Width
71 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Height
55 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Wheelbase
111 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Curb Weight
3,792 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Pass. Vol
90 ft³EPA, from EPA, last updated 6/11/2026
Cargo Vol
13 ft³EPA, from EPA, last updated 6/11/2026

Safety NHTSA, model year

Rollover rating
★★★★★
Stability control (ESC)
Standard
Forward-collision warning
Standard
Lane-departure warning
Optional
Recalls
2
Owner complaints
7

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.

Standard

Reported problems NHTSA owner complaints, model year

  • ENGINE44%
  • POWER TRAIN11%
  • SERVICE BRAKES11%
  • STRUCTURE11%
  • SUSPENSION11%
  • VEHICLE SPEED CONTROL11%

Source: NHTSA owner complaints, 9 total.

Audi S4: best and worst years

Warranty manufacturer terms, by make

Basic
4 yr / 50k mi
Powertrain
4 yr / 50k mi
Roadside assistance
4 yr
Maintenance
3 yr / 30k mi
EV battery
8 yr / 100k mi

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.