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2020 Audi

S4

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

Audi S4: best and worst years
2020 Audi S4 (photo 1 of 6)

Photo may show a different model year; you're viewing the 2020.

PhotoAlexander MiglCC BY-SA 4.0via Wikimedia Commons

Overview

Transmission
Automatic (S8)EPA, from EPA, last updated 6/22/2026

Engine & performance

Power to weight
0.091 hp/lb

Efficiency

Smog score
5/10
SmartWay certified
No

Dimensions & capacity

GVWR class
Class 1D (5,001 to 6,000 lb)NHTSA vPIC, from NHTSA vPIC, last updated 10/13/2026

Safety NHTSA record NHTSA, model year

Rollover rating
★★★★★
Stability control (ESC)
Standard
Forward-collision warning
Standard
Lane-departure warning
Optional
Recalls
3
Owner complaints
16 See on NHTSA

Feature availability

Cameras & visibility

  • Backup camera
    Standard

Driver assist

  • Adaptive cruise control
    Optional
  • Automatic emergency brakingPart of Audi pre sense.
    Standard
  • Blind-spot monitor
    Standard
  • Lane-keeping assist
    Optional

Convenience

  • Push-button start
    Standard

Exterior

  • Adaptive headlights
    Standard

Reported problems NHTSA record NHTSA owner complaints, model year

  • ELECTRICAL SYSTEM45%
  • BACK OVER PREVENTION29%
  • UNKNOWN OR OTHER16%
  • FORWARD COLLISION AVOIDANCE3%
  • LANE DEPARTURE3%
  • VISIBILITY/WIPER3%

Source: NHTSA owner complaints, 31 total.

Audi S4: best and worst years

Known issues manufacturer service bulletins, model year

837 service bulletins filed with NHTSA for this model year

  • May 27, 2026POWER TRAINTSB_2059057_14

    This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.

  • May 26, 2026UNKNOWN OR OTHERAOS-26-25

    This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: The ODIS Audi Brand update 2.41.1 is setting a ODS5003E error code when you perform the 90TV SVM flash.

  • May 22, 2026ELECTRICAL SYSTEMTSB_2080517_4

    This bulletin provides informaiotn when the starter battery is discharged or defective.

  • May 15, 2026VISIBILITY/WIPERTSB_2067557_2

    This bulletin provides informaiton when the windscreen/rear window washer pump is not working (B126101, B126113).

  • May 6, 2026POWER TRAINTSB_2074808_4

    The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Added Model years

  • May 5, 2026STRUCTURE:BODYTSB_2074721_3

    This bulletin provides information when there is noise from the backrest of the front seat.

  • Apr 30, 2026ELECTRICAL SYSTEMTSB_2080517_3

    This bulletin provides informaiotn when the starter battery is discharged or defective.

  • Apr 30, 2026UNKNOWN OR OTHERTSB_2022032_12

    This bulletin provides diagnostic information for the vehicle locking system.

  • and 829 more

Source: NHTSA manufacturer communications (technical service bulletins).

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

Source: media.audiusa.com as of 2026-06

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.