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2015 Audi S4 Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jun 2, 2026·Ethan Miller·1 Critical Recall

Overall Score

7.0/ 10
Our Verdict
Proceed with caution

Key Takeaways

  • The 2015 Audi S4 is a capable performance sedan with a potent supercharged V6 and all-wheel drive.
  • It boasts excellent safety ratings, achieving 5 stars in all NHTSA crash tests.
  • Reliability is rated 'Average', primarily due to a high TSB count and a critical airbag system recall.
  • Buyers must verify that the airbag control module software recall has been completed.
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OverviewWho This Car Is ForReliability & ProblemsVehicle SpecsUnlock Full ReportFAQ
Overview

2015 Audi S4

The 2015 Audi S4 presents a compelling blend of potent performance and everyday usability, wrapped in a sophisticated package. Powered by a 3.0-liter supercharged V6 engine paired with a precise manual transmission and Audi's renowned Quattro all-wheel-drive system, it delivers exhilarating acceleration and confident handling. Its safety ratings are stellar, earning top marks across the board. However, potential buyers must be aware of its 'Average' reliability verdict, influenced by a significant number of Technical Service Bulletins and a critical safety recall concerning the airbag control module software. While no consumer complaints were logged in the provided data, the sheer volume of TSBs suggests other potential, less critical, but numerous issues may exist across various vehicle systems.

Critical Failure Risk

The belt driving the supercharger can degrade over time, leading to a loss of boost and power. This is a common wear item on supercharged engines.

Early detection can help you avoid a $500-$1,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls1
Service Bulletins0
Full Recall History →

Owner Complaints

0

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency
Combined
20
MPG
City
17
MPG
Highway
26
MPG
Full Vehicle Specifications ↓

Reliability

8.8/ 10

Practicality

3.7/ 10

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Driving enthusiasts who prioritize performance and handling over long-term, worry-free ownership.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers seeking minimal running costs and predictable reliability.

+2 more buyer-fit warnings in the full report

2015 Audi S4 Reliability Analysis

Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2015 Audi S4.

  • Recall TimelineOfficial safety notices
  • Owner ComplaintsReal driver reports
  • Failure AnalysisKnown part defects
Specs

Vehicle Specs

Fuel Type
Premium
Transmission
Manual 6-spd
Drivetrain
All-Wheel Drive
Body Style
Sedan
EPA Combined MPG
20

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Most Common Issues

1. Supercharger Belt Failure

Most reported

Usage data observed

2. PCV Valve Failure

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-40 Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection

Est. shop cost: $150 - $250

5,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist
Complete maintenance schedule (6 service intervals)
Repair forecasts with mileage and cost context
Full buyer-fit guidance and who should avoid it
Full specs and trim-level context
1 recall campaign details & remedy notes
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FAQ

FAQ

Is the 2015 Audi S4 reliable?▾

The CarFocal Reliability Score for the 2015 Audi S4 is 8.8/10. Reliability score is 8.8/10. NHTSA recalls: 1. Owner complaints: 0.

How practical is the 2015 Audi S4 for daily use?▾

Practicality score is 3.7/10. The score is mainly limited by high fuel consumption. EPA combined economy is 20 MPG. 4 passenger doors are listed.

What is the overall score for the 2015 Audi S4?▾

The CarFocal Overall Score for the 2015 Audi S4 is 7.0/10. Overall score is 7.0/10 (Good). Confidence 85%. Maintenance 8.3/10. Practicality 3.7/10.

What does it cost to own and maintain a 2015 Audi S4?▾

Based on Carfocal's data, First listed service: - Oil Change (5W-40 Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection at 5,000 miles. Estimated first-year maintenance: $600 - $1,000. Repair prediction highlight: Supercharger Belt (typical at 60,000 miles, estimated cost Min: $400 • Max: $700).

What engine is in the 2015 Audi S4?▾

Engine specs list 6 • 3.0.

What transmission does the 2015 Audi S4 use?▾

According to CarFocal's specs for the 2015 Audi S4, transmission is Manual 6-spd. The paired drivetrain is All-Wheel Drive.

Does the 2015 S4 require Premium gas?▾

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2015 Audi S4?▾

EPA combined estimate is 20 MPG.

What driver assistance and safety features are available on the 2015 Audi S4?▾

1 standard driver assistance features. Key features include Tire Pressure Monitoring System.

What body style is the 2015 Audi S4?▾

According to CarFocal's specs for the 2015 Audi S4, body style is sedan.

What drivetrain does the 2015 Audi S4 use?▾

According to CarFocal's specs for the 2015 Audi S4, drivetrain is All-Wheel Drive. Transmission is Manual 6-spd.

What are the NHTSA safety ratings for the 2015 Audi S4?▾

NHTSA ratings: Overall 5/5 • Frontal 5/5 • Side 5/5 • Rollover 5/5.

Are there open safety recalls on the 2015 Audi S4?▾

This model year has 1 official safety campaigns listed.

Start Here

Maintenance guide

Costs + intervals

Recall report

Campaigns + remedy notes

Owner complaints

Issue volume + categories

In this guide

  1. 01Overview
  2. 02Who This Car Is For
  3. 03Reliability & Problems
  4. 04Vehicle Specs
  5. 05Unlock Full Report
  6. 06FAQ

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