What are the most common problems with the 2015 Audi S6?

The **turbocharger oil supply strainer** is a critical component prone to blockage, potentially leading to engine damage. Thorough inspection is paramount.

How many recalls does the 2015 Audi S6 have?

The 2015 Audi S6 currently has 2 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2015 Audi S6 a good buy used?

Verdict: Proceed with caution. The **turbocharger oil supply strainer** is a critical component prone to blockage, potentially leading to engine damage. Thorough inspection is paramount. Two critical recalls were issued: one for the **passenger occupant detection system** affecting airbag deployment, and another for the **turbocharger oil strainer**. Confirm these have been properly remedied. With 353 TSBs, expect a higher-than-average number of potential service needs. A comprehensive pre-purchase inspection is essential. The 4.0L V8 engine requires premium fuel, contributing to higher running costs. Despite a perfect NHTSA safety rating, the underlying reliability concerns warrant a cautious approach to purchasing. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2015 Audi S6?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2015 Audi S6.

2015 Audi S6 Report

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

Updated Jun 2, 2026Ryan Davis2 Critical Recalls

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

The turbocharger oil supply strainer is a critical component prone to blockage, potentially leading to engine damage. Thorough inspection is paramount.
Two critical recalls were issued: one for the passenger occupant detection system affecting airbag deployment, and another for the turbocharger oil strainer. Confirm these have been properly remedied.
With 353 TSBs, expect a higher-than-average number of potential service needs. A comprehensive pre-purchase inspection is essential.
The 4.0L V8 engine requires premium fuel, contributing to higher running costs.

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Overview

2015 Audi S6

The 2015 Audi S6 is a potent luxury sedan that blends potent V8 power with sophisticated all-wheel drive. While it delivers exhilarating performance, used car shoppers must be aware of its technical complexities and potential ownership challenges. Two critical recalls were issued, one affecting the airbag system and another concerning the turbocharger's lubrication. A high volume of Technical Service Bulletins (TSBs) also suggests a complex vehicle with numerous potential service points. Despite a perfect NHTSA safety score, the reliability assessment indicates potential for significant mechanical issues, particularly with the powertrain.

Critical Failure Risk

The turbocharger oil supply strainer can become blocked, leading to lubrication starvation for the turbocharger bearings. This is a critical engine failure risk.

Early detection can help you avoid a $1,500-$3,000 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls2

Service Bulletins0

Full Recall History →

Owner Complaints

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Performance enthusiasts seeking a powerful, all-weather luxury sedan at a competitive used price.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers or those seeking trouble-free daily transportation.

+2 more buyer-fit warnings in the full report

2015 Audi S6 Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Premium
Transmission: Automatic (AM-S7)
Drivetrain: All-Wheel Drive
Body Style: Sedan
EPA Combined MPG: 20

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Most Common Issues

1. Turbocharger Oil Supply Strainer Blockage

Most reported

Usage data observed

2. Passenger Occupant Detection System (PODS) Malfunction

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 - Brake System Inspection

Est. shop cost: $150 - $250

10,000 mi

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

Full pre-purchase inspection checklist

Complete maintenance schedule (4 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

2 recall campaign details & remedy notes

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FAQ

Is the 2015 Audi S6 reliable?

The CarFocal Reliability Score for the 2015 Audi S6 is 8.6/10. Reliability score is 8.6/10. NHTSA recalls: 2. Owner complaints: 0.

How practical is the 2015 Audi S6 for daily use?

Practicality score is 5.0/10. The score is mainly limited by high fuel consumption. EPA combined economy is 20 MPG.

What is the overall score for the 2015 Audi S6?

The CarFocal Overall Score for the 2015 Audi S6 is 6.9/10. Overall score is 6.9/10 (Good). Confidence 85%. Maintenance 7.3/10. Practicality 5.0/10.

What does it cost to own and maintain a 2015 Audi S6?

Based on Carfocal's data, First listed service: - Oil Change (5W-40 Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection at 10,000 miles. Estimated first-year maintenance: $1,000 - $1,500. Repair prediction highlight: Turbocharger Oil Supply Strainer (typical at 75,000 miles, estimated cost Min: $1,500 • Max: $3,000+).

What engine is in the 2015 Audi S6?

Engine specs list 8 • 4.0.

What transmission does the 2015 Audi S6 use?

According to CarFocal's specs for the 2015 Audi S6, transmission is Automatic (AM-S7). The paired drivetrain is All-Wheel Drive.

Does the 2015 S6 require Premium gas?

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2015 Audi S6?

EPA combined estimate is 20 MPG.

What driver assistance and safety features are available on the 2015 Audi S6?

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

What body style is the 2015 Audi S6?

According to CarFocal's specs for the 2015 Audi S6, body style is sedan.

What drivetrain does the 2015 Audi S6 use?

According to CarFocal's specs for the 2015 Audi S6, drivetrain is All-Wheel Drive. Transmission is Automatic (AM-S7).

What are the NHTSA safety ratings for the 2015 Audi S6?

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

Are there open safety recalls on the 2015 Audi S6?

This model year has 2 official safety campaigns listed.