2018 Audi S6 Report
Known issues, recalls, running costs, and what to check before you buy.

Overall Score
Key Takeaways
- The 4.0L twin-turbo V8 engine produces 450 horsepower and 406 lb-ft of torque, offering exhilarating acceleration.
- Quattro all-wheel drive provides excellent traction and stability in various conditions.
- The vehicle achieved a 5-star overall safety rating from NHTSA.
- A critical recall for the airbag system's occupant classification sensor requires verification of completion.
2018 Audi S6
Critical Failure Risk
A recall addresses potential issues with the Passenger Occupant Detection System (PODS) due to wear on the seat-sensing mat. This can lead to incorrect air bag deployment or non-deployment.
Early detection can help you avoid a $500-$1,500 repair.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
- Horsepower
- 450HP
- Torque
- 406 lb–ft @ 1400 rpmLB-FT
Reliability
Practicality
The score is mainly limited by high fuel consumption.
Who This Car Is For
Best for
Enthusiasts seeking a powerful, all-weather performance sedan with a premium badge.
+2 more buyer-fit notes in the full report
Avoid if
Budget-conscious buyers expecting minimal repair costs.
+2 more buyer-fit warnings in the full report
2018 Audi S6 Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 Audi S6.
Vehicle Specs
- Fuel Type
- Premium
- Seating Capacity
- 5
- Horsepower
- 450 hp
- Torque
- 406 lb-ft @ 1400 rpm
- Transmission
- Automatic (AM-S7)
- Drivetrain
- All-Wheel Drive
- Body Style
- Sedan
- MSRP Range
- $71,900 - $74,400
- EPA Combined MPG
- 18
CarFocal account required
See the full 2018 Audi S6 buyer report before you decide
Most Common Issues
1. Air Bag System Malfunction (Occupant Classification Sensor)
Most reportedUsage data observed
2. Oil Leaks
Usage data observed
First Service Interval
- Synthetic Oil Change and Filter Replacement (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Check (Coolant, Brake, Power Steering, Washer)
Est. shop cost: $150 - $250
Unlock the full maintenance guide for every scheduled service interval and cost forecast.
Free • Takes 20 seconds • Saves Thousands $
Already have an account? Log in
FAQ
Is the 2018 Audi S6 reliable?
The CarFocal Reliability Score for the 2018 Audi S6 is 8.6/10. Reliability score is 8.6/10. NHTSA recalls: 1. Owner complaints: 0.
How practical is the 2018 Audi S6 for daily use?
Practicality score is 4.6/10. The score is mainly limited by high fuel consumption. EPA combined economy is 18 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 399 litres.
What is the overall score for the 2018 Audi S6?
The CarFocal Overall Score for the 2018 Audi S6 is 6.9/10. Overall score is 6.9/10 (Good). Confidence 85%. Maintenance 7.2/10. Practicality 4.6/10.
What does it cost to own and maintain a 2018 Audi S6?
Based on Carfocal's data, First listed service: - Synthetic Oil Change and Filter Replacement (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Check (Coolant, Brake, Power Steering, Washer) at 10,000 miles. Estimated first-year maintenance: $1,000 - $1,500. Repair prediction highlight: Occupant Classification System Sensor (typical at 60,000 miles, estimated cost Min: $300 • Max: $700).
What is the MSRP range for the 2018 Audi S6?
MSRP range is $71,900 - $74,400.
What engine is in the 2018 Audi S6?
Engine specs list V8 • 8 • 4.0. Output is 450 hp • 406 lb-ft @ 1400 rpm.
What transmission does the 2018 Audi S6 use?
According to CarFocal's specs for the 2018 Audi S6, transmission is Automatic (AM-S7). The paired drivetrain is All-Wheel Drive.
Does the 2018 S6 require Premium gas?
Manufacturer fuel recommendation: Premium.
What is the combined EPA MPG for the 2018 Audi S6?
EPA combined estimate is 18 MPG.
What driver assistance and safety features are available on the 2018 Audi S6?
9 standard and 3 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
What is the fuel economy range for the 2018 Audi S6?
According to CarFocal's specs for the 2018 Audi S6, fuel economy range is 16-24 mpg combined.
How many people fit in a 2018 Audi S6?
According to CarFocal's specs for the 2018 Audi S6, seating capacity is 5.
What body style is the 2018 Audi S6?
According to CarFocal's specs for the 2018 Audi S6, body style is sedan.
What drivetrain does the 2018 Audi S6 use?
According to CarFocal's specs for the 2018 Audi S6, drivetrain is All-Wheel Drive. Transmission is Automatic (AM-S7).
What are the NHTSA safety ratings for the 2018 Audi S6?
NHTSA ratings: Overall 5/5 • Frontal 5/5 • Side 5/5 • Rollover 5/5.
Are there open safety recalls on the 2018 Audi S6?
This model year has 1 official safety campaigns listed.
Should buyers consider alternatives to the 2018 Audi S6?
Alternative listed in this guide: 2018 BMW M3.