2018 Audi S4 Report
Known issues, recalls, running costs, and what to check before you buy.

Overall Score
Key Takeaways
- The 2018 Audi S4 has a 'Below Average' reliability verdict, primarily due to concerns with the passenger airbag system.
- Four recalls were issued, with a focus on the Passenger Occupant Detection System (PODS) and its wiring. Confirm recall 21V874000 (74E3) has been properly addressed.
- While there are zero owner complaints logged, a high volume of Technical Service Bulletins (TSBs) suggests underlying complexities or potential issues.
- The 3.0-liter V6 engine requires premium fuel, contributing to higher running costs.
2018 Audi S4
Critical Failure Risk
Recalls indicate potential oxidation and contact faults in the PODS connecting cable, which can disable the passenger airbag. This issue is not strictly mileage-dependent and relates to component design and aging.
Early detection can help you avoid a $500-$1,500 repair.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
Reliability
Practicality
The score is mainly limited by high fuel consumption.
Who This Car Is For
Best for
Drivers seeking a blend of performance and all-weather capability.
+2 more buyer-fit notes in the full report
Avoid if
Budget-conscious buyers concerned about potential repair costs.
+2 more buyer-fit warnings in the full report
2018 Audi S4 Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 Audi S4.
Vehicle Specs
- Fuel Type
- Premium
- Seating Capacity
- 5
- Transmission
- Automatic (AM-S8)
- Drivetrain
- All-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 24
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Most Common Issues
1. Passenger Occupant Detection System (PODS) Electrical Issues
Most reportedUsage data observed
2. High Volume of Technical Service Bulletins (TSBs)
Usage data observed
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
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FAQ
Is the 2018 Audi S4 reliable?
The CarFocal Reliability Score for the 2018 Audi S4 is 8.2/10. Reliability score is 8.2/10. NHTSA recalls: 4. Owner complaints: 0.
How practical is the 2018 Audi S4 for daily use?
Practicality score is 4.9/10. The score is mainly limited by high fuel consumption. EPA combined economy is 24 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 368 litres.
What is the overall score for the 2018 Audi S4?
The CarFocal Overall Score for the 2018 Audi S4 is 6.8/10. Overall score is 6.8/10 (Good). Confidence 55%. Maintenance 7.5/10. Practicality 4.9/10.
What does it cost to own and maintain a 2018 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 - Brake System Inspection at 10,000 miles. Estimated first-year maintenance: $1,000 - $1,500. Repair prediction highlight: Passenger Occupant Detection System (PODS) Electrical System (typical at 50,000 miles, estimated cost Min: $500 • Max: $1,500).
What is the MSRP range for the 2018 Audi S4?
Base MSRP is $55,800.
What engine is in the 2018 Audi S4?
Engine specs list 6 • 3.0.
What transmission does the 2018 Audi S4 use?
According to CarFocal's specs for the 2018 Audi S4, transmission is Automatic (AM-S8). The paired drivetrain is All-Wheel Drive.
Does the 2018 S4 require Premium gas?
Manufacturer fuel recommendation: Premium.
What is the combined EPA MPG for the 2018 Audi S4?
EPA combined estimate is 24 MPG.
What driver assistance and safety features are available on the 2018 Audi S4?
11 standard and 3 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
How many people fit in a 2018 Audi S4?
According to CarFocal's specs for the 2018 Audi S4, seating capacity is 5.
What body style is the 2018 Audi S4?
According to CarFocal's specs for the 2018 Audi S4, body style is sedan.
What drivetrain does the 2018 Audi S4 use?
According to CarFocal's specs for the 2018 Audi S4, drivetrain is All-Wheel Drive. Transmission is Automatic (AM-S8).
What are the NHTSA safety ratings for the 2018 Audi S4?
NHTSA ratings: Rollover 5/5.
Are there open safety recalls on the 2018 Audi S4?
This model year has 4 official safety campaigns listed.