CARFOCALvehicle research
Research CarsCompareRankingsArticles
  1. Home›
  2. Manufacturers›
  3. Audi›
  4. S3›
  5. 2018

2018 Audi S3 Report

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

Updated Jun 2, 2026·Ethan Miller·2 Critical Recalls
2018 Audi S3 Report

Overall Score

7.6/ 10
Our Verdict
Proceed with caution

Key Takeaways

  • The 2018 Audi S3 has a 'Below Average' reliability verdict, primarily due to a critical safety recall impacting the passenger airbag system.
  • With 179 TSBs, expect potential for numerous, though typically less severe, issues that may require attention.
  • The vehicle achieved a 5-star overall NHTSA safety rating, indicating strong performance in crash tests.
  • Fuel economy is respectable for its performance class, achieving a combined 25 MPG.
See the 5 checks before you buyFree • Takes 20s • Saves Thousands $
OverviewWho This Car Is ForReliability & ProblemsVehicle SpecsUnlock Full ReportFAQ
Overview

2018 Audi S3

The 2018 Audi S3 presents a compelling package of performance and premium appointments, wrapped in a compact sedan form. Its all-wheel-drive system and potent turbocharged engine deliver an engaging driving experience. However, used car shoppers must weigh this against a reliability record that warrants caution, marked by a significant number of Technical Service Bulletins (TSBs) and a critical safety recall concerning the passenger airbag system. While it boasts excellent safety ratings, potential buyers should be prepared for diligent pre-purchase inspections.

Critical Failure Risk

The Passenger Occupant Detection System (PODS) sensor mat and control module can malfunction, leading to the passenger airbag deactivating even when an occupant is present. This is a critical safety recall.

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

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls2
Service Bulletins0
Full Recall History →

Owner Complaints

0

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency
Combined
25
MPG
City
22
MPG
Highway
28
MPG
Full Vehicle Specifications ↓

Reliability

8.4/ 10

Practicality

4.5/ 10

The score is mainly limited by small boot.

Buyer Fit

Who This Car Is For

Best for

Enthusiasts seeking a potent and agile compact sedan with all-wheel drive.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers who prioritize low running costs and minimal repair risk.

+2 more buyer-fit warnings in the full report

2018 Audi S3 Reliability Analysis

Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 Audi S3.

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

Vehicle Specs

Fuel Type
Premium
Seating Capacity
5
Transmission
Automatic (AM-S7)
Drivetrain
All-Wheel Drive
Body Style
Sedan
EPA Combined MPG
25

CarFocal account required

See the full 2018 Audi S3 buyer report before you decide

Unlock the complete checklist, maintenance outlook, and buyer verdict in one place.

Most Common Issues

1. Passenger Occupant Detection System (PODS) Malfunction

Most reported

Usage data observed

2. High Volume of Technical Service Bulletins (TSBs)

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 - Brake 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 (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
2 recall campaign details & remedy notes
Create free account

Free • Takes 20 seconds • Saves Thousands $

Already have an account? Log in

FAQ

FAQ

Is the 2018 Audi S3 reliable?▾

The CarFocal Reliability Score for the 2018 Audi S3 is 8.4/10. Reliability score is 8.4/10. NHTSA recalls: 2. Owner complaints: 0.

How practical is the 2018 Audi S3 for daily use?▾

Practicality score is 4.5/10. The score is mainly limited by small boot. EPA combined economy is 25 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 284 litres.

What is the overall score for the 2018 Audi S3?▾

The CarFocal Overall Score for the 2018 Audi S3 is 7.6/10. Overall score is 7.6/10 (Good). Confidence 85%. Maintenance 8.0/10. Practicality 4.5/10.

What does it cost to own and maintain a 2018 Audi S3?▾

Based on Carfocal's data, First listed service: - Oil Change (5W-40 Synthetic) (Parts: 5W-40 Synthetic Oil, Oil Filter) - Tire Rotation - Brake Inspection at 10,000 miles. Estimated first-year maintenance: $500 - $800. Repair prediction highlight: Passenger Occupant Detection System (PODS) (typical at 40,000 miles, estimated cost Min: $500 • Max: $1,000).

What is the MSRP range for the 2018 Audi S3?▾

Base MSRP is $48,950.

What engine is in the 2018 Audi S3?▾

Engine specs list 4 • 2.0.

What transmission does the 2018 Audi S3 use?▾

According to CarFocal's specs for the 2018 Audi S3, transmission is Automatic (AM-S7). The paired drivetrain is All-Wheel Drive.

Does the 2018 S3 require Premium gas?▾

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2018 Audi S3?▾

EPA combined estimate is 25 MPG.

What driver assistance and safety features are available on the 2018 Audi S3?▾

14 standard driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2018 Audi S3?▾

According to CarFocal's specs for the 2018 Audi S3, seating capacity is 5.

What body style is the 2018 Audi S3?▾

According to CarFocal's specs for the 2018 Audi S3, body style is sedan.

What drivetrain does the 2018 Audi S3 use?▾

According to CarFocal's specs for the 2018 Audi S3, drivetrain is All-Wheel Drive. Transmission is Automatic (AM-S7).

What are the NHTSA safety ratings for the 2018 Audi S3?▾

NHTSA ratings: Overall 5/5 • Frontal 4/5 • Side 5/5 • Rollover 4/5.

Are there open safety recalls on the 2018 Audi S3?▾

This model year has 2 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

We may earn a commission if you buy parts through our links. Learn more.