Audi S4 MOT Check

MOT pass rates, common failures, and reliability data for the Audi S4. Check any S4 by registration number below.

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85.9%

Avg Pass Rate

-3.8%

vs Audi Avg

Year Ranges

Excellent

Reliability

Audi S4 — MOT Reliability Overview

The Audi S4 has an average MOT pass rate of 85.9%, which is 3.8 percentage points below the Audi brand average of 89.7%. This is a strong result, indicating that the S4 is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

The most common reasons a Audi S4 fails its MOT are a suspension pin, bush or joint excessively worn, tyre tread depth not in accordance with the requirements. If you are preparing your S4 for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

Before buying a used Audi S4, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the Audi S4 performs at MOT across different model years.

2017

Based on 83 vehicles

94.0%Excellent

Audi average: 89.7%

Dangerous Defects

4.5%

Retest Rate

4.5%

2015

Based on 56 vehicles

92.9%Excellent

Audi average: 89.7%

Dangerous Defects

5.4%

Retest Rate

5.4%

2014

Based on 215 vehicles

83.3%Good

Audi average: 89.7%

Dangerous Defects

3.6%

Retest Rate

23.2%

Mileage at 10yr

136k mi

2013

Based on 234 vehicles

93.6%Excellent

Audi average: 89.7%

Dangerous Defects

2.2%

Retest Rate

6.2%

Mileage at 10yr

149k mi

2012

Based on 111 vehicles

88.3%Excellent

Audi average: 89.7%

Dangerous Defects

2.8%

Retest Rate

8.3%

2011

Based on 373 vehicles

83.6%Good

Audi average: 89.7%

Dangerous Defects

4.5%

Retest Rate

14.5%

2010

Based on 376 vehicles

85.9%Excellent

Audi average: 89.7%

Dangerous Defects

3.6%

Retest Rate

12.1%

2009

Based on 303 vehicles

88.4%Excellent

Audi average: 89.7%

Dangerous Defects

2.5%

Retest Rate

8.0%

2008

Based on 41 vehicles

82.9%Good

Audi average: 89.7%

Dangerous Defects

0.0%

Retest Rate

8.7%

2007

Based on 178 vehicles

80.3%Good

Audi average: 89.7%

Dangerous Defects

3.9%

Retest Rate

22.3%

2006

Based on 311 vehicles

78.1%Good

Audi average: 89.7%

Dangerous Defects

3.9%

Retest Rate

27.7%

2005

Based on 232 vehicles

77.2%Good

Audi average: 89.7%

Dangerous Defects

4.5%

Retest Rate

27.1%

2004

Based on 294 vehicles

78.9%Good

Audi average: 89.7%

Dangerous Defects

1.1%

Retest Rate

13.5%

2003

Based on 154 vehicles

96.1%Excellent

Audi average: 89.7%

Mileage at 10yr

170k mi

2000

Based on 95 vehicles

84.2%Good

Audi average: 89.7%

Dangerous Defects

3.6%

Retest Rate

5.4%

1999

Based on 181 vehicles

83.4%Good

Audi average: 89.7%

Dangerous Defects

0.8%

Retest Rate

13.6%

1998

Based on 33 vehicles

90.9%Excellent

Audi average: 89.7%

Dangerous Defects

4.3%

0

Based on 1,294 vehicles

84.2%Good

Audi average: 89.7%

Mileage at 5yr

98k mi

Top MOT Failures — Audi S4

The most common reasons a Audi S4 fails its MOT, aggregated across all year ranges.

A suspension pin, bush or joint excessively worn

5.1%

Tyre tread depth not in accordance with the requirements

3.6%

Audi S4 Common Faults & Repair Costs

Where Failures Occur

The areas of the vehicle most commonly flagged during MOT inspections.

Rear Offside

2.4%

Rear Nearside

2.4%

Front Nearside

2.4%

Other Audi Models

Compare MOT reliability across Audi models.

Audi A5 S Ln Blk Ed 35 Tfsi Mhev Sa

90.3% pass rate

Audi A6 Aroad Sport 55tfsi Mhev Q A

89.5% pass rate

Audi All Road Avant

82.6% pass rate

Audi Rs 4 Vorsprung Tfsi Quattro A

94.7% pass rate

Audi E-tron S Quattro

82.6% pass rate

Audi TT

69.5% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for Audi S4

Audi S4 — Frequently Asked Questions

Common questions about the Audi S4 MOT and reliability.

What is the MOT pass rate for the Audi S4?

The average MOT pass rate for the Audi S4 is 85.9% compared to the Audi average of 89.7%. Pass rates vary by year — check the year-by-year breakdown on this page for details.

What are the most common MOT failures on a Audi S4?

The most common MOT failures on the Audi S4 are: A suspension pin, bush or joint excessively worn (5.1%), Tyre tread depth not in accordance with the requirements (3.6%). These are the components most likely to cause an MOT failure.

Is the Audi S4 reliable?

With an average MOT pass rate of 85.9%, the Audi S4 is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.

How do I check the MOT history of a Audi S4?

Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.

What mileage should I expect on a Audi S4?

Typical mileage for the Audi S4: 135,635 miles at 10 years. Use these benchmarks when evaluating a used S4 to spot vehicles with unusually high or low mileage.

Check Your Audi S4's MOT History

Enter the registration number for the full MOT history — free and instant.