MOT failure rates

Audi A5 MOT failure rates: what to expect

What fails on a Audi A5 at MOT, how often, and what each fix typically costs.

Updated 4th September 2026 DVSA data: Across 125,503 recorded MOT tests, 19.4% failed.

Audi A5
Image via Wikipedia, CC-licensed.

The Audi A5 is a stylish and popular choice among UK drivers, but like any vehicle, it can face issues during its MOT. Common failures include problems with the suspension, brakes, and emissions system. Understanding these issues and their typical repair costs can help owners prepare for their MOT.

Suspension Issues

One of the most frequent reasons for an Audi A5 to fail its MOT is suspension problems. This can include worn-out shock absorbers or damaged suspension components.

Suspension failures can lead to poor handling and increased tyre wear, making it essential to address these issues promptly. Regular checks can help identify wear and tear before the MOT, potentially saving on repair costs.

Brake System Failures

Brakes are critical for safety, and any issues can result in an MOT failure. Common problems include worn brake pads, damaged discs, or leaks in the brake lines.

Failing brakes not only jeopardise safety but can also lead to more extensive damage if not addressed. Regular maintenance and inspections can help ensure that the braking system remains in good condition, reducing the likelihood of MOT failures.

Emissions System Problems

The emissions system is another area where the Audi A5 can encounter issues, particularly with the diesel models. Common failures include faulty catalytic converters or issues with the exhaust gas recirculation (EGR) valve.

With increasing scrutiny on emissions, ensuring your vehicle meets the required standards is crucial. Regular servicing and checks can help identify potential emissions issues before the MOT, saving time and money.

Tyre Condition

Tyres are a vital part of vehicle safety and are a common reason for MOT failures. Issues such as insufficient tread depth, uneven wear, or damage can lead to a failed test.

Maintaining proper tyre pressure and regularly inspecting tyres can help prolong their life and ensure safety. It is advisable to replace tyres that show signs of wear well before the MOT to avoid last-minute expenses.

Lighting and Electrical Failures

Another frequent MOT failure point for the Audi A5 is lighting and electrical systems. Common issues include blown bulbs, faulty indicators, or problems with the battery.

Ensuring all lights are functioning correctly before the MOT can save time and hassle. Regular checks of the electrical system can help prevent unexpected failures during the test.

Bodywork and Structural Integrity

While less common, bodywork and structural integrity issues can also lead to MOT failures. This can include rust, corrosion, or damage to the chassis.

Keeping the bodywork in good condition not only helps with MOT compliance but also maintains the vehicle’s resale value. Regular cleaning and protective treatments can help prevent rust and other issues from developing.

Audi A5 recall record

20 recalls have been issued for the Audi A5, between 2014 and 2025.

  1. Stop-drive TAKATA PSAN

    R/2025/387

    Issued 8 August 2025

    Urgent Safety Warning – Do Not Drive Your Vehicle Affected vehicles were originally allocated to or used for an extended period of time in a region with a climate zone considered to as HIGH RISK. Certain front airbags contain an ageing inflator propellant that may explode when deployed due to long-term exposure to heat and humidity. If the airbag inflator explodes metal fragments may be ejected causing life-threatening or fatal injuries to anyone in the vehicle.

    Remedy:Affected airbags will be be replaced. You can contact Audi's dedicated Takata Stop Drive helpline at 0113 526 9646 (MONDAY to FRIDAY 9:00AM to 5:00PM.

    Affects cars built Jul 2009 to Jul 2011

  2. Replacing rear seat backrest

    R/2025/110

    Issued 19 March 2025

    The rear seat backrest may not comply with crash safety requirements due to an inadequate weld joint. This means that there is an increased risk of rear seat passengers being injured in the event of a frontal collision if heavy loads are being transported in the luggage compartment. Until the repair has been performed we request that you do not transport any heavy loads in the luggage compartment.

    Remedy:For safety reasons it is necessary to replace the right rear seat backrest.

    Affects cars built Nov 2024 to Jan 2025

  3. If a front airbag is deployed it is possible that the gas generator housing in which the propellant is generated may burst on vehicles manufactured within a limited period.

    R/2023/052

    Issued 6 February 2023

    If a front airbag is deployed it is possible that the gas generator housing in which the propellant is generated may burst on vehicles manufactured within a limited period.

    Remedy:As a precautionary safety measure it is necessary to replace the airbag unit on the driver side.

    Affects cars built Sept 2009 to Mar 2010

  4. FOLLOWING A PREVIOUS CAMPAIGN THE TOE AND/OR CAMBER VALUES ON THE REAR AXLE MAY IN CERTAIN CIRCUMSTANCES INCORRECTLY BE CHANGED WITHOUT THIS BEING NOTICED

    R/2022/036

    Issued 14 February 2022

    Following a previous campaign the toe and/or camber values on the rear axle may in certain circumstances incorrectly be changed without this being noticed.

    Remedy:The wheel alignment must be checked and if necessary the suspension must be serviced on the affected vehicles.

    Affects cars built Nov 2019 to Feb 2021

16 older recalls not shown.

A recall applies to a build range, not to every car of this model. Check a registration to see whether one specific vehicle has an outstanding recall.

Audi A5 MOT record

From 125,503 recorded MOT tests, 19.4% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20232186.4%27,068 mi
20224,3439.3%27,504 mi
20215,19010.6%34,542 mi
20204,73511.6%41,507 mi
20199,71614.6%47,998 mi
201811,26016.9%57,267 mi
201713,66018.1%68,286 mi
20168,21318.3%77,264 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements31.6%
  2. A suspension pin, bush or joint excessively worn26.4%
  3. A tyre seriously damaged18.5%
  4. A spring or spring component fractured or seriously weakened12.0%
  5. a brake lining or pad worn below 1.5mm11.5%

Figures cover every Audi A5 tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

Audi A5 official figures

Median across 26 variants on sale, diesel, diesel electric, electricity / petrol, petrol, petrol electric.

Combined economy
41.5 mpg
WLTP median across variants
CO2 emissions
154.5 g/km
Sets the first-year tax rate

Official figures for new cars. Real economy varies with driving, load and conditions.

Frequently asked questions

What is the MOT requirement for an Audi A5 in the UK?

In the UK, an Audi A5 must have an MOT test when it is three years old and then annually thereafter. This ensures that the vehicle meets safety and environmental standards.

How can I check the MOT history of an Audi A5?

You can check the MOT history of an Audi A5 by visiting the official UK government website. You will need the vehicle's registration number and the make to access the details.

What common issues might an Audi A5 face during its MOT?

Common issues that may arise during an MOT for an Audi A5 include worn brake pads, faulty lights, and emissions failures. Regular maintenance can help prevent these problems.

What should I do if my Audi A5 fails its MOT?

If your Audi A5 fails its MOT, you will receive a list of issues that need addressing. You can either repair the vehicle and retest it or appeal the decision if you believe it was incorrect.

Can I drive my Audi A5 if it has an expired MOT?

No, you cannot legally drive your Audi A5 if it has an expired MOT unless you are taking it to a pre-booked MOT appointment. Driving without a valid MOT can result in fines.

How can I prepare my Audi A5 for its MOT?

To prepare your Audi A5 for its MOT, check the lights, tyres, and brakes, and ensure that all fluids are topped up. A thorough inspection can help identify potential issues before the test.

Sources