Audi e-tron MOT failure rates: what to expect
What fails on a Audi e-tron at MOT, how often, and what each fix typically costs.

The Audi e-tron is a premium electric SUV that has gained popularity for its performance and luxury. However, like any vehicle, it can encounter issues that may lead to MOT failures. Common problems include issues with lights, brakes, and tyres, with repair costs varying based on the specific fault.
Lighting Issues
One of the most frequent causes of MOT failure for the Audi e-tron is lighting problems. This includes issues with headlights, brake lights, and indicators not functioning correctly. The DVSA MOT data indicates that lighting failures are among the top reasons for MOT rejections.
Fixing lighting issues typically involves replacing bulbs or repairing wiring. The cost for replacing a bulb can range from £10 to £30, while more complex electrical repairs may cost upwards of £100, depending on the extent of the problem. Regular checks of all lights before the MOT can help avoid these common failures.
Brake System Failures
Another significant area where the Audi e-tron may fail its MOT is the braking system. Problems can arise from worn brake pads, damaged discs, or issues with the brake fluid. The braking system is crucial for safety, and any faults will lead to an automatic failure.
Replacing brake pads usually costs between £100 and £300, depending on whether you choose OEM or aftermarket parts. If brake discs also need replacing, the total cost can rise to £500 or more. Regular maintenance and checks of the braking system can help ensure it remains in good condition.
Tyre Condition
Tyres are critical for vehicle safety and performance, and they are a common reason for MOT failures in the Audi e-tron. Issues such as insufficient tread depth, uneven wear, or damage can lead to rejection. The legal minimum tread depth in the UK is 1.6mm, and anything below this will fail the MOT.
Replacing tyres can vary significantly in cost, ranging from £80 to £200 per tyre, depending on the brand and specifications. Regularly checking tyre pressure and tread depth can help prevent unexpected costs and ensure safety on the road.
Suspension Problems
Suspension issues are another area where the Audi e-tron may face MOT failures. Problems with shock absorbers or springs can lead to poor handling and increased stopping distances. The Honest John reliability index indicates that suspension components can wear out over time, particularly in electric vehicles due to their weight.
Repairing or replacing suspension components can be costly, with prices ranging from £150 to £600 depending on the specific part and labour involved. Regular inspections can help identify issues early, preventing more significant problems down the line.
Emissions and Exhaust System
While the Audi e-tron is an electric vehicle and does not have a traditional exhaust system, it is still subject to checks for other emissions-related components. Any faults in the battery management system or cooling systems can lead to MOT failures.
Repairs in this area can be complex and costly, often ranging from £200 to £1,000 depending on the specific issue. Keeping up with software updates and routine maintenance can help mitigate potential failures related to emissions.
Windscreen and Wipers
Windscreen issues, including chips and cracks, as well as faulty wipers, are common reasons for MOT failures. A windscreen chip larger than 10mm in the driver’s line of sight will lead to an automatic failure. Wiper blades that do not clear the screen effectively can also cause problems.
Repairing a windscreen chip can cost between £50 and £100, while replacing wiper blades is generally a more affordable fix, typically costing around £20 to £40. Regularly inspecting the windscreen and wipers can help ensure they are in good condition before the MOT.
Frequently asked questions
What is the Audi e-tron mot?
The Audi e-tron mot refers to the electric vehicle's maintenance and operational testing. It ensures that the vehicle meets safety and environmental standards.
How often do I need to get my Audi e-tron mot?
In the UK, electric vehicles like the Audi e-tron require an MOT test every 12 months once they are three years old. It's important to keep up with this to ensure your vehicle is roadworthy.
What does the Audi e-tron mot test include?
The MOT test for the Audi e-tron includes checks on safety features, emissions, and overall vehicle condition. It ensures that all essential components are functioning properly.
Can I drive my Audi e-tron if the mot has expired?
No, you cannot legally drive your Audi e-tron if the MOT has expired. You must have a valid MOT certificate to operate the vehicle on public roads.
Where can I get an Audi e-tron mot done?
You can get an Audi e-tron MOT done at any authorised testing centre or garage that offers MOT services. It's best to choose one that has experience with electric vehicles.
What should I do if my Audi e-tron fails the mot?
If your Audi e-tron fails the MOT, you will receive a list of issues that need to be addressed. You must fix these problems and have the vehicle retested before you can drive it legally.
Are there any special considerations for the Audi e-tron during the mot?
Yes, while the Audi e-tron is an electric vehicle, it still undergoes the same MOT checks as traditional cars. However, specific components like the battery and electric systems may require additional attention.
How can I prepare my Audi e-tron for the mot?
To prepare your Audi e-tron for the MOT, ensure that all lights are working, tyres are in good condition, and the battery is charged. Regular maintenance checks can also help identify potential issues before the test.
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Sources
DVSA MOT History, Honest John reliability index, Parkers owner reviews, WhatCar reliability survey, UK Government MOT failure data.