Tesla Model S MOT failure rates: what to expect

What fails on a Tesla Model S at MOT, how often, and what each fix typically costs.

Tesla Model S
Image via Wikipedia, CC-licensed.

The Tesla Model S is generally a reliable electric vehicle, but like any car, it can encounter issues that lead to MOT failures. Common problems include worn tyres, faulty lights, and issues with the suspension. Fixing these issues can vary in cost, but understanding them can help you prepare for your MOT.

Tyres: A Common MOT Failure

Tyres are one of the most frequent reasons for MOT failures on the Tesla Model S. The legal tread depth in the UK is 1.6mm across the central three-quarters of the tyre. If your tyres are worn beyond this limit, they will fail the MOT.

Replacing tyres can cost anywhere from £100 to £300 per tyre, depending on the brand and specifications. It is advisable to regularly check the tread depth and replace tyres before they reach the legal limit. Additionally, ensure that your tyre pressure is maintained, as under-inflated tyres can wear out more quickly and affect handling.

Lights and Indicators: Essential for Safety

Faulty lights and indicators are another common reason for MOT failures. The Model S is equipped with various lights, including headlights, brake lights, and turn signals. If any of these are not functioning correctly, it can lead to an automatic failure.

Replacing a bulb is relatively inexpensive, typically costing between £5 and £20, depending on the type of bulb. However, if the issue lies within the wiring or the light unit itself, repairs can be more costly, ranging from £50 to £150. Regularly checking your lights can prevent last-minute repairs before your MOT.

Suspension Issues: A Critical Component

The suspension system of the Tesla Model S is designed for comfort and performance, but wear and tear can lead to MOT failures. Common issues include worn bushings, shock absorbers, and springs. A failure in this area can significantly affect the vehicle’s handling and safety.

Repairing or replacing suspension components can be expensive, with costs ranging from £100 to £800, depending on the parts needed and labour costs. Regular inspections and addressing any unusual noises or handling issues can help catch problems early and avoid costly repairs.

Brakes: Vital for Safe Operation

Brakes are crucial for vehicle safety, and any issues can lead to an MOT failure. The Tesla Model S features regenerative braking, which can sometimes mask traditional brake wear. Common problems include worn brake pads or discs, which can be overlooked until the MOT.

Replacing brake pads typically costs between £100 and £300, while disc replacement can add another £150 to £400. It is essential to monitor brake performance and have them checked regularly, especially if you notice any changes in braking efficiency or unusual noises.

Battery and Electrical Systems: Unique to Electric Vehicles

While the Tesla Model S is known for its electric powertrain, battery and electrical system issues can also lead to MOT failures. Problems may include faulty sensors or issues with the battery management system. Although these are less common, they can still occur.

Diagnosing electrical issues can be complex and may require specialist knowledge. Repair costs can vary widely, from £100 for minor fixes to over £1,000 for significant battery repairs or replacements. Keeping your software updated and addressing warning lights promptly can help mitigate these issues.

Windscreen and Wipers: Visibility Matters

A clear windscreen is essential for safe driving, and any damage can lead to an MOT failure. Common issues include chips, cracks, or worn wiper blades. The MOT test will check for any damage that obstructs the driver’s view.

Repairing minor chips can cost around £50, while replacing a windscreen can range from £200 to £1,000, depending on the extent of the damage and the type of glass used. Regularly inspecting your windscreen and wipers can help ensure you maintain clear visibility and avoid MOT failures.

Understanding these common MOT failures for the Tesla Model S can help you prepare and maintain your vehicle effectively. Regular checks and addressing issues early can save you time and money, ensuring your car remains roadworthy and compliant with UK regulations.

Frequently asked questions

What is the Tesla Model S mot?

The Tesla Model S MOT is a mandatory annual test to ensure that the vehicle meets road safety and environmental standards in the UK.

How often does a Tesla Model S need an MOT?

A Tesla Model S requires an MOT test every 12 months once it is three years old. This is in line with UK regulations for all vehicles.

What does the MOT test cover for a Tesla Model S?

The MOT test for a Tesla Model S covers various aspects, including brakes, lights, tyres, and emissions. It ensures the vehicle is safe to drive and meets environmental standards.

Can I drive my Tesla Model S if it fails the MOT?

If your Tesla Model S fails the MOT, you cannot legally drive it on public roads until the necessary repairs are made and it passes a retest.

How can I prepare my Tesla Model S for its MOT?

To prepare your Tesla Model S for its MOT, check the lights, tyres, and brakes. It is also a good idea to ensure that the battery is charged and that there are no warning lights on the dashboard.

Where can I get an MOT for my Tesla Model S?

You can get an MOT for your Tesla Model S at any authorised testing centre in the UK. Many garages are equipped to handle electric vehicles.

What should I do if my Tesla Model S is due for an MOT?

If your Tesla Model S is due for an MOT, book an appointment at a local testing centre. Make sure to allow enough time for any repairs if it does not pass.

Are there any special considerations for the Tesla Model S during the MOT?

While the MOT process is similar for all vehicles, ensure that the technician is familiar with electric vehicles like the Tesla Model S, as they may have specific requirements.

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Sources

DVSA MOT History, Honest John reliability index, Parkers owner reviews, WhatCar reliability survey, UK Government MOT failure data.