MOT failure rates

Bentley Bentayga MOT failure rates: what to expect

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

Updated 4th September 2026 DVSA data: Across 3,147 recorded MOT tests, 3.8% failed.

Bentley Bentayga
Image via Wikipedia, CC-licensed.

The Bentley Bentayga often faces specific issues during its MOT, primarily related to lights, brakes, and suspension components. These failures can lead to costly repairs, with typical fixes ranging from minor adjustments to more significant replacements. Understanding these common pitfalls can help owners prepare for their MOT tests.

Lights and Electrical Failures

One of the most frequent reasons for MOT failure on the Bentley Bentayga is related to lights and electrical systems. Issues such as blown bulbs, faulty wiring, or malfunctioning indicators can easily lead to a failed test.

Regularly checking lights before the MOT can help avoid these common failures.

Brake System Deficiencies

The brake system is crucial for safety, and any deficiencies can lead to an MOT failure. Common issues include worn brake pads, damaged discs, or leaks in the brake lines. The Bentayga’s high-performance braking system can be particularly sensitive to wear and tear.

Ensuring that the brake system is regularly serviced can help prevent these failures and keep repair costs manageable.

Suspension Problems

Suspension issues are another common reason for MOT failures on the Bentley Bentayga. Problems may arise from worn shock absorbers, damaged springs, or issues with the air suspension system. Given the vehicle’s luxury status, suspension repairs can be particularly expensive.

Regular inspections of the suspension system can help identify potential problems before the MOT.

Tyre Condition and Tread Depth

Tyres are essential for safety and performance, and their condition is closely scrutinised during the MOT. Common issues include insufficient tread depth, uneven wear, or damage to the sidewalls. The Bentayga’s larger tyres can also be more expensive to replace.

In the UK, the legal minimum tread depth is 1.6mm. Regularly checking tyre condition and maintaining proper inflation can help avoid MOT failures related to tyres.

Exhaust Emissions and Noise

Emissions testing is a critical part of the MOT, and the Bentley Bentayga can occasionally face issues with its exhaust system. Problems may arise from a faulty catalytic converter, exhaust leaks, or issues with the engine management system, all of which can lead to increased emissions.

Keeping the exhaust system in good condition can help ensure compliance with emissions standards.

Windscreen and Wiper Functionality

The condition of the windscreen and wipers is another area that can lead to MOT failures. Common problems include chips or cracks in the windscreen, ineffective wipers, or issues with the washer system. Given the Bentayga’s advanced features, repairs can vary in cost.

Regularly inspecting the windscreen and wipers can help prevent failures during the MOT.

By understanding these common MOT failures and their associated costs, Bentley Bentayga owners can take proactive measures to ensure their vehicles remain roadworthy and compliant. Regular maintenance and timely repairs can significantly reduce the likelihood of MOT failures and keep repair expenses in check.

Bentley Bentayga recall record

10 recalls have been issued for the Bentley Bentayga, between 2016 and 2026.

  1. Bentley Bentayga Hybrid – Software Update For HV Battery Management Controller (RE25/46 RD74)

    R/2025/526

    Issued 13 January 2026

    For certain vehicles a defect may be present in the cell modules of the 48Ah High Voltage Battery which could result in overheating during charging. Overheating of the battery cell modules during charging (or shortly afterwards) may lead to a thermal event.

    Remedy:Installation of new software into the Battery Management controller (BMC) to detect potential issues with the performance of the battery modules.

    Affects cars built Mar 2023 to Dec 2023

  2. On affected vehicles the electrical connectors on the W12 Fuel Supply Module located in the fuel tank can overheat and melt the flange material. Melting of the Fuel Supply Module flange material could result in a small fuel leak towards the top of the fuel tank.

    R/2023/252

    Issued 13 September 2023

    On affected vehicles the electrical connectors on the W12 Fuel Supply Module located in the fuel tank can overheat and melt the flange material. Melting of the Fuel Supply Module flange material could result in a small fuel leak towards the top of the fuel tank.

    Remedy:Replacement of the fuel supply module flange.

    Affects cars built Nov 2015 to Apr 2022

  3. THE SECOND ROW SEATS MAY NOT BE CORRECTLY ALIGNED AND LOCKED ON ALL SEAT RAILS

    R/2022/094

    Issued 12 May 2022

    The 2nd row seats may not be correctly aligned and locked on all seat rails.

    Remedy:Check and re-set the relative 2nd row seat rail positions to ensure proper engagement of the seat rail runners.

    Affects cars built Oct 2022 to Oct 2022

  4. Incorrect software parameters have been released for the Chassis Control Module

    R/2021/297

    Issued 25 August 2021

    Incorrect software parameters may have been released for the Chassis Control Module of certain vehicles fitted with standard (passive) roll bars.

    Remedy:The Chassis Control Module will be updated with the correct software parameters.

    Affects cars built Jun 2021 to Jun 2021

6 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.

Bentley Bentayga MOT record

From 3,147 recorded MOT tests, 3.8% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20225103.5%20,522 mi
20214382.7%25,238 mi
20203863.6%30,908 mi
20193773.2%35,678 mi
20185163.7%44,637 mi
20175524.0%48,614 mi
20163685.7%49,303 mi

Most common reasons for failure

  1. A tyre seriously damaged49.7%
  2. Tyre tread depth not in accordance with the requirements22.6%
  3. A suspension pin, bush or joint excessively worn15.1%
  4. a brake lining or pad worn below 1.5mm12.6%

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

Frequently asked questions

What is the Bentley Bentayga mot?

The Bentley Bentayga mot refers to the Ministry of Transport test that checks the vehicle's roadworthiness. It is a legal requirement for all vehicles over three years old in the UK.

How often does my Bentley Bentayga need an mot?

Your Bentley Bentayga must have an mot every year once it reaches three years of age. This ensures that it meets safety and environmental standards.

What are common reasons for a Bentley Bentayga to fail its mot?

Common reasons for an mot failure include issues with brakes, lights, tyres, and emissions. Regular maintenance can help prevent these problems.

Can I drive my Bentley Bentayga if the mot has expired?

No, it is illegal to drive your Bentley Bentayga on public roads if the mot has expired. You should arrange for a new mot before using the vehicle.

How can I prepare my Bentley Bentayga for its mot?

To prepare your Bentley Bentayga for its mot, ensure that all lights are working, tyres are properly inflated, and brakes are functioning well. A pre-mot check by a qualified mechanic can also be beneficial.

What should I do if my Bentley Bentayga fails its mot?

If your Bentley Bentayga fails its mot, you will receive a list of issues that need to be addressed. You can have the necessary repairs done and then retake the mot within a specified period.

Where can I get my Bentley Bentayga mot done?

You can get your Bentley Bentayga mot done at any authorised mot testing centre in the UK. It's advisable to choose a reputable garage with experience in luxury vehicles.

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