MOT failure rates

Porsche Cayenne MOT failure rates: what to expect

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

Updated 4th September 2026 DVSA data: Across 31,307 recorded MOT tests, 12.1% failed.

Porsche Cayenne
Image via Wikipedia, CC-licensed.

The Porsche Cayenne is a luxury SUV that often faces specific issues during its MOT. Common failures include suspension problems, electrical faults, and emissions issues. Repair costs can vary widely depending on the severity of the problem, but addressing these issues promptly can help maintain the vehicle’s performance and value.

Suspension Problems

One of the most frequent causes of MOT failures for the Porsche Cayenne is suspension-related issues. This can include worn-out shock absorbers, damaged control arms, or failing air suspension components. Such problems can lead to poor handling and increased tyre wear.

Regular inspections can help catch these issues early, potentially saving on more extensive repairs later.

Electrical Faults

Electrical faults are another common reason for MOT failures in the Cayenne. Problems can arise with the vehicle’s lighting systems, dashboard warning lights, or battery issues. These faults can sometimes be tricky to diagnose, leading to higher repair costs.

Regularly checking your electrical systems can help prevent unexpected failures during the MOT.

Emissions Issues

As with many modern vehicles, emissions standards are strict, and the Porsche Cayenne is no exception. Common emissions-related failures include issues with the catalytic converter, exhaust leaks, or malfunctioning oxygen sensors. These problems can lead to increased emissions and may result in an MOT failure.

Keeping the exhaust system well-maintained can help avoid these expensive repairs and ensure compliance with emissions regulations.

Brake System Failures

The brake system is critical for safety and is closely scrutinised during the MOT. Common failures in the Cayenne can include worn brake pads, damaged discs, or issues with the braking system’s hydraulic components. Any failure in this area can lead to serious safety concerns.

Regular brake inspections and timely replacements can ensure optimal performance and safety.

Tyre Condition

Tyres are a crucial part of any vehicle’s safety and performance, and the Porsche Cayenne is no different. MOT failures often arise from insufficient tread depth, uneven wear, or damage to the sidewalls. Maintaining proper tyre condition is essential for both safety and compliance.

Regularly checking tyre pressure and tread depth can help prevent MOT failures and ensure a smoother driving experience. Keeping an eye on tyre health can also enhance fuel efficiency and handling.

Bodywork and Structural Integrity

While not as common as mechanical failures, issues with bodywork and structural integrity can lead to MOT failures. Rust, corrosion, or damage to the chassis can be problematic, especially in older models. These issues can affect the vehicle’s safety and overall performance.

Regularly washing and waxing the vehicle can help protect against rust and prolong the life of the bodywork.

Maintaining a Porsche Cayenne requires attention to detail, particularly when it comes to common MOT failures. By understanding these issues and their associated costs, owners can take proactive measures to ensure their vehicle remains in top condition. Regular maintenance and inspections can help catch potential problems early, ultimately saving money and enhancing the driving experience.

Porsche Cayenne recall record

26 recalls have been issued for the Porsche Cayenne, between 2004 and 2025.

  1. ASA9 Recall campaign - Check the high-pressure pump connections and if necessary replace the high-pressure pumps including fuel lines

    R/2025/432

    Issued 9 October 2025

    On affected vehicles the screw connection of the high-pressure pump was not implemented in accordance with the technical specifications. This can lead to a leak and the possibility of the fuel igniting.

    Remedy:Check the screw connections of both high-pressure pumps and replace the high-pressure pumps and fuel lines if necessary.

    Affects cars built Apr 2023 to Sept 2025

  2. ARC2 Recall campaign - Re-programming DME control unit

    R/2025/060

    Issued 1 December 2024

    The software version of the engine control unit does not correspond to the software version that should be on the vehicle.

    Remedy:Review the software version of the engine control unit and if necessary update it to the correct software version.

    Affects cars built Mar 2016 to Sept 2017

  3. ARB9 Recall campaign - Re-program DME control unit

    R/2025/061

    Issued 1 December 2024

    The software version of the engine control unit does not correspond to the software version that should be on the vehicle.

    Remedy:Review the software version of the engine control unit and if necessary update it to the correct software version.

    Affects cars built Nov 2012 to Oct 2017

  4. ARC1 Recall campaign - Re-programming DME control unit

    R/2025/063

    Issued 1 December 2024

    The software version of the engine control unit does not correspond to the software version that should be on the vehicle.

    Remedy:Review the software version of the engine control unit and if necessary update it to the correct software version.

    Affects cars built Aug 2014 to Nov 2017

22 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.

Porsche Cayenne MOT record

From 31,307 recorded MOT tests, 12.1% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20222,3885.7%24,798 mi
20211,5545.5%32,300 mi
20202,3277.8%39,678 mi
20193,1767.1%44,759 mi
20181,8089.7%57,378 mi
20171,75110.2%68,914 mi
20162,76511.7%76,986 mi
20152,31512.1%84,170 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements35.4%
  2. A tyre seriously damaged25.0%
  3. a brake lining or pad worn below 1.5mm17.0%
  4. A spring or spring component fractured or seriously weakened14.1%
  5. Brake disc or drum excessively weakened, insecure or fractured8.5%

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

Porsche Cayenne official figures

Median across 18 variants on sale, electricity / petrol, petrol.

Combined economy
24.1 mpg
WLTP median across variants
CO2 emissions
266 g/km
Sets the first-year tax rate
Electric range
27 miles
Manufacturer WLTP figure

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

Frequently asked questions

What is the MOT requirement for a Porsche Cayenne?

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

How can I check the MOT history of a Porsche Cayenne?

You can check the MOT history of a Porsche Cayenne by visiting the official UK government website. You will need the vehicle's registration number to access its MOT records.

What common issues might affect the MOT of a Porsche Cayenne?

Common issues that could affect the MOT of a Porsche Cayenne include worn brake pads, faulty lights, and emissions problems. Regular maintenance can help prevent these issues.

What should I do if my Porsche Cayenne fails its MOT?

If your Porsche Cayenne fails its MOT, you will receive a list of issues that need to be addressed. You must fix these problems and have the car retested before you can legally drive it.

Can I drive my Porsche Cayenne if the MOT has expired?

You cannot legally drive your Porsche Cayenne if the MOT has expired, unless you are driving it to a pre-booked MOT appointment. It's important to keep the MOT up to date to avoid penalties.

How can I prepare my Porsche Cayenne for its MOT?

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

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