MOT failure rates

Lexus IS MOT failure rates: what to expect

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

Updated 4th September 2026 DVSA data: Across 14,179 recorded MOT tests, 10.4% failed.

Lexus IS
Image via Wikipedia, CC-licensed.

The Lexus IS is generally a reliable vehicle, but like any car, it can encounter issues that lead to MOT failures. Common problems include worn brake components, suspension issues, and emissions failures. Addressing these issues promptly can help ensure your Lexus IS passes its MOT with minimal hassle.

Brake System Failures

One of the most frequent reasons for MOT failures in the Lexus IS is related to the braking system. This can include worn brake pads, damaged discs, or issues with the brake lines. The DVSA MOT data indicates that brake-related failures are among the top concerns for vehicles in this category.

Regular maintenance and timely replacements can help avoid more serious issues down the line.

Suspension Problems

Suspension issues are another common reason for MOT failures in the Lexus IS. Components such as shock absorbers, springs, and bushings can wear out over time, leading to a rough ride and handling problems.

Keeping an eye on suspension components can help maintain ride quality and safety.

Emissions Failures

Emissions failures are increasingly common in modern vehicles, including the Lexus IS. Issues with the exhaust system, catalytic converter, or engine management can lead to a vehicle failing its emissions test.

Regular servicing and using quality fuel can help mitigate emissions issues.

Tyre Condition and Tread Depth

Tyres are crucial for safety and performance, and they are a common reason for MOT failures in the Lexus IS. Insufficient tread depth or damage to the tyre sidewalls can lead to a failed test. The legal minimum tread depth in the UK is 1.6mm, but many experts recommend replacing tyres when tread reaches 3mm for optimal safety.

If multiple tyres need replacement, the costs can add up quickly. Regularly checking tyre condition and pressure can help prolong their lifespan and ensure safety.

Lighting and Visibility Issues

Lighting and visibility problems are another frequent cause of MOT failures for the Lexus IS. This can include faulty headlights, brake lights, or indicators, as well as issues with windscreen wipers or washers. Ensuring that all lights are functioning correctly is essential for both safety and passing the MOT.

Regular checks can help prevent last-minute repairs before the MOT.

Steering and Alignment Problems

Steering and alignment issues can also lead to MOT failures in the Lexus IS. Problems with the steering rack, tie rods, or alignment can affect handling and safety.

Regular inspections can help identify steering issues early, ensuring a safer driving experience.

By staying proactive with maintenance and addressing common issues, Lexus IS owners can improve their chances of passing the MOT and enjoying a reliable driving experience.

Lexus IS recall record

3 recalls have been issued for the Lexus IS, between 2014 and 2020.

  1. FUEL PUMP IMPELLER CAN CRACK AND CAUSE FUEL PUMP TO BECOME INOPRATIVE

    R/2020/060

    Issued 5 October 2020

    On affected vehicles the low pressure fuel pump located in the fuel tank could become inoperative.

    Remedy:Replace the fuel pump.

    Affects cars built Jul 2017 to Sept 2019

  2. RISK OF FIRE

    R/2016/080

    Issued 26 May 2016

    The fuel pressure sensor may not have correctly tightened during assembly. Over time this may affect the seal and allow fuel odour to escape. This could ignite in the presence of an ignition source.

    Remedy:On affected vehicles replace seal and tighten pressure sensor to specification.

    Affects cars built Jun 2005 to Sept 2007

  3. RISK OF FIRE

    R/2014/135

    Issued 24 November 2014

    The fuel pressure sensor gasket may degrade and allow fuel to leak into the engine compartment. In the presence of an ignition source the risk of fire is increased.

    Remedy:Recall the vehicles that are likely to be affected to repair the fuel pipe and replace the fuel pressure sensor gasket.

    Affects cars built Jul 2007 to Jun 2010

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.

Lexus IS MOT record

From 14,179 recorded MOT tests, 10.4% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20205505.3%38,038 mi
20191,1507.6%52,448 mi
20181,4526.8%58,270 mi
20171,5268.4%64,389 mi
20161,94411.4%73,686 mi
20152,74411.1%82,590 mi
20142,97411.6%91,725 mi
20131,56714.0%93,776 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements37.9%
  2. A tyre seriously damaged30.4%
  3. A tyre cords visible or damaged12.4%
  4. Brake disc or drum excessively weakened, insecure or fractured10.2%
  5. a brake lining or pad worn below 1.5mm9.2%

Figures cover every Lexus IS 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 Lexus IS MOT requirement?

In the UK, the Lexus IS must undergo an MOT test every year once it is three years old. This test checks that the vehicle meets road safety and environmental standards.

How can I check if my Lexus IS is due for an MOT?

You can check if your Lexus IS is due for an MOT by visiting the official government website. You will need to enter your vehicle registration number to find the MOT expiry date.

What should I do if my Lexus IS fails its MOT?

If your Lexus IS fails its MOT, you will receive a list of issues that need to be fixed. You must address these problems and have the vehicle retested before you can legally drive it.

Can I drive my Lexus IS if the MOT has expired?

No, you cannot legally drive your Lexus IS if the MOT has expired, unless you are driving it to a pre-booked MOT appointment. Doing so can result in fines and penalties.

What documents do I need for my Lexus IS MOT?

You should bring your vehicle registration document and any previous MOT certificates to the appointment. It's also helpful to have your insurance details handy.

How long does an MOT test take for a Lexus IS?

An MOT test typically takes about 45 minutes to an hour. However, it may take longer if repairs are needed or if the garage is busy.

Are there any common issues with the Lexus IS that might affect its MOT?

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

Sources