Kia Sorento MOT failure rates: what to expect

The Kia Sorento is generally a reliable vehicle, but like any car, it can encounter issues that lead to MOT failures. Common problems include brake system faults, suspension wear, and emissions issues. Understanding these can help you prepare for your MOT and budget for potential repairs.

Brake System Issues

One of the most frequent causes of MOT failures for the Kia Sorento is related to the brake system. This can include worn brake pads, discs, or issues with the brake lines. If the brake pads are worn down, they may need replacing, which typically costs between £100 and £300 depending on the quality of parts used.

Brake discs can also become warped or corroded, leading to reduced braking efficiency. Replacing brake discs can cost between £150 and £400. Additionally, if there are leaks or damage to the brake lines, repairs may range from £50 to £150, depending on the extent of the damage.

Suspension Problems

Suspension components such as shock absorbers and springs are crucial for vehicle stability and comfort. The Kia Sorento often faces suspension-related MOT failures due to wear and tear. If shock absorbers are found to be leaking or ineffective, replacement can cost between £150 and £300 per unit.

Additionally, worn suspension bushes or springs can lead to handling issues and may also fail the MOT. Replacing suspension bushes typically costs around £100 to £200, while springs can range from £100 to £250 for parts and labour.

Emissions Failures

Emissions issues are another common reason for MOT failures, particularly for diesel models of the Kia Sorento. Problems can arise from the exhaust system, including the diesel particulate filter (DPF) becoming blocked or malfunctioning. Cleaning or replacing a DPF can be quite expensive, with costs ranging from £300 to £1,500 depending on the severity of the issue.

Other emissions-related problems may stem from faulty sensors or issues with the engine management system. Diagnosing these problems can cost around £50 to £100, and repairs can vary widely, typically ranging from £100 to £500.

Tyre Condition

Tyres are critical for safety and performance, and worn or damaged tyres are a common reason for MOT failures. The legal minimum tread depth in the UK is 1.6mm, but it is advisable to replace tyres when they reach 3mm for optimal performance. Replacing a single tyre can cost between £50 and £150, depending on the brand and specifications.

Additionally, issues such as uneven wear or damage to the sidewalls can lead to MOT failures. If alignment or balancing is required, this can add another £30 to £100 to the overall cost. Regular checks and maintenance can help prevent these issues from arising.

Lights and Electrical Systems

Faulty lights are another frequent cause of MOT failures for the Kia Sorento. This includes headlights, brake lights, and indicators. Replacing a blown bulb is relatively inexpensive, typically costing between £5 and £20, but if there are underlying electrical issues, the costs can rise significantly.

Issues with wiring or fuses can lead to multiple lights failing simultaneously, and diagnosing these problems can cost between £50 and £150. Ensuring that all lights are functioning properly before the MOT can save time and money.

Bodywork and Structural Integrity

While less common, failures related to bodywork and structural integrity can occur, particularly in older models. Rust or corrosion on critical components can lead to MOT failures. Repairing rust can vary widely in cost, from £100 for minor surface rust to £1,000 or more for extensive repairs.

Additionally, issues with the vehicle’s chassis or subframe can also lead to MOT failures. If structural repairs are needed, costs can escalate quickly, often ranging from £500 to £2,000 depending on the severity of the damage. Regular inspections can help identify these issues early on.

Understanding these common MOT failures for the Kia Sorento can help owners prepare for their annual test. By addressing potential issues proactively, you can save on repair costs and ensure your vehicle remains safe and roadworthy.

Kia Sorento MOT record

From 35,928 recorded MOT tests, 24.4% failed.

MOT pass and failure rates by year of first registration
Registered	Tests	Failed	Median mileage
2023	246	1.2%	27,768 mi
2022	2,134	8.8%	28,879 mi
2021	2,424	10.7%	37,646 mi
2020	1,152	13.5%	43,074 mi
2019	2,709	15.0%	49,770 mi
2018	2,691	15.0%	60,175 mi
2017	3,071	18.0%	68,501 mi
2016	3,118	21.7%	76,941 mi

Most common reasons for failure

A suspension pin, bush or joint excessively worn30.3%
Tyre tread depth not in accordance with the requirements28.8%
a brake lining or pad worn below 1.5mm16.5%
Brake pipe damaged or excessively corroded13.6%
A tyre seriously damaged10.8%

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

Kia Sorento official figures

Median across 15 variants on sale, diesel, electricity / petrol, petrol electric.

Combined economy

42.8 mpg

WLTP median across variants

CO2 emissions

165 g/km

Sets the first-year tax rate

Electric range

37 miles

Manufacturer WLTP figure

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

Frequently asked questions

What is the Kia Sorento MOT requirement in the UK?

In the UK, the Kia Sorento must undergo its first MOT test three years after its registration date. After that, it needs to be tested annually.

How can I check the MOT status of a Kia Sorento?

You can check the MOT status of a Kia Sorento by visiting the official UK government website. You will need the vehicle's registration number to access the information.

What common issues should I look for before the MOT?

Before the MOT, check the brakes, lights, tyres, and windscreen wipers. Ensuring these components are in good condition can help avoid failures.

How much does an MOT for a Kia Sorento typically cost?

The cost of an MOT for a Kia Sorento can vary depending on the garage, but it generally ranges from £30 to £50. It's best to shop around for the best price.

What happens if my Kia Sorento fails the MOT?

If your Kia Sorento 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.

Can I drive my Kia Sorento if it has an expired MOT?

You cannot legally drive your Kia Sorento if it has an expired MOT, unless you are taking it to a pre-booked MOT appointment. Driving without a valid MOT can result in fines.

How can I prepare my Kia Sorento for its MOT?

To prepare your Kia Sorento for its MOT, ensure all lights work, check tyre pressure and tread depth, and top up fluids. A thorough inspection can help identify potential issues.

Is it possible to get an MOT extension for my Kia Sorento?

MOT extensions are not commonly granted, but in exceptional circumstances, you may be able to apply for one. It is best to contact your local MOT centre for guidance.