Genesis G80 MOT failure rates: what to expect
What fails on a Genesis G80 at MOT, how often, and what each fix typically costs.

The Genesis G80 is a luxury saloon that combines style and performance, but like any vehicle, it can encounter issues that may lead to an MOT failure. Common problems include issues with lights, brakes, and suspension. Addressing these concerns can vary in cost, but understanding them can help you prepare for your next MOT.
Common Light Failures
One of the most frequent reasons for MOT failures on the Genesis G80 is lighting issues. This includes problems with headlights, brake lights, and indicators. A blown bulb or misaligned headlight can easily cause a failure during the test.
Replacing a bulb typically costs between £10 and £20, depending on the type and whether you choose to do it yourself or have it done professionally. If the issue is with the headlight alignment, a simple adjustment at a garage may cost around £30 to £50. However, if the problem lies deeper, such as wiring or electrical faults, costs can escalate significantly.
Brake System Issues
The brake system is critical for safety and is another common area of concern during the MOT for the Genesis G80. Issues such as worn brake pads, discs, or leaks in the brake lines can lead to a failure.
Brake pad replacement usually costs between £100 and £300, depending on the quality of parts and labour. If the brake discs also need replacing, this can add another £150 to £300 to your bill. Regular maintenance and checks can help prevent these issues from arising unexpectedly.
Suspension Problems
Suspension issues are also prevalent in the Genesis G80, particularly with components like shock absorbers and springs. A worn suspension can lead to poor handling and increased stopping distances, which are serious safety concerns.
Replacing shock absorbers can cost between £150 and £300 per corner, while springs may range from £100 to £200 each. If multiple components need attention, the total cost can quickly add up. Regular inspections can help identify these problems before the MOT.
Tyre Condition and Tread Depth
Tyres are crucial for safety and performance, and they 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 safety.
Tyre replacement costs can vary widely based on the brand and size, typically ranging from £50 to £150 per tyre. Additionally, if your tyres are unevenly worn or damaged, you may also need a wheel alignment, which can cost around £50 to £100. Keeping an eye on tyre condition can help avoid last-minute replacements before your MOT.
Exhaust Emissions
Exhaust emissions are a vital part of the MOT test, and any issues can lead to a failure. The Genesis G80 is equipped with advanced emission control systems, but problems can arise, particularly with the catalytic converter or oxygen sensors.
Replacing a catalytic converter can be expensive, often costing between £500 and £1,200, depending on the model and parts used. Oxygen sensor replacement is generally less costly, typically ranging from £100 to £200. Regular servicing can help maintain the exhaust system and prevent costly repairs.
Bodywork and Structural Integrity
While not as common as mechanical issues, bodywork and structural integrity can also affect MOT results. Rust, corrosion, or damage to the chassis can lead to a failure, especially if it compromises safety.
Repair costs for bodywork can vary greatly depending on the extent of the damage. Minor rust repairs might cost around £100 to £300, while more extensive structural repairs can reach £1,000 or more. Keeping your vehicle clean and addressing minor issues promptly can help maintain its integrity.
Understanding these common MOT failure points for the Genesis G80 can help you prepare for your next test. Regular maintenance and timely repairs can save you money and ensure your vehicle remains safe and roadworthy.
Frequently asked questions
What is the Genesis G80 mot?
The Genesis G80 mot refers to the Ministry of Transport test required for vehicles in the UK to ensure they meet safety and environmental standards. It is essential for keeping your car roadworthy.
How often do I need to get my Genesis G80 mot?
In the UK, you must have an mot test done annually once your vehicle is three years old. It is important to keep track of the expiry date to avoid fines.
Where can I get my Genesis G80 mot tested?
You can get your Genesis G80 mot tested at any authorised mot testing centre. Many garages offer this service, so it is advisable to check for local options.
What happens if my Genesis G80 fails the mot?
If your Genesis G80 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 before it can be legally driven.
Can I drive my Genesis G80 if the mot has expired?
No, you cannot legally drive your Genesis G80 if the mot has expired, unless you are driving it to a pre-booked mot appointment. Driving without a valid mot can result in fines.
What documents do I need for the Genesis G80 mot?
You should bring the vehicle registration document and any previous mot certificates to the testing centre. It is also helpful to have your insurance details handy.
How can I prepare my Genesis G80 for the mot?
To prepare your Genesis G80 for the mot, check the lights, brakes, tyres, and fluid levels. Ensuring these components are in good condition can help avoid potential failures.
Is the Genesis G80 reliable for mot tests?
The Genesis G80 is generally considered a reliable vehicle, but like any car, its mot performance depends on maintenance and care. Regular servicing can help ensure it passes the mot.
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Sources
DVSA MOT History, Honest John reliability index, Parkers owner reviews, WhatCar reliability survey, UK Government MOT failure data.