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Kia Niro reliability

A · Excellent

MOT pass rates and common problems from 348,777 MOT tests of cars first registered 2016–2023.

87.4%pass first time
+3.4 ptsvs typical car
Beats 81%of cars
348,777MOT tests

Verdict

The Kia Niro passes its MOT first time on 87.4% of tests, 3.4 points higher than a typical car of the same age and mileage (84.0%). That puts it ahead of 81% of cars on UK roads once age and mileage are taken into account.

By year of first registration, the 2017 Niro does best (beats 87% of cars) and the 2022 worst (beats 77%).

Of its engines, the 1.6 Hybrid does best (beats 82%) and the Electric worst (beats 79%).

Better than average on lights & electrics, brakes, suspension.

MOT pass rate by age

First-time pass rate at each MOT by the car’s age in years.

70%75%80%85%90%95%345678989%88%87%86%86%84%84%
Kia NiroTypical car, same age & mileage

Best and worst years

By year of first registration, ranked against all cars on UK roads after adjusting for age and mileage. Green = better than half of cars.

2016
Beats 90%
2017
Beats 87%
2018
Beats 86%
2019
Beats 83%
2020
Beats 77%
2021
Beats 79%
2022
Beats 77%
2023
Beats 83%

Engines

All years, most common first. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

EngineYearsTestsPass rateRankGrade
1.6 Hybrid2016–2023244,96087.6%Beats 82%A
Electric2019–2023103,81787.2%Beats 79%B

Where it fails

Each area compared with a typical car of the same age and mileage, in points of pass rate. Tap or hover an area to see what to check.

Exhaust: 0.2% of tests fail on emissions & leaks, against 1.1% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Suspension: 0.3% of tests fail on suspension, against 1.9% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Lights: 2.7% of tests fail on lights & electrics, against 4.4% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Tyres: 5.9% of tests fail on tyres, against 5.5% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Brakes: 1.3% of tests fail on brakes, against 2.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Lights: 2.7% of tests fail on lights & electrics, against 4.4% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+1.7 ptsTyres: 5.9% of tests fail on tyres, against 5.5% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres−0.4 ptsBrakes: 1.3% of tests fail on brakes, against 2.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes+1.5 ptsSuspension: 0.3% of tests fail on suspension, against 1.9% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+1.6 ptsExhaust: 0.2% of tests fail on emissions & leaks, against 1.1% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+0.8 ptsSuspension: 0.3% of tests fail on suspension, against 1.9% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Brakes: 1.3% of tests fail on brakes, against 2.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Tyres: 5.9% of tests fail on tyres, against 5.5% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Lights: 2.7% of tests fail on lights & electrics, against 4.4% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Exhaust: 0.2% of tests fail on emissions & leaks, against 1.1% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Lights: 2.7% of tests fail on lights & electrics, against 4.4% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+1.7 ptsTyres: 5.9% of tests fail on tyres, against 5.5% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres−0.4 ptsBrakes: 1.3% of tests fail on brakes, against 2.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes+1.5 ptsSuspension: 0.3% of tests fail on suspension, against 1.9% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+1.6 ptsExhaust: 0.2% of tests fail on emissions & leaks, against 1.1% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+0.8 pts
Better than typicalTypicalWorse than typical
Tyres: 5.9% of tests fail on tyres, against 5.5% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.

Every MOT area

Share of tests failing on each area, against a typical car of the same age and mileage (black line).

Tyres
5.9% vs 5.5%
Visibility
3.4% vs 3.4%
Lights & electrics
2.7% vs 4.4%
Brakes
1.3% vs 2.8%
Suspension
0.3% vs 1.9%
Emissions & leaks
0.2% vs 1.1%
Body & structure
0.2% vs 0.6%
Steering
0.1% vs 0.4%
Seat belts & airbags
0.1% vs 0.4%
Wheels
0.1% vs 0.2%

Buying one or MOT due? Check these

  • Tyre damage & cracking
    Look for cuts, bulges and cracking on both sidewalls of every tyre.
  • Windscreen wipers
    Test the washers and wipers: a cheap fix, but a very common MOT fail.
  • Tyre tread depth
    Check every tyre, including the inner edge, has at least 3 mm of tread. Uneven wear can point to alignment or suspension problems.
  • Headlight aim
    Park facing a wall at night: both dipped beams should sit level and dip to the left.
  • Number plate lights
    Walk around with the lights on: bulb failures are the easiest MOT fails to avoid.
  • Headlight bulbs & units
    Check dipped and main beam on both sides.

Pass rate by mileage

First-time pass rate by mileage at the test.

70%80%90%100%0k10k20k30k40k50k60k70k80k90k100k110k120k130k140k150k95%89%86%86%86%85%85%84%
Kia NiroTypical car

Most common MOT failures

ItemThis carTypicalvs typical
Tyre damage & cracking4.2%3.5%1.2×
Windscreen wipers2.7%2.1%1.3×
Tyre tread depth1.7%1.8%0.9×
Headlight aim1.1%1.8%0.6×
Windscreen washers0.7%1.2%0.6×
Number plate lights0.6%0.5%1.1×
Headlight bulbs & units0.5%0.8%0.6×
Handbrake performance0.4%0.3%1.3×
Tyre pressure warning (TPMS)0.3%0.4%0.8×
Indicator side repeaters0.3%0.2%1.3×

Specific defects found

Tester wording for the most frequent failure items, per 1,000 tests.

Defectper 1,000
Wiper blade missing or obviously not clearing the windscreen27.1
A tyre seriously damaged22.5
A tyre cords visible or damaged19.5
Tyre tread depth not in accordance with the requirements17.1
The aim of a headlamp is not within limits laid down in the requirements10.7
Windscreen washers not working or not providing sufficient fluid to clear the windscreen7.1
A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps4.8
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED4.3
Check another car

Pick a make and model to see its MOT pass rate, best and worst years and weak spots.

Every year and engine

Tap a year to see its engines. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

2023 Kia Niro2 engines89.3% passA
EngineTestsPass rateRankGrade
Electric5,45988.3%Beats 78%B
1.6 Hybrid5,20390.4%Beats 88%A
2022 Kia Niro2 engines88.3% passB
EngineTestsPass rateRankGrade
Electric26,13487.3%Beats 81%A
1.6 Hybrid24,17289.3%Beats 72%B
2021 Kia Niro2 engines87.9% passB
EngineTestsPass rateRankGrade
Electric41,85187.2%Beats 80%A
1.6 Hybrid35,78888.8%Beats 75%B
2020 Kia Niro2 engines87.9% passB
EngineTestsPass rateRankGrade
1.6 Hybrid49,30688.5%Beats 79%B
Electric26,82886.8%Beats 75%B
2019 Kia Niro2 engines86.9% passA
EngineTestsPass rateRankGrade
1.6 Hybrid47,14087.0%Beats 83%A
Electric3,54586.0%Beats 79%B
2018 Kia Niro1 engine86.0% passA
EngineTestsPass rateRankGrade
1.6 Hybrid42,80586.0%Beats 86%A
2017 Kia Niro1 engine86.2% passA
EngineTestsPass rateRankGrade
1.6 Hybrid30,59186.2%Beats 87%A
2016 Kia Niro1 engine86.0% passA
EngineTestsPass rateRankGrade
1.6 Hybrid9,95586.0%Beats 90%A

FAQ

What is the Kia Niro MOT pass rate?

87.4% of MOT tests on the Kia Niro were passed first time, based on 348,777 tests between 2019 and 2026 of cars first registered 2016–2023. A typical car of the same age and mileage passes 84.0% of the time.

Is the Kia Niro reliable?

On MOT results it rates A (excellent): it passes first time more often than a typical car of the same age and mileage and does better than 81% of cars on UK roads. MOT results cover safety and emissions items, not every kind of breakdown.

Which Kia Niro year is best?

Among years with enough data, the 2017 Niro does best for its age and mileage: it beats 87% of cars on UK roads. The 2022 does worst: it beats 77%.

Which Kia Niro engine is best?

Across all years, the 1.6 Hybrid does best: it beats 82% of cars on UK roads. The Electric does worst: it beats 79%.

What are the most common MOT failures on the Kia Niro?

The most common failure items are tyre damage & cracking, windscreen wipers, tyre tread depth.

How we calculate this. We use official MOT results for cars tested in Great Britain from 2018 to 2026. Each car is compared with typical cars of the same age and mileage, so old and new cars are judged fairly; “pts” are percentage points above or below them. Differences also reflect how cars are used and maintained, not only how they are built.