2021 Renault Kadjar MOT pass rate: 91.6% (3,035 tests)

2021-registered Renault Kadjars passed 91.6% of 3,035 MOT tests in 2023–2025 — 1.2 points better than all UK cars registered in 2021 (90.4%). This is one of the strongest Kadjar years in the age-adjusted MOT ranking, although the individual car still matters more.

91.6%Pass rate, 2021 cars

101.2Age-adjusted index (100 = average)

3,035Tests analysed

25,153 miMedian mileage at test

92.3% / 85.9%Petrol vs diesel pass rate

Is the 2021 Kadjar getting worse?

Pass rate of 2021-registered cars across recent test years:

Test year	Pass rate
2024	92.5% +1.8 vs same-age
2025	90.8% +0.6 vs same-age

The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.

What fails on a 2021 Kadjar

#	System	Defects recorded	Share
1	Tyres	171	42.9%
2	Brakes	75	18.8%
3	Visibility	62	15.5%
4	Lamps, reflectors and electrical equipment	49	12.3%
5	Suspension	17	4.3%
6	Road Wheels	10	2.5%

All Kadjar years compared

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2015	8,977	73.6%	-5.1 pts	70,438
2016	56,396	76.8%	-4.5 pts	62,517
2017	43,075	81.1%	-2.9 pts	53,354
2018	32,387	82.3%	-4.1 pts	45,149
2019	34,455	85.8%	-2.6 pts	34,212
2020	23,912	88.3%	-1.6 pts	27,301
2021 (this page)	3,035	91.6%	+1.2 pts	25,153

Weighing up which year to buy? See the full ranking: Renault Kadjar years to avoid.

Buying a 2021 Kadjar? Two checks first

Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

FAQs

Is a 2021 Renault Kadjar reliable?

2021-registered examples passed 91.6% of their MOT tests (3,035 tests, 2023–2025), +1.2 points versus all UK cars registered in the same year. At roughly 5 years old with a median 25,153 miles, condition now varies car by car — always check the individual MOT history.

What mileage is too high for a 2021 Kadjar?

The median tested example shows 25,153 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.

Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.