Vehicle summary
ULEZ status is estimated based on fuel type and registration year. It may not reflect the actual emission standard of this vehicle. Check with TfL for a definitive answer.
At a glance
This 2021 Hyundai Kona Electric has had 4 MOT tests on record, passing 3 and failing once (75% pass rate). It has 108,772 miles on the clock, averaging 40,087 miles per year, above the UK average of 7,400. Common Hyundai Kona issues include 1. infotainment system glitches and 2. interior rattles and cheap plastics (door panels, dashboard).
MOT & Mileage History for CN21 BNK
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
Above average| Latest reading | 108,772 miles |
| Reading date | |
| Miles last year | 44,037 |
| Average per year | 40,087 |
| Mileage consistency | Consistent |
Check CN21 BNK
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
- Ownership changes Experian
- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 4 tests on record
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Reported issues for this Hyundai Kona
These are the most commonly reported problems on Hyundai Kona models (2017–2022), based on owner reports and workshop data across the UK.
1. Infotainment system glitches (8" or 10.25" touchscreen post-facelift)
Screen freezes, lags, or reboots randomly; Apple CarPlay/Android Auto disconnects frequently; navigation or radio locks up for seconds. · Typical repair: £50-£150 for dealer software update; £300-£600 for screen replacement if hardware fault (indie garage).
2. Interior rattles and cheap plastics (door panels, dashboard)
Hard plastics in lower/mid trims creak or rattle; clips loosen over time. · Typical repair: £100-£250 to refit clips + felt tape (DIY-friendly); £400+ for full panel refresh.
3. Airbag control unit software fault
ECU misreads crash signals, potentially delaying airbag deployment. · Typical repair: Free under recall; £200-£400 if out-of-warranty software flash.
4. Excessive road/tire noise (sound insulation)
Thin insulation lets in wind/road noise; pre-facelift worst. · Typical repair: £200-£500 for aftermarket sound deadening mats in doors/wheel wells.
Explore more about the Hyundai Kona
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Vehicle Details
| Registration | CN21 BNK |
| Make | Hyundai |
| Model | Kona |
| Colour | Grey |
| Fuel type | Electric |
| Year | 2021 |
| First registered | |
| Area code | CN — Cardiff, Cymru (Wales) |
| Age identifier | 21 — March 2021 to August 2021 |
More CN21 B plates
Browse all CN21 B registrations from Cardiff.
About CN21 BNK
What car is CN21 BNK?
CN21 BNK is a grey Hyundai Kona, electric. First registered in Cardiff in 2021.
What is the mileage of CN21 BNK?
The last recorded mileage for CN21 BNK was 108,772 miles, recorded on 13 Aug 2026 during its most recent MOT test.
Has CN21 BNK passed its MOT?
CN21 BNK has had 4 MOT tests with a 75% pass rate (3 passes, 1 failure). It last passed on 13 Aug 2026.
Is CN21 BNK ULEZ compliant?
Based on its fuel type and registration year, CN21 BNK is likely ULEZ compliant. Electric — exempt. This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is CN21 BNK?
CN21 BNK is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.