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 Mercedes-Benz Gls 400 Amg Ln Prem + D 4mat A Diesel 2925cc has had 2 MOT tests on record, passing every one. It has 45,256 miles on the clock, averaging 12,218 miles per year, above the UK average of 7,400.
MOT & Mileage History for KX21 XSO
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
Above average| Latest reading | 45,256 miles |
| Reading date | |
| Miles last year | 12,369 |
| Average per year | 12,218 |
| Mileage consistency | Consistent |
Check KX21 XSO
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
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- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 2 tests on record
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Vehicle Details
| Registration | KX21 XSO |
| Make | Mercedes-Benz |
| Model | Gls 400 Amg Ln Prem + D 4mat A |
| Colour | Black |
| Fuel type | Diesel |
| Engine | 2925cc |
| Year | 2021 |
| First registered | |
| Area code | KX — Luton, Luton and Northampton |
| Age identifier | 21 — March 2021 to August 2021 |
More KX21 X plates
Browse all KX21 X registrations from Luton.
About KX21 XSO
What car is KX21 XSO?
KX21 XSO is a black Mercedes-Benz Gls 400 Amg Ln Prem + D 4mat A, diesel (2925cc). First registered in Luton in 2021.
What is the mileage of KX21 XSO?
The last recorded mileage for KX21 XSO was 45,256 miles, recorded on 21 Aug 2025 during its most recent MOT test.
Has KX21 XSO passed its MOT?
KX21 XSO has had 2 MOT tests with an 100% pass rate (2 passes, 0 failures). It last passed on 21 Aug 2025.
Is KX21 XSO ULEZ compliant?
Based on its fuel type and registration year, KX21 XSO is likely ULEZ compliant. Diesel post-2015 (Euro 6). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is KX21 XSO?
KX21 XSO is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.