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 Volkswagen Polo Petrol 999cc has had 3 MOT tests on record, passing every one. It has 61,500 miles on the clock, averaging 17,365 miles per year, above the UK average of 7,400. The 1.0 TSI engine is known for 1. carbon buildup on intake valves and 2. turbocharger actuator/wastegate linkage failure. Common Volkswagen Polo issues include infotainment system glitches and component affected.
MOT & Mileage History for RK21 ZHX
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 | 61,500 miles |
| Reading date | |
| Miles last year | 16,471 |
| Average per year | 17,365 |
| Mileage consistency | Consistent |
Check RK21 ZHX
- Write-off & insurance claims Experian
- Outstanding finance check Experian
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- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 3 tests on record
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Buyers comparing the Volkswagen Polo often also look at these models. Check their MOT history and reliability before deciding:
Reported issues for this Volkswagen Polo
These are the most commonly reported problems on Volkswagen Polo models (2017–2024), based on owner reports and workshop data across the UK.
Infotainment System Glitches
Component affected
What goes wrong
Symptoms
1. Carbon Buildup on Intake Valves
Direct-injection petrol engines like the CHZB lack fuel spray across the intake valves during the induction stroke. Without this natural cleaning action, carbon deposits accumulate on the valve stems and seats, restricting airflow.[2]
2. Turbocharger Actuator/Wastegate Linkage Failure
The actuator linkage connecting the wastegate solenoid to the wastegate valve becomes faulty or loose, causing loss of boost control. Many repair shops misdiagnose this as full turbocharger failure and recommend a costly replacement (€1,000+) when only the actuator arm needs repair (€150).[3]
Common faults, what to check, and what to pay
Explore more about the Volkswagen Polo
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | RK21 ZHX |
| Make | Volkswagen |
| Model | Polo |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2021 |
| First registered | |
| Area code | RK — Reading, Reading |
| Age identifier | 21 — March 2021 to August 2021 |
More RK21 Z plates
Browse all RK21 Z registrations from Reading.
About RK21 ZHX
What car is RK21 ZHX?
RK21 ZHX is an black Volkswagen Polo, petrol (999cc). First registered in Reading in 2021.
What is the mileage of RK21 ZHX?
The last recorded mileage for RK21 ZHX was 61,500 miles, recorded on 26 Feb 2026 during its most recent MOT test.
Has RK21 ZHX passed its MOT?
RK21 ZHX has had 3 MOT tests with an 100% pass rate (3 passes, 0 failures). It last passed on 26 Feb 2026.
Is RK21 ZHX ULEZ compliant?
Based on its fuel type and registration year, RK21 ZHX is likely ULEZ compliant. Petrol post-2005 (Euro 4). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is RK21 ZHX?
RK21 ZHX is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.