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 2020 Volkswagen Polo Petrol 999cc has had 6 MOT tests on record, passing 4 and failing 2 (67% pass rate). It has 39,756 miles on the clock, averaging 3,323 miles per year, well below 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 GJ20 MDZ
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
Low mileage| Latest reading | 39,756 miles |
| Reading date | |
| Miles last year | 4,121 |
| Average per year | 3,323 |
| Mileage consistency | Consistent |
Check GJ20 MDZ
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- Warranty work logged
Full MOT Test History 6 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 | GJ20 MDZ |
| Make | Volkswagen |
| Model | Polo |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2020 |
| First registered | |
| Area code | GJ — Maidstone, Garden of England |
| Age identifier | 20 — March 2020 to August 2020 |
More GJ20 M plates
Browse all GJ20 M registrations from Maidstone.
About GJ20 MDZ
What car is GJ20 MDZ?
GJ20 MDZ is a black Volkswagen Polo, petrol (999cc). First registered in Maidstone in 2020.
What is the mileage of GJ20 MDZ?
The last recorded mileage for GJ20 MDZ was 39,756 miles, recorded on 1 Jun 2026 during its most recent MOT test.
Has GJ20 MDZ passed its MOT?
GJ20 MDZ has had 6 MOT tests with a 67% pass rate (4 passes, 2 failures). It last passed on 1 Jun 2026.
Is GJ20 MDZ ULEZ compliant?
Based on its fuel type and registration year, GJ20 MDZ 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 GJ20 MDZ?
GJ20 MDZ is approximately 6 years old. Age identifier 20 means registered between 1 March 2020 and 31 August 2020.