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 2012 Hyundai I20 Petrol 1396cc has had 14 MOT tests on record, passing 11 and failing 3 (79% pass rate). It has 77,816 miles on the clock, averaging 5,503 miles per year, below the UK average of 7,400. The 1.4 MPI engine is known for 1. timing chain tensioner wear & premature chain failure and 2. excessive oil consumption & oil sludge buildup.
MOT & Mileage History for RJ12 UUG
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
Below average| Latest reading | 77,816 miles |
| Reading date | |
| Miles last year | 1,500 |
| Average per year | 5,503 |
| Mileage consistency | Variable |
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Full MOT Test History 14 tests on record
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Reported issues for this Hyundai I20
These are the most commonly reported problems on Hyundai I20 models (2008–2014), based on owner reports and workshop data across the UK.
1. Timing Chain Tensioner Wear & Premature Chain Failure
The hydraulic tensioner, which maintains tension on the timing chain, fails prematurely—particularly in high-mileage or poorly-maintained engines. When tensioner pressure drops, the chain loses tension and can rattle or, in severe cases, jump timing or snap entirely.[1][2]
2. Excessive Oil Consumption & Oil Sludge Buildup
The G4FA burns or leaks oil faster than typical, exacerbated by carbon and sludge accumulation in the oil system. Poor oil circulation through blocked compression ring galleries and clogged pickup tubes starves bearing surfaces of lubrication, causing additional wear and further oil consumption.[2][4]
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Vehicle Details
| Registration | RJ12 UUG |
| Make | Hyundai |
| Model | I20 |
| Colour | Grey |
| Fuel type | Petrol |
| Engine | 1396cc |
| Year | 2012 |
| First registered | |
| Area code | RJ — Reading, Reading |
| Age identifier | 12 — March 2012 to August 2012 |
More RJ12 U plates
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About RJ12 UUG
What car is RJ12 UUG?
RJ12 UUG is an grey Hyundai I20, petrol (1396cc). First registered in Reading in 2012.
What is the mileage of RJ12 UUG?
The last recorded mileage for RJ12 UUG was 77,816 miles, recorded on 23 Jul 2026 during its most recent MOT test.
Has RJ12 UUG passed its MOT?
RJ12 UUG has had 14 MOT tests with a 79% pass rate (11 passes, 3 failures). It last passed on 23 Jul 2026.
Is RJ12 UUG ULEZ compliant?
Based on its fuel type and registration year, RJ12 UUG 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 RJ12 UUG?
RJ12 UUG is approximately 14 years old. Age identifier 12 means registered between 1 March 2012 and 31 August 2012.