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 2004 Audi A3 Petrol 3189cc has had 16 MOT tests on record, passing 13 and failing 3 (81% pass rate). It has 159,359 miles on the clock, averaging 9,953 miles per year, above the UK average of 7,400. The 3.2 V6 engine is known for 1. serpentine belt tensioner failure and 2. increased oil consumption (high-mileage piston ring wear).
MOT & Mileage History for RJ04 KWN
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gap in MOT history
Mileage Analysis
Above average| Latest reading | 159,359 miles |
| Reading date | |
| Average per year | 9,953 |
| Mileage consistency | Variable |
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- Warranty work logged
Full MOT Test History 16 tests on record
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Reported issues for this Audi A3
These are the most commonly reported problems on Audi A3 models (2003–2012), based on owner reports and workshop data across the UK.
1. Serpentine Belt Tensioner Failure
The tensioner fails prematurely, leading to belt slip or complete belt loss.[1]
2. Increased Oil Consumption (High-Mileage Piston Ring Wear)
Worn piston rings allow oil to pass into the combustion chamber, increasing oil consumption dramatically.[2]
Common faults, what to check, and what to pay
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Vehicle Details
| Registration | RJ04 KWN |
| Make | Audi |
| Model | A3 |
| Colour | Blue |
| Fuel type | Petrol |
| Engine | 3189cc |
| Year | 2004 |
| First registered | |
| Area code | RJ — Reading, Reading |
| Age identifier | 04 — March 2004 to August 2004 |
More RJ04 K plates
Browse all RJ04 K registrations from Reading.
About RJ04 KWN
What car is RJ04 KWN?
RJ04 KWN is an blue Audi A3, petrol (3189cc). First registered in Reading in 2004.
What is the mileage of RJ04 KWN?
The last recorded mileage for RJ04 KWN was 159,359 miles, recorded on 28 Oct 2019 during its most recent MOT test.
Has RJ04 KWN passed its MOT?
RJ04 KWN has had 16 MOT tests with an 81% pass rate (13 passes, 3 failures). It last passed on 28 Oct 2019.
Is RJ04 KWN ULEZ compliant?
Based on its fuel type and registration year, RJ04 KWN is likely not ULEZ compliant. As a petrol vehicle registered in 2004, it typically does not meet the Euro 4 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is RJ04 KWN?
RJ04 KWN is approximately 22 years old. Age identifier 04 means registered between 1 March 2004 and 31 August 2004.