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 Bmw 3 Series Petrol 2494cc has had 4 MOT tests on record, passing every one. It has 40,865 miles on the clock, averaging 5,551 miles per year, below the UK average of 7,400. The 2.5i engine is known for m54b25. Common Bmw 3 Series issues include rear subframe mount cracking (racp failure) and front lower control arm bushings.
MOT & Mileage History for RN54 AAZ
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 | 40,865 miles |
| Reading date | |
| Miles last year | 2,508 |
| Average per year | 5,551 |
| Mileage consistency | Consistent |
Check RN54 AAZ
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Full MOT Test History 4 tests on record
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Reported issues for this Bmw 3 Series
These are the most commonly reported problems on Bmw 3 Series models (1998–2006), based on owner reports and workshop data across the UK.
Rear Subframe Mount Cracking (RACP Failure)
Fatigue cracks develop at the mounting points due to corrosion and stress; BMW's foam injection "fix" often fails, leading to subframe tearing. Affects **ALL body styles** (saloon, estate, coupe, convertible). · Typical repair: £800-£2,000 (reinforcement plates + welding at indie BMW specialist; foam fix £300 but inadequate).
Front Lower Control Arm Bushings
Rubber cracks/splits, causing excessive movement. Affects **ALL body styles**. · Typical repair: £200-£400 (bush press + alignment at indie).
Window Regulators
Cables fray or pulleys break, jamming mechanism. Affects **ALL body styles** (worse on coupes/convertibles with frameless windows). · Typical repair: £150-£300 per door (regulator + motor at indie).
Cooling System Leaks (Non-Engine Specific)
Plastic cracks from age/heat cycles; excludes water pump (engine-related). Affects **ALL body styles**. · Typical repair: £150-£350 (tank + hoses).
M54B25
Diaphragm ruptures or hoses clog, pressurising crankcase and pushing oil into intake.
Common faults, what to check, and what to pay
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Vehicle Details
| Registration | RN54 AAZ |
| Make | Bmw |
| Model | 3 Series |
| Colour | Blue |
| Fuel type | Petrol |
| Engine | 2494cc |
| Year | 2004 |
| First registered | |
| Area code | RN — Reading, Reading |
| Age identifier | 54 — September 2004 to February 2005 |
More RN54 A plates
Browse all RN54 A registrations from Reading.
About RN54 AAZ
What car is RN54 AAZ?
RN54 AAZ is an blue Bmw 3 Series, petrol (2494cc). First registered in Reading in 2004.
What is the mileage of RN54 AAZ?
The last recorded mileage for RN54 AAZ was 40,865 miles, recorded on 6 Dec 2010 during its most recent MOT test.
Has RN54 AAZ passed its MOT?
RN54 AAZ has had 4 MOT tests with an 100% pass rate (4 passes, 0 failures). It last passed on 6 Dec 2010.
Is RN54 AAZ ULEZ compliant?
Based on its fuel type and registration year, RN54 AAZ 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 RN54 AAZ?
RN54 AAZ is approximately 22 years old. Age identifier 54 means registered between 1 September 2004 and 28 February 2005.