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 2003 Bmw 3 Series Petrol 2979cc has had 25 MOT tests on record, passing 19 and failing 6 (76% pass rate). It has 139,320 miles on the clock, averaging 5,588 miles per year, below the UK average of 7,400. The 3.0i engine is known for m54 3.0l (m54b30) and water pump and thermostat. Common Bmw 3 Series issues include rear subframe mount cracking (racp failure) and front lower control arm bushings.
MOT & Mileage History for RN52 XNU
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 | 139,320 miles |
| Reading date | |
| Miles last year | 11 |
| Average per year | 5,588 |
| Mileage consistency | Variable |
Check RN52 XNU
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Full MOT Test History 25 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).
M54 3.0L (M54B30)
Water pump (engine-driven, plastic impeller type) and thermostat
Common faults, what to check, and what to pay
Explore more about the Bmw 3 Series
Thinking about buying this car? These resources will help you make an informed decision.
Vehicle Details
| Registration | RN52 XNU |
| Make | Bmw |
| Model | 3 Series |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 2979cc |
| Year | 2003 |
| First registered | |
| Area code | RN — Reading, Reading |
| Age identifier | 52 — September 2002 to February 2003 |
More RN52 X plates
Browse all RN52 X registrations from Reading.
About RN52 XNU
What car is RN52 XNU?
RN52 XNU is an black Bmw 3 Series, petrol (2979cc). First registered in Reading in 2003.
What is the mileage of RN52 XNU?
The last recorded mileage for RN52 XNU was 139,320 miles, recorded on 3 Jul 2025 during its most recent MOT test.
Has RN52 XNU passed its MOT?
RN52 XNU has had 25 MOT tests with a 76% pass rate (19 passes, 6 failures). It last passed on 3 Jul 2025.
Is RN52 XNU ULEZ compliant?
Based on its fuel type and registration year, RN52 XNU is likely not ULEZ compliant. As a petrol vehicle registered in 2003, it typically does not meet the Euro 4 emission standard required. This is an estimate — confirm with TfL's ULEZ checker.
How old is RN52 XNU?
RN52 XNU is approximately 23 years old. Age identifier 52 means registered between 1 September 2002 and 28 February 2003.