2003 MG ZR 1.8L Petrol · R55 MGX
2003 MG ZR (1.8L, petrol). First registered 29 Nov 2003. Recorded mileage 49,134 miles. MOT valid until 19 Jun 2027.
- Make & Model
- MG ZR
- Year / Origin
- 2003 · Reading
- Safety Recall
- Unknown
- MOT Status
- Valid until 19 Jun 2027
- Road Tax
- —
- Recorded Mileage
- 49,134 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 1.8L
- Reliability Guide
- Common Faults
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
R55 MGX Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 19/06/2026
- 49,134 miles recorded at latest MOT
- No defects recorded at the latest MOT
- Recurring brakes items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
R55 MGX MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
4 MOT tests are recorded for this 2003 Mg Zr (R55 MGX) between April 2022 and June 2026.
The record contains 4 passes and 0 failures.
The record shows no MOT failures, although 2 advisory notices note items to monitor.
Across all tests, the most frequently flagged areas are: Brakes (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 2 advisory notices are recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
R55 MGX Mileage History
- 22/04/202248,574 mi
- 20/06/202448,732 mi+158 mi
- 21/06/202549,064 mi+332 mi
- 19/06/202649,134 mi+70 mi
Average of roughly 135 miles per year across 4 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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Known faults for MG MG ZR
Our database tracks 5 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Good
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Common Problems: MG ZR
Known issues reported by owners and MOT testers.
- K-Series Head Gasket Failure (HGF)(Serious)
The K-Series engine is prone to head gasket failure due to its small coolant capacity and plastic locating dowels that allow the head to shift.
- SCU / BCU Failure (Pektron)(Moderate)
Later models (2003+) use a Pektron SCU that controls windows, fobs, and wipers. It is notorious for relay failure.
- Worn Front Suspension(Moderate)
The front suspension bushes and ball joints wear out, leading to vague steering, knocking noises, and poor handling. This is a common MOT failure point and can be exacerbated by hard driving.
- Coil Pack Failure(Moderate)
The ignition coil pack is known for failing on the ZR, causing misfires, rough running, and difficulty starting.
- Door Lock Failure(Moderate)
The door lock actuators, particularly on the driver's door, are known to fail, making it difficult to lock or unlock the car.
Vehicle & Plate History
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MG ZR Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2003 model year cars.
- K-Series Head Gasket Failure (HGF)Serious
The K-Series engine is prone to head gasket failure due to its small coolant capacity and plastic locating dowels that allow the head to shift.
- SCU / BCU Failure (Pektron)Moderate
Later models (2003+) use a Pektron SCU that controls windows, fobs, and wipers. It is notorious for relay failure.
- Worn Front SuspensionModerate
The front suspension bushes and ball joints wear out, leading to vague steering, knocking noises, and poor handling. This is a common MOT failure point and can be exacerbated by hard driving.
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