2004 MG ZR 1.8L Petrol · HT04 NPK
2004 MG ZR (1.8L, petrol). First registered 01 Jul 2004. Recorded mileage 19,736 miles. MOT valid until 20 May 2027. Taxed until 01 Nov 2026.
- Make & Model
- MG ZR
- Year / Origin
- 2004 · Portsmouth
- Safety Recall
- Unknown
- MOT Status
- Valid until 20 May 2027
- Road Tax
- Taxed (01 Nov 2026)
- Recorded Mileage
- 19,736 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- PETROL · 1.8L
- Reliability Guide
- Common Faults
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
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.
HT04 NPK Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 22/05/2026
- 19,736 miles recorded at latest MOT
- 1 historical MOT failure
- 3 defects noted at the latest MOT
- Recurring exhaust & emissions items (4 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
HT04 NPK 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 2004 Mg Zr (HT04 NPK) between October 2022 and May 2026.
The record contains 3 passes and 1 failure.
The most recent test on 22 May 2026 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Exhaust & Emissions (4 issues), Brakes (4 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 6 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.
Recorded failure items include: “Exhaust has a major leak of exhaust gases Rear silencer broken away (6.1.2 (a))”; “Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))”.
HT04 NPK Mileage History
- 13/10/202218,486 mi
- 13/10/202218,486 mi
- 29/10/202419,351 mi+865 mi
- 22/05/202619,736 mi+385 mi
Average of roughly 347 miles per year across 4 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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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.
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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 2004 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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