2004 MG ZT 4.6L Petrol · BW04 PHX
2004 MG ZT (4.6L, petrol). First registered 01 Jun 2004. Recorded mileage 85,234 miles. MOT valid until 29 Nov 2026. Taxed until 01 Sept 2026.
- Make & Model
- MG ZT
- Year / Origin
- 2004 · Birmingham
- Safety Recall
- Unknown
- MOT Status
- Valid until 29 Nov 2026
- Road Tax
- Taxed (01 Sept 2026)
- Recorded Mileage
- 85,234 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- PETROL · 4.6L
- 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.
BW04 PHX Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 30/11/2025
- 85,234 miles recorded at latest MOT
- 1 historical MOT failure
- 1 defect noted at the latest MOT
- Recurring tyres items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
BW04 PHX MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2004 Mg Zt (BW04 PHX) between September 2022 and November 2025.
The record contains 4 passes and 1 failure.
The most recent test on 30 November 2025 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: Tyres (2 issues), Bodywork (1 issue), Steering (1 issue). 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.
Recorded failure items include: “Offside Front Outer Integral body structure corroded to the extent that the rigidity of the assembly is significantly re”; “Tyre tread depth below requirements of 1.6mm both rears (5.2.3 (e))”; “Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))”.
BW04 PHX Mileage History
- 05/09/202267,225 mi
- 28/10/202372,194 mi+4,969 mi
- 22/10/202478,750 mi+6,556 mi
- 14/11/202585,227 mi+6,477 mi
- 30/11/202585,234 mi+7 mi
Average of roughly 5,565 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for MG MG ZT / ZT-T
Our database tracks 5 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Average
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 ZT
Known issues reported by owners and MOT testers.
- ECU Flooding (Blocked Drains)(Serious)
The plenum chamber drains block with leaves, causing water to rise and submerge the engine ECU.
- Front Coil Spring Breakage(Moderate)
The front coil springs are prone to snapping due to fierce corrosion, particularly on UK roads with salt and potholes. This is a common MOT failure.
- K-Series Head Gasket Failure (1.8 Petrol)(Serious)
The 1.8 K-Series petrol engine is prone to head gasket failure if the cooling system is neglected. Symptoms include overheating and oil/coolant mixing.
- Brake Pipe Corrosion(Serious)
The brake pipes can corrode, particularly in areas where road salt is used. This is a serious safety concern and a common MOT failure point.
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MG ZT 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.
- ECU Flooding (Blocked Drains)Serious
The plenum chamber drains block with leaves, causing water to rise and submerge the engine ECU.
- Front Coil Spring BreakageModerate
The front coil springs are prone to snapping due to fierce corrosion, particularly on UK roads with salt and potholes. This is a common MOT failure.
- K-Series Head Gasket Failure (1.8 Petrol)Serious
The 1.8 K-Series petrol engine is prone to head gasket failure if the cooling system is neglected. Symptoms include overheating and oil/coolant mixing.
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