2003 MG ZT 4.6L Petrol · BX03 TYZ
2003 MG ZT (4.6L, petrol). First registered 19 Mar 2003. Recorded mileage 137,955 miles. MOT expired on 12 May 2026.
- Make & Model
- MG ZT
- Year / Origin
- 2003 · Birmingham
- Safety Recall
- Unknown
- MOT Status
- Expired on 12 May 2026
- Road Tax
- —
- Recorded Mileage
- 137,955 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.
BX03 TYZ Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 28/04/2025
- 137,955 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
BX03 TYZ 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 2003 Mg Zt (BX03 TYZ) between April 2022 and April 2025.
The record contains 4 passes and 1 failure.
The most recent test on 28 April 2025 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
BX03 TYZ Mileage History
- 29/04/2022136,854 mi
- 03/05/2023137,509 mi+655 mi
- 09/05/2023137,510 mi+1 mi
- 01/05/2024137,835 mi+325 mi
- 28/04/2025137,955 mi+120 mi
Average of roughly 367 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: Below 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 2003 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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