1998 Alfa Romeo 156 2.5L Petrol · S56 NGM
1998 Alfa Romeo 156 (2.5L, petrol). First registered 09 Sept 1998. Recorded mileage 131,890 miles. MOT expired on 20 Jun 2025.
- Make & Model
- ALFA ROMEO 156
- Year / Origin
- 1998 · Glasgow
- Safety Recall
- Unknown
- MOT Status
- Expired on 20 Jun 2025
- Road Tax
- —
- Recorded Mileage
- 131,890 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 2.5L
- 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.
S56 NGM Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 21/06/2024
- 131,890 miles recorded at latest MOT
- 2 historical MOT failures
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
S56 NGM 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 1998 Alfa Romeo 156 (S56 NGM) between November 2022 and June 2024.
The record contains 2 passes and 2 failures.
The most recent test on 21 June 2024 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
S56 NGM Mileage History
- 02/11/2022122,281 mi
- 24/10/2023130,831 mi+8,550 mi
- 17/04/2024131,850 mi+1,019 mi
- 21/06/2024131,890 mi+40 mi
Average of roughly 5,880 miles per year across 4 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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Known faults for Alfa Romeo Alfa Romeo 156
Our database tracks 3 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: ALFA ROMEO 156
Known issues reported by owners and MOT testers.
- Cam Variator Rattle and Cam Belt Wear(Serious)
The Twin Spark engines on the 156 use a cam variator to adjust valve timing. When worn, it produces a distinctive diesel-like rattle on startup that lasts a few seconds. Alfa originally specified a 72,000-mile cam belt interval but reduced this to 36,000 miles from November 2006. A failed cam belt causes catastrophic engine damage.
- V6 Water Pump Failure(Serious)
The 2.5 and 3.2 litre Busso V6 engines on the 156 use a water pump with a plastic impeller that can crack over time. This causes coolant loss, overheating and potential engine damage. Alfa Workshop recommends replacing the water pump at the same time as the cam belt, typically every 60,000 miles on V6 models.
- Air Flow Meter Failure(Moderate)
The 156's air flow meter (MAF sensor) can fail, causing poor engine performance, hesitation, rough idle and increased fuel consumption. A faulty MAF sends incorrect airflow data to the ECU, resulting in incorrect fuelling. Replacement sensors cost around £120 and are a common fault on higher-mileage examples.
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ALFA ROMEO 156 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 1998 model year cars.
- Cam Variator Rattle and Cam Belt WearSerious
The Twin Spark engines on the 156 use a cam variator to adjust valve timing. When worn, it produces a distinctive diesel-like rattle on startup that lasts a few seconds. Alfa originally specified a 72,000-mile cam belt interval but reduced this to 36,000 miles from November 2006. A failed cam belt causes catastrophic engine damage.
- V6 Water Pump FailureSerious
The 2.5 and 3.2 litre Busso V6 engines on the 156 use a water pump with a plastic impeller that can crack over time. This causes coolant loss, overheating and potential engine damage. Alfa Workshop recommends replacing the water pump at the same time as the cam belt, typically every 60,000 miles on V6 models.
- Air Flow Meter FailureModerate
The 156's air flow meter (MAF sensor) can fail, causing poor engine performance, hesitation, rough idle and increased fuel consumption. A faulty MAF sends incorrect airflow data to the ECU, resulting in incorrect fuelling. Replacement sensors cost around £120 and are a common fault on higher-mileage examples.
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