1999 Porsche 911 3.4L Petrol · T557 ALR
1999 Porsche 911 (3.4L, petrol). First registered 31 Dec 1999. Recorded mileage 125,104 miles. MOT expired on 03 Mar 2026.
- Make & Model
- PORSCHE 911
- Year / Origin
- 1999
- Safety Recall
- Unknown
- MOT Status
- Expired on 03 Mar 2026
- Road Tax
- —
- Recorded Mileage
- 125,104 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 3.4L
- 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.
T557 ALR Key Findings
- 1 MOT test recorded
- Latest MOT passed on 04/03/2025
- 125,104 miles recorded at latest MOT
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
T557 ALR MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
1 MOT test are recorded for this 1999 Porsche 911 (T557 ALR) between March 2025 and March 2025.
The record contains 1 pass and 0 failures.
The record shows no MOT failures, although 0 advisory notices note items to monitor.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Porsche Porsche 911 (996)
Our database tracks 4 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.
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PORSCHE 911 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 1999 model year cars.
- IMS Bearing FailureSerious
Early M96 engines can suffer intermediate shaft bearing failure, leading to major internal damage.
- Rear Main Seal Oil LeakModerate
The rear main seal between engine and gearbox degrades over time, causing oil to leak into the bellhousing area. Often mistaken for IMS failure.
- Coolant Pipe FailuresModerate
The coolant crossover pipes and thermostat housing o-rings perish, causing coolant loss and potential overheating. Plastic degrades with heat cycles.
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