1999 Porsche 911 3.4L Petrol · C21 FAT
1999 Porsche 911 (3.4L, petrol). First registered 10 Feb 1999. Recorded mileage 88,898 miles. MOT valid until 04 May 2027.
- Make & Model
- PORSCHE 911
- Year / Origin
- 1999 · Cardiff
- Safety Recall
- Unknown
- MOT Status
- Valid until 04 May 2027
- Road Tax
- —
- Recorded Mileage
- 88,898 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.
C21 FAT Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 05/05/2026
- 88,898 miles recorded at latest MOT
- No defects recorded at the latest MOT
- Recurring tyres items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
C21 FAT 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 1999 Porsche 911 (C21 FAT) between May 2022 and May 2026.
The record contains 5 passes and 0 failures.
The record shows no MOT failures, although 5 advisory notices note items to monitor.
Across all tests, the most frequently flagged areas are: Tyres (2 issues), Suspension (1 issue), Exhaust & Emissions (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 5 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.
C21 FAT Mileage History
- 06/05/202273,969 mi
- 04/05/202375,881 mi+1,912 mi
- 01/05/202480,634 mi+4,753 mi
- 28/04/202584,644 mi+4,010 mi
- 05/05/202688,898 mi+4,254 mi
Average of roughly 3,735 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 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: 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.
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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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