1999 Porsche 911 3.4L Petrol · PIB 811
1999 Porsche 911 (3.4L, petrol). First registered 01 May 1999. Recorded mileage 102,811 miles. MOT expired on 07 Nov 2026. Taxed until 01 Nov 2026.
- Make & Model
- PORSCHE 911
- Year / Origin
- 1999 · Preston
- Safety Recall
- Unknown
- MOT Status
- Expired on 07 Nov 2026
- Road Tax
- Taxed (01 Nov 2026)
- Recorded Mileage
- 102,811 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.
PIB 811 Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 29/10/2025
- 102,811 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
- Recurring brakes items (13 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
PIB 811 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 (PIB 811) between November 2022 and October 2025.
The record contains 4 passes and 1 failure.
The most recent test on 29 October 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: Brakes (13 issues), Suspension (4 issues), Bodywork (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 20 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: “Nearside Rear Road wheel has a welding defect Badly welded repair (5.2.2 (a))”; “Rear Brake pipe excessively corroded Caliper link pipes and fittings badly corroded (1.1.11 (c))”.
PIB 811 Mileage History
- 03/11/2022101,898 mi
- 12/10/2023102,395 mi+497 mi
- 15/10/2024102,661 mi+266 mi
- 08/11/2024102,662 mi+1 mi
- 29/10/2025102,811 mi+149 mi
Average of roughly 306 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: 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.
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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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