2005 Porsche 911 3.8L Petrol · GN55 AVV
2005 Porsche 911 (3.8L, petrol). First registered 27 Sept 2005. Recorded mileage 115,666 miles. MOT expired on 22 Jul 2026.
- Make & Model
- PORSCHE 911
- Year / Origin
- 2005 · Maidstone
- Safety Recall
- Unknown
- MOT Status
- Expired on 22 Jul 2026
- Road Tax
- —
- Recorded Mileage
- 115,666 mi
- ULEZ Compliance
- Likely ULEZ Compliant (Early Euro 4)
- Fuel & Engine
- Petrol · 3.8L
- 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.
GN55 AVV Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 24/07/2025
- 115,666 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
- Recurring exhaust & emissions items (4 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
GN55 AVV 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 2005 Porsche 911 (GN55 AVV) between October 2022 and July 2025.
The record contains 3 passes and 1 failure.
The most recent test on 24 July 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: Exhaust & Emissions (4 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
Recorded failure items include: “Exhaust carbon monoxide content at idle exceeds manufacturer's specified limits (8.2.1.2 (b))”; “Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))”; “Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))”.
GN55 AVV Mileage History
- 13/10/2022109,059 mi
- 20/12/2023114,781 mi+5,722 mi
- 20/12/2023114,781 mi
- 24/07/2025115,666 mi+885 mi
Average of roughly 2,377 miles per year across 4 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Porsche Porsche 911 (997)
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 2005 model year cars.
- Bore Scoring (Gen 1)Serious
The Lokasil/Alusil cylinder liners degrade, causing the piston to score the walls. Eventually requires a full rebuild.
- IMS Bearing (997.1)Serious
While the 997.1 uses a larger bearing than the 996, early 2005 models still use the smaller bearing. Later 997.1 cars use a larger, more robust bearing but failure is still possible.
- Cracked Ignition Coil PacksModerate
The coil packs on 997 engines are prone to cracking and failing, causing misfires. A relatively inexpensive fix but common across all variants.
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