2005 Proton GEN-2 1.3L Petrol · YX05 ACF
2005 Proton GEN-2 (1.3L, petrol). First registered 05 Jul 2005. Recorded mileage 80,417 miles. MOT expired on 11 Mar 2026.
- Make & Model
- PROTON GEN-2
- Year / Origin
- 2005 · Beverley / Hull
- Safety Recall
- Unknown
- MOT Status
- Expired on 11 Mar 2026
- Road Tax
- Untaxed (25 Aug 2026)
- Recorded Mileage
- 80,417 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 1.3L
- Reliability Guide
- Common Faults
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YX05 ACF Key Findings
- 5 MOT tests recorded
- Latest MOT failed on 10/03/2026
- 80,417 miles recorded at latest MOT
- 2 historical MOT failures
- 5 defects noted at the latest MOT
- Recurring lighting items (4 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
YX05 ACF 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 2005 Proton Gen-2 (YX05 ACF) between March 2023 and March 2026.
The record contains 3 passes and 2 failures.
The most recent test on 10 March 2026 was a fail; the vehicle has not passed its last recorded MOT.
Across all tests, the most frequently flagged areas are: Lighting (4 issues), Tyres (2 issues), Bodywork (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 2 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: “Macpherson strut mounting corroded and seriously weakened Top Mount (5.3.3 (b) (i))”; “Vehicle structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting En”; “Sub-frame corroded and seriously weakened (5.3.3 (b) (i))”.
YX05 ACF Mileage History
- 07/03/202367,950 mi
- 29/02/202470,043 mi+2,093 mi
- 11/03/202575,793 mi+5,750 mi
- 12/03/202575,793 mi
- 10/03/202680,417 mi+4,624 mi
Average of roughly 4,143 miles per year across 5 recorded odometer readings.
Technical Specifications
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Known faults for Proton Proton GEN-2
Our database tracks 5 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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PROTON GEN-2 Model Intelligence & Reliability
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Owner-reported defects, recurring MOT failure points, and estimated repair costs.
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Historical MOT pass rates and DVLA records for 2005 model year cars.
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The 1.6-litre CamPro S4PH engine utilizes an electronic throttle body assembly that is prone to oil mist and carbon contamination from the positive crankcase ventilation (PCV) system. Over time, gummy carbon deposits accumulate around the throttle butterfly plate and idle bypass bore. This disrupts the airflow calculations of the engine control unit (ECU), causing erratic idle hunting between 600 rpm and 1,300 rpm, delayed throttle response when pulling away, and sudden engine stalling when dipping the clutch at roundabouts or traffic lights. Cleaning the throttle assembly and performing an ECU idle relearn procedure is required to restore smooth operation.
- Rear Brake Caliper Slider Pin Seizure and Handbrake InefficiencyModerate
The Proton GEN-2 is equipped with rear solid disc brakes that incorporate an internal mechanical handbrake actuator lever on each caliper. Exposed to corrosive UK road salt and road wash, the rubber slider pin dust gaiters split and allow moisture into the guide bores. This causes the steel pins and internal handbrake return springs to corrode and seize. As a result, the rear brake pads drag persistently against the rotor, generating excessive brake dust, overheating the rear hubs, and leading to MOT failures for inadequate parking brake efficiency or brake effort imbalance exceeding 30 percent.
- Front Suspension Coil Spring Fracture and Anti-Roll Bar Drop Link PlayModerate
While Lotus tuned the GEN-2 suspension for crisp roadholding, British speed bumps and severe winter potholes place immense stress on the front MacPherson strut assemblies. The protective plastic coating on the front coil springs chips easily from road grit, allowing road salt to initiate rust pitting along the lower pig-tail coils, which eventually fracture under compression. Concurrently, the front anti-roll bar drop link ball joints and mounting bushes wear out quickly, generating metallic rattling noises over broken road surfaces and leading to an immediate UK MOT test failure.
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