Aston Martin DB9 MOT Pass Rate & Official DVSA Failure Statistics

Aston Martin DB9 MOT History and Failure Rates vs UK National Average

The Aston Martin DB9 passed on its first attempt in 91.5%, and its overall record sits +10.9 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Aston Martin DB9 in the 2023–2025 data: 13,297 tests across 14 model years (2004–2017). A test still carries exactly one pass or fail verdict.

Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.

Most Common Aston Martin DB9 MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Aston Martin DB9, the Lamps, reflectors and electrical equipment section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.

Shares are over the Aston Martin DB9's recorded defect strings, merged across its year pages.

Top Recorded Aston Martin DB9 DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Aston Martin DB9, each with how many of the model's 13,297 tests it was noted on.

• "Windscreen damaged but not adversely affecting driver's view" (Minor) — noted on about 180 Aston Martin DB9 tests, 1.4% of the model's MOT record.
• "Position lamp not working" (Major) — noted on about 162 Aston Martin DB9 tests, 1.2% of the model's MOT record.
• "Malfunction indicator lamp inoperative or indicates a malfunction" (Rectified) — noted on about 157 Aston Martin DB9 tests, 1.2% of the model's MOT record.
• "Coil spring fractured or broken" (Major) — noted on about 121 Aston Martin DB9 tests, 0.9% of the model's MOT record.
• "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 109 Aston Martin DB9 tests, 0.8% of the model's MOT record.
• "Wipers blade defective" (Minor) — noted on about 91 Aston Martin DB9 tests, 0.7% of the model's MOT record.

Best and Worst Aston Martin DB9 Model Years by Pass Rate

The strongest Aston Martin DB9 model year on record is 2017 (99.0% across 97 tests), and the weakest is 2004 (90.3%). The gap between them is 8.7 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Aston Martin DB9 reliability is improving in the DVSA data — the pass rate moves about 1.6 points a year across the most recent model years shown above.

Newest model year first. Only years with at least 50 recorded tests are listed.

Pre-MOT Inspection Checklist for Aston Martin DB9 Owners

These checks follow this Aston Martin DB9's own most-recorded failure strings, starting with what a tester is most likely to flag on a Aston Martin DB9.

• the windscreen — “windscreen damaged”

  Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.

• the lights — “position lamp not working”

  Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.

• the coil springs — “coil spring fractured or broken”

  Look up inside each wheel arch with a torch, all the way round the spring. A snapped spring usually breaks at the very bottom coil, where a quick glance will not reach.

Derived from the DVSA failure strings testers recorded for the Aston Martin DB9. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Where the Aston Martin DB9 is most common

Across every DB9 model year on record (2004–2017): 6,736 Aston Martin DB9 cars tested in a recordable postcode area, across 13,295 tests. Ashford (TN) has the most, with 242 cars tested there. Cars are counted by the postcode area of the MOT station, so this is where they were tested, not necessarily where their owners live.

The twenty areas with the most Aston Martin DB9 cars in the record, sorted by car count — sort the columns for a different question. Cars tested at a station whose postcode area could not be resolved are counted in the model's total but in no area, so the shares add up to slightly under 100% even across every area, and an area's cars are a subset of the model's. Pass rate is blank below 30 tests in an area, where a percentage is noise rather than a finding. How this model's pass rate varies by postcode →

Frequently Asked Questions: Aston Martin DB9 MOT & Reliability