Audi S4 MOT Pass Rate & Official DVSA Failure Statistics

Audi S4 MOT History and Failure Rates vs UK National Average

The Audi S4 passed on its first attempt in 86.4%, and its overall record sits +6.8 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Audi S4 in the 2023–2025 data: 7,748 tests across 19 model years (2000–2022). 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 Audi S4 MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Audi S4, the Suspension 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 Audi S4's recorded defect strings, merged across its year pages.

Top Recorded Audi S4 DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Audi S4, each with how many of the model's 7,748 tests it was noted on.

• "Windscreen damaged but not adversely affecting driver's view" (Minor) — noted on about 218 Audi S4 tests, 2.8% of the model's MOT record.
• "Ball joint dust cover severely deteriorated" (Minor) — noted on about 176 Audi S4 tests, 2.3% of the model's MOT record.
• "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 151 Audi S4 tests, 1.9% of the model's MOT record.
• "Joints constant velocity boot severely deteriorated" (Minor) — noted on about 119 Audi S4 tests, 1.5% of the model's MOT record.
• "Has a cut in excess of the requirements deep enough to reach the ply or cords" (Major) — noted on about 94 Audi S4 tests, 1.2% of the model's MOT record.
• "Coil spring fractured or broken" (Major) — noted on about 88 Audi S4 tests, 1.1% of the model's MOT record.

Best and Worst Audi S4 Model Years by Pass Rate

The strongest Audi S4 model year on record is 2015 (92.9% across 70 tests), and the weakest is 2003 (77.9%). The gap between them is 15.0 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

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

Pre-MOT Inspection Checklist for Audi S4 Owners

These checks follow this Audi S4's own most-recorded failure strings, starting with what a tester is most likely to flag on a Audi S4.

• 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 suspension joints — “ball joint dust cover severely deteriorated”

  With the car parked on level ground, rock the top of each front wheel in and out while someone watches the suspension arm. Clunks, or rubber boots split and greasy, are what testers record here.

• the lights — “registration plate lamp(s) inoperative in the case of multiple lamps or light sources”

  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.

Derived from the DVSA failure strings testers recorded for the Audi S4. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Where the Audi S4 is most common

Across every S4 model year on record (2000–2022): 4,207 Audi S4 cars tested in a recordable postcode area, across 7,745 tests. Birmingham (B) has the most, with 135 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 Audi S4 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: Audi S4 MOT & Reliability