IB Iris Bus Daily MOT Pass Rate & Official DVSA Failure Statistics

Iris Bus Daily MOT History and Failure Rates vs UK National Average

The Iris Bus Daily passed on its first attempt in 57.4%, and its overall record sits −14.7 percentage points below the national average for all cars. These figures come from every recorded DVSA MOT test for the Iris Bus Daily in the 2023–2025 data: 208 tests across 2 model years (2005–2006). 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 Iris Bus Daily MOT Problems by Failure Category

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

Top Recorded Iris Bus Daily DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Iris Bus Daily, each with how many of the model's 208 tests it was noted on.

• "Rear fog lamp not working" (Major) — noted on about 13 Iris Bus Daily tests, 6.2% of the model's MOT record.
• "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 12 Iris Bus Daily tests, 5.8% of the model's MOT record.
• "Battery(ies) insecure but not likely to fall from carrier" (Minor) — noted on about 8 Iris Bus Daily tests, 3.8% of the model's MOT record.
• "Position lamp not working" (Major) — noted on about 7 Iris Bus Daily tests, 3.4% of the model's MOT record.
• "Ball joint dust cover severely deteriorated" (Minor) — noted on about 7 Iris Bus Daily tests, 3.4% of the model's MOT record.
• "Rbt (sp) efficiency below requirements" (Major) — noted on about 6 Iris Bus Daily tests, 2.9% of the model's MOT record.

Best and Worst Iris Bus Daily Model Years by Pass Rate

The strongest Iris Bus Daily model year on record is 2006 (68.3% across 101 tests), and the weakest is 2005 (64.5%). The gap between them is 3.8 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 Iris Bus Daily Owners

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

• the lights — “rear fog 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 battery — “battery(ies) insecure”

  Check the battery is secure and its terminals are clean and tight — a loose battery is a fail on its own, and a weak one shows up as slow cranking on a cold morning.

• 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.

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

Frequently Asked Questions: Iris Bus Daily MOT & Reliability