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Smart Forfour Passion MOT Pass Rate & Official DVSA Failure Statistics

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Pass rate, every year

72.3% Below average

1,331 tests across 3 model years, 2004–2006.

−8.7 pts vs the national average

MOT PASS RATES

How the Smart Forfour Passion really fares

72.3% of its MOTs pass — over 1,331 class-4 tests, 2023–2025

Pass rates

Every figure on this page comes from the DVSA's MOT test record.

The Smart Forfour Passion MOT pass rate is 72.3%, −8.7 percentage points below the UK average. That is 1,331 DVSA MOT tests recorded between 2004 and 2006. This page lists the most common Smart Forfour Passion MOT failures by category, names the best and worst model years, and finishes with a pre-MOT checklist you can run at home.

Smart Forfour Passion MOT History and Failure Rates vs UK National Average

The Smart Forfour Passion passed on its first attempt in 64.3%, and its overall record sits −8.7 percentage points below the national average for all cars. These figures come from every recorded DVSA MOT test for the Smart Forfour Passion in the 2023–2025 data: 1,331 tests across 3 model years (2004–2006). A test still carries exactly one pass or fail verdict.

MeasureThis model
Tests analysed1,331
Overall pass rate72.3%
Passed on first attempt64.3%
Average mileage at test105,410 mi
Model years covered2004–2006 (3 years)
Versus UK national average−8.7 pts below

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

Most Common Smart Forfour Passion MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Smart Forfour Passion, 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.

Inspection section Share of failures Est. recorded instances
Lamps, reflectors and electrical equipment 56% 383
Suspension 20% 140
Steering 11% 73
Brakes 7% 51
Body, chassis, structure 6% 39

Shares are over the Smart Forfour Passion's recorded defect strings, merged across its year pages.

Lamps, reflectors and electrical equipment

Around 56% of the recorded Smart Forfour Passion failures fall in the Lamps, reflectors and electrical equipment section of the MOT inspection manual. Testers recorded "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (10.0%), "Headlamp lens slightly defective" (6.0%), "Headlamp aim projected beam image is obviously incorrect" (4.7%) among the Smart Forfour Passion's lamps, reflectors and electrical equipment faults.

Suspension

Around 20% of the recorded Smart Forfour Passion failures fall in the Suspension section of the MOT inspection manual. Testers recorded "Ball joint dust cover severely deteriorated" (8.2%), "Coil spring fractured or broken" (1.4%), "Ball joint dust cover no longer prevents the ingress of dirt" (0.9%) among the Smart Forfour Passion's suspension faults.

Steering

Around 11% of the recorded Smart Forfour Passion failures fall in the Steering section of the MOT inspection manual. Testers recorded "Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt" (5.5%) among the Smart Forfour Passion's steering faults.

Top Recorded Smart Forfour Passion DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Smart Forfour Passion, each with how many of the model's 1,331 tests it was noted on.

  • "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 133 Smart Forfour Passion tests, 10.0% of the model's MOT record.
  • "Ball joint dust cover severely deteriorated" (Minor) — noted on about 109 Smart Forfour Passion tests, 8.2% of the model's MOT record.
  • "Headlamp lens slightly defective" (Minor) — noted on about 80 Smart Forfour Passion tests, 6.0% of the model's MOT record.
  • "Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt" (Minor) — noted on about 73 Smart Forfour Passion tests, 5.5% of the model's MOT record.
  • "Headlamp aim projected beam image is obviously incorrect" (Major) — noted on about 62 Smart Forfour Passion tests, 4.7% of the model's MOT record.
  • "Rbt (sp) efficiency below requirements" (Major) — noted on about 51 Smart Forfour Passion tests, 3.8% of the model's MOT record.

Best and Worst Smart Forfour Passion Model Years by Pass Rate

The strongest Smart Forfour Passion model year on record is 2005 (72.8% across 562 tests), and the weakest is 2006 (71.7%). The gap between them is 1.1 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Year Tests Pass rate First attempt Avg mileage Most common failure
2006 Forfour Passion 583 71.7% 63.6% 101,276 mi Registration plate lamp(s) inoperative in the case o
2005 Forfour Passion 562 72.8% 64.6% 102,597 mi Ball joint dust cover severely deteriorated
2004 Forfour Passion 186 72.6% 65.3% 112,357 mi Ball joint dust cover severely deteriorated

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

Pre-MOT Inspection Checklist for Smart Forfour Passion Owners

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

  • 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.

  • 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 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 Smart Forfour Passion. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Frequently Asked Questions: Smart Forfour Passion MOT & Reliability

What is the Smart Forfour Passion MOT pass rate?

72.3% of the 1,331 recorded Smart Forfour Passion MOT tests ended in a pass, −8.7 percentage points below the national average. 64.3% of those passed on the first attempt.

Which Smart Forfour Passion model years pass the MOT most often?

2005 is the strongest Smart Forfour Passion year on record at 72.8%, while 2006 is the weakest at 71.7%. The year-by-year table below lists every model year with at least 50 recorded tests.

What are the most common Smart Forfour Passion MOT failures?

The most recorded Smart Forfour Passion failures are "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" and "Ball joint dust cover severely deteriorated" — together around 18% of tests, mostly in the Lamps, reflectors and electrical equipment section.