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Smart Forfour Passion Semi-Auto MOT Pass Rate & Official DVSA Failure Statistics

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Pass rate, every year

76.2% Around average

699 tests across 4 model years, 2004–2007.

−4.8 pts vs the national average

MOT PASS RATES

How the Smart Forfour Passion Semi-Auto really fares

76.2% of its MOTs pass — over 699 class-4 tests, 2023–2025

Pass rates

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

The Smart Forfour Passion Semi-Auto MOT pass rate is 76.2%, −4.8 percentage points below the UK average. That is 699 DVSA MOT tests recorded between 2004 and 2007. This page lists the most common Smart Forfour Passion Semi-Auto 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 Semi-Auto MOT History and Failure Rates vs UK National Average

The Smart Forfour Passion Semi-Auto passed on its first attempt in 70.6%, and its overall record sits −4.8 percentage points below the national average for all cars. These figures come from every recorded DVSA MOT test for the Smart Forfour Passion Semi-Auto in the 2023–2025 data: 699 tests across 4 model years (2004–2007). A test still carries exactly one pass or fail verdict.

MeasureThis model
Tests analysed699
Overall pass rate76.2%
Passed on first attempt70.6%
Average mileage at test92,710 mi
Model years covered2004–2007 (4 years)
Versus UK national average−4.8 pts below

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

Most Common Smart Forfour Passion Semi-Auto 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 Semi-Auto, 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 52% 178
Suspension 16% 55
Steering 11% 38
Visibility 10% 35
Brakes 6% 19
Noise, emissions and leaks 1% 5
Body, chassis, structure 1% 4
Seat belts and supplementary restraint systems 1% 4

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

Lamps, reflectors and electrical equipment

Around 52% of the recorded Smart Forfour Passion Semi-Auto failures fall in the Lamps, reflectors and electrical equipment section of the MOT inspection manual. Testers recorded "Headlamp lens slightly defective" (7.7%), "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (5.7%), "Position lamp not working" (4.0%) among the Smart Forfour Passion Semi-Auto's lamps, reflectors and electrical equipment faults.

Suspension

Around 16% of the recorded Smart Forfour Passion Semi-Auto failures fall in the Suspension section of the MOT inspection manual. Testers recorded "Ball joint dust cover severely deteriorated" (7.3%), "Coil spring fractured or broken" (0.6%) among the Smart Forfour Passion Semi-Auto's suspension faults.

Steering

Around 11% of the recorded Smart Forfour Passion Semi-Auto 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" (4.4%), "Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of…" (1.0%) among the Smart Forfour Passion Semi-Auto's steering faults.

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

The descriptions below are the exact DVSA failure strings testers recorded most often for the Smart Forfour Passion Semi-Auto, each with how many of the model's 699 tests it was noted on.

  • "Headlamp lens slightly defective" (Minor) — noted on about 54 Smart Forfour Passion Semi-Auto tests, 7.7% of the model's MOT record.
  • "Ball joint dust cover severely deteriorated" (Minor) — noted on about 51 Smart Forfour Passion Semi-Auto tests, 7.3% of the model's MOT record.
  • "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 40 Smart Forfour Passion Semi-Auto tests, 5.7% 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 31 Smart Forfour Passion Semi-Auto tests, 4.4% of the model's MOT record.
  • "Position lamp not working" (Major) — noted on about 28 Smart Forfour Passion Semi-Auto tests, 4.0% of the model's MOT record.
  • "Headlamp aim projected beam image is obviously incorrect" (Major) — noted on about 24 Smart Forfour Passion Semi-Auto tests, 3.4% of the model's MOT record.

Best and Worst Smart Forfour Passion Semi-Auto Model Years by Pass Rate

The strongest Smart Forfour Passion Semi-Auto model year on record is 2007 (78.1% across 151 tests), and the weakest is 2004 (73.4%). The gap between them is 4.7 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Smart Forfour Passion Semi-Auto 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.

Year Tests Pass rate First attempt Avg mileage Most common failure
2007 Forfour Passion Semi-Auto 151 78.1% 72.5% 95,470 mi Ball joint dust cover severely deteriorated
2006 Forfour Passion Semi-Auto 160 77.5% 73.5% 89,694 mi Headlamp lens slightly defective
2005 Forfour Passion Semi-Auto 294 75.5% 68.7% 94,693 mi Headlamp lens slightly defective
2004 Forfour Passion Semi-Auto 94 73.4% 68.0% 90,981 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 Semi-Auto Owners

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

  • the lights — “headlamp lens slightly defective”

    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 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.

Derived from the DVSA failure strings testers recorded for the Smart Forfour Passion Semi-Auto. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Frequently Asked Questions: Smart Forfour Passion Semi-Auto MOT & Reliability

What is the Smart Forfour Passion Semi-Auto MOT pass rate?

76.2% of the 699 recorded Smart Forfour Passion Semi-Auto MOT tests ended in a pass, −4.8 percentage points below the national average. 70.6% of those passed on the first attempt.

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

2007 is the strongest Smart Forfour Passion Semi-Auto year on record at 78.1%, while 2004 is the weakest at 73.4%. The year-by-year table below lists every model year with at least 50 recorded tests.

What are the most common Smart Forfour Passion Semi-Auto MOT failures?

The most recorded Smart Forfour Passion Semi-Auto failures are "Headlamp lens slightly defective" and "Ball joint dust cover severely deteriorated" — together around 15% of tests, mostly in the Lamps, reflectors and electrical equipment section.