AutoRank

BMW 420I M SPORT AUTO - Model Report

Reliability, mileage, fuel mix, safety, and defect profile from AutoRank.

Reporting Period: Last 5 years Report Date: Generated today Filters: All years, fuels and engines autorank.co.uk/models/bmw/420i-m-sport-auto

Time Period & Model

Time period snapshot: Last 5 years

Manufacturer: BMW

Model: 420I M Sport Auto

Model reliability rank

MOT-based rank from 15,801 selected-period tests.

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Overall MOT pass rate

89.9%

Share of this model's 15,801 selected-period MOT tests that pass.

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Efficiency, emissions & tax

Average MPG

CO2 emission

Euro emissions

Tax cost

£200/yr

Vehicle list price over £40,000?NoYes

Average vehicle miles

30,306

Lower average mileage in the analysed fleet.

Life expectancy miles

Not enough data

Only 20 older vehicles found; not enough for an expectancy estimate.

Average vehicle age

3.7

Shorter age profile in the current analysed pool.

Vehicles represented

13,560

7,028 valid MOT, 6,532 under 3 years.

Tests analysed

15,801

15,801 MOT tests in the selected period.

Rarity ranking

Based on Make & Model

Scarce

13,560On the road

Insight summary

BMW 420I M Sport Auto is a scarce model in this snapshot, with 13,560 represented vehicles and 0.03% of the active UK pool tracked by AutoRank. For the last 5 years, it has a pass rate of 89.9% from 15,801 MOT tests, with a reliability score of 55. The current pool shows an average of 30,306 miles and an average age of 3.7 years. Petrol leads the fuel split, followed by other, and the most frequent defect themes are tyre condition, windscreen damage and registration plate does not conform to the specified requirements. The practical read is that the BMW 420I M Sport Auto looks like a solid used-car baseline rather than a rare find, with age, mileage and common wear items doing most of the explaining.

Fuel type breakdown (by model)

Fuel	Vehicles
PETROL	13,417
OTHER	141
DIESEL	1
ELECTRIC	1

Euro NCAP Safety

No NCAP tests found for this model.

Top 25 most common defects (by model)

Defect	Count
Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))	120
Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))	94
Offside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))	88
Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))	87
Nearside Front Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))	85
Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))	82
Offside Front Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))	74
Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))	74
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))	74
Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))	49
Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))	43
Front Registration plate does not conform to the specified requirements (0.1 (d))	42
Rear Registration plate does not conform to the specified requirements (0.1 (d))	41
Windscreen washer provides insufficient washer liquid (3.5 (a))	40
Nearside Rear Tyre has ply or cords exposed (5.2.3 (d) (ii))	38
Offside Headlamp aim too high (4.1.2 (a))	38
Nearside Headlamp aim too high (4.1.2 (a))	37
Front Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))	30
Offside Front Outer Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))	26
Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))	26
Nearside Front Outer Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))	23
Nearside Rear Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))	23
Offside Rear Tyre has ply or cords exposed (5.2.3 (d) (ii))	23
Nearside Front Headlamp aim too high (4.1.2 (a))	22
Front Windscreen washer provides insufficient washer liquid (3.5 (a))	21

All 25 defects ranked by recorded countShowing 1,300 defects across this top 25 set

Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))

120

Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Offside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))

Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Nearside Front Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))

Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Offside Front Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))

Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))

Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))

Front Registration plate does not conform to the specified requirements (0.1 (d))

Rear Registration plate does not conform to the specified requirements (0.1 (d))

Windscreen washer provides insufficient washer liquid (3.5 (a))

Nearside Rear Tyre has ply or cords exposed (5.2.3 (d) (ii))

Offside Headlamp aim too high (4.1.2 (a))

Nearside Headlamp aim too high (4.1.2 (a))

Front Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Offside Front Outer Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))

Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))

Nearside Front Outer Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))

Nearside Rear Tyre has a bulge, caused by separation or partial failure of its structure (5.2.3 (d) (ii))

Offside Rear Tyre has ply or cords exposed (5.2.3 (d) (ii))

Nearside Front Headlamp aim too high (4.1.2 (a))

Front Windscreen washer provides insufficient washer liquid (3.5 (a))

BMW 420I M Sport Auto reliability and MOT data