BMW 420d M Sport Mhev Auto: MOT pass rate and reliability data

The BMW 420d M Sport Mhev Auto passes its MOT first time more often than the average UK car, by 9.8 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 1,011 individual BMW 420d M Sport Mhev Auto tests. Nothing here is an estimate or a survey.

The numbers

What this means if you are buying one

A 86.5% first-time pass rate means roughly 14 in every 100 BMW 420d M Sport Mhev Autos presented for MOT fail on the first attempt. That is better than average, so a well-kept example is a reasonably safe used buy. The average BMW 420d M Sport Mhev Auto tested had covered 29,879 miles and was built around 2021.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. On a BMW 420d M Sport Mhev Auto bought as a repairable salvage, the mechanical side is less likely to spring surprises, so your repair estimate should hold up reasonably well.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific BMW 420d M Sport Mhev Auto rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see what damaged BMW 420d M Sport Mhev Autos actually sold for at UK salvage auction.

Most common MOT failures on a BMW 420d M Sport Mhev Auto

1. A tyre seriously damaged, 4.7% of tests (2.36x the national rate for this defect)
2. Tyre tread depth not in accordance with the requirements, 1.2% of tests
3. A tyre cords visible or damaged, 0.9% of tests
4. Engine MIL illuminated indicating a malfunction, 0.4% of tests
5. Wiper blade missing or obviously not clearing the windscreen, 0.3% of tests
6. A tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber, 0.3% of tests (1.89x the national rate for this defect)
7. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 0.3% of tests
8. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.3% of tests
9. Number plate does not conform to the specified requirements, 0.2% of tests (1.35x the national rate for this defect)
10. A tyre pressure monitoring system malfunctioning or obviously inoperative, 0.2% of tests

From 2,275 DVSA-tracked BMW 420d M Sport Mhev Auto tests, 2024. DVSA testers marked 18.21% of these flagged BMW 420d M Sport Mhev Auto defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

Other BMW models

• BMW 3 Series - 76.8%
• BMW 118 - 81.9%
• BMW 116 - 78.6%
• BMW X1 - 85.2%
• BMW X3 - 82.3%
• BMW X5 - 81.2%
• BMW 1 Series - 81.6%
• BMW 520 - 80.2%

Models with a similar pass rate

• Peugeot 208 GT Ev - 86.5%
• Vauxhall Corsa Sri Nav Premium Turbo - 86.5%
• Lexus Rx 450h Luxury Cvt - 86.5%
• Peugeot 3008 GT S/S Phev 4x4 Auto - 86.5%
• Peugeot 5008 GT Prem P-Tech S/S Auto - 86.5%
• Audi A4 S Ln Black Ed 35tdi Mhev Sa - 86.5%

If this car is a salvage or write-off

• What does Cat N mean? Category N explained
• What does Cat S mean? Category S explained
• Cat S vs Cat N: the real differences

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