BMW 430i M Sport Auto: MOT pass rate and reliability data

The BMW 430i M Sport Auto passes its MOT first time more often than the average UK car, by 13.3 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 708 individual BMW 430i M Sport Auto tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate90%
UK national average76.7%
Difference+13.3 points
Tests analysed708
Average mileage at test23,945 miles
Average year of manufacture2021
Reliability rank710 of 2,005 models

What this means if you are buying one

A 90% first-time pass rate means roughly 10 in every 100 BMW 430i M Sport 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 430i M Sport Auto tested had covered 23,945 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 430i M Sport 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 430i M Sport 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 430i M Sport Autos actually sold for at UK salvage auction.

Most common MOT failures on a BMW 430i M Sport Auto

  1. A tyre seriously damaged, 4% of tests (1.96x the national rate for this defect)
  2. Tyre tread depth not in accordance with the requirements, 1.3% of tests
  3. A tyre cords visible or damaged, 0.4% of tests
  4. Number plate does not conform to the specified requirements, 0.3% of tests (1.96x the national rate for this defect)
  5. A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 0.3% of tests
  6. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.2% of tests
  7. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 0.2% of tests
  8. 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, 0.1% of tests
  9. The aim of a headlamp is not within limits laid down in the requirements, 0.1% of tests
  10. Excessive fluctuation in brake effort through each wheel revolution., 0.1% of tests

From 1,569 DVSA-tracked BMW 430i M Sport Auto tests, 2024. DVSA testers marked 13.86% of these flagged BMW 430i M Sport Auto defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

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All 2,005 models ranked by MOT pass rate