BMW 840i Auto: MOT pass rate and reliability data

The BMW 840i Auto passes its MOT first time more often than the average UK car, by 10.5 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 1,673 individual BMW 840i Auto tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate87.2%
UK national average76.7%
Difference+10.5 points
Tests analysed1,673
Average mileage at test30,563 miles
Average year of manufacture2020
Reliability rank1,084 of 2,005 models

What this means if you are buying one

A 87.2% first-time pass rate means roughly 13 in every 100 BMW 840i 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 840i Auto tested had covered 30,563 miles and was built around 2020.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. On a BMW 840i 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 840i 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 840i Autos actually sold for at UK salvage auction.

Most common MOT failures on a BMW 840i Auto

  1. A tyre cords visible or damaged, 2.5% of tests (2.06x the national rate for this defect)
  2. Number plate does not conform to the specified requirements, 0.3% of tests (1.92x the national rate for this defect)
  3. A tyre seriously damaged, 3.4% of tests (1.69x the national rate for this defect)
  4. Tyre tread depth not in accordance with the requirements, 0.4% of tests
  5. The aim of a headlamp is not within limits laid down in the requirements, 0.3% of tests
  6. Any fracture or welding defect on a wheel, 0.2% of tests (5.33x the national rate for this defect)
  7. Wiper blade missing or obviously not clearing the windscreen, 0.2% of tests
  8. Emissions levels exceed default limits, 0.2% of tests
  9. A wheel with a loose or missing wheel nut, bolt or stud, 0.2% of tests
  10. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.1% of tests

From 4,813 DVSA-tracked BMW 840i Auto tests, 2024. DVSA testers marked 15.07% of these flagged BMW 840i Auto defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

BMW 840i Auto pass rate by model year

Pass rates fall steadily as cars age, so the model year matters as much as the model. First-time pass rate for each BMW 840i Auto year:

Other BMW models

Models with a similar pass rate

If this car is a salvage or write-off

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BMW 840i Auto MOT pass rate badge: 87.2%

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All 2,005 models ranked by MOT pass rate