BMW M135i Xdrive Auto: MOT pass rate and reliability data

The BMW M135i Xdrive Auto passes its MOT first time more often than the average UK car, by 14 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 8,138 individual BMW M135i Xdrive Auto tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate90.7%
UK national average76.7%
Difference+14 points
Tests analysed8,138
Average mileage at test28,037 miles
Average year of manufacture2020
Reliability rank582 of 2,005 models

What this means if you are buying one

A 90.7% first-time pass rate means roughly 9 in every 100 BMW M135i Xdrive 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 M135i Xdrive Auto tested had covered 28,037 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 M135i Xdrive 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 M135i Xdrive 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 M135i Xdrive Autos actually sold for at UK salvage auction.

Most common MOT failures on a BMW M135i Xdrive Auto

  1. Number plate does not conform to the specified requirements, 0.2% of tests (1.46x the national rate for this defect)
  2. 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, 0.2% of tests (1.39x the national rate for this defect)
  3. A tyre seriously damaged, 2.6% of tests (1.29x the national rate for this defect)
  4. Tyre tread depth not in accordance with the requirements, 1.3% of tests
  5. A tyre cords visible or damaged, 0.6% of tests
  6. a brake lining or pad worn below 1.5mm, 0.4% of tests
  7. Audible warning inoperative, 0.2% of tests
  8. Brake lining or pad worn down to wear indicator, 0.1% of tests
  9. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.1% of tests
  10. Wiper blade missing or obviously not clearing the windscreen, 0.1% of tests

From 20,625 DVSA-tracked BMW M135i Xdrive Auto tests, 2024. DVSA testers marked 9.9% of these flagged BMW M135i Xdrive Auto defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

BMW M135i Xdrive 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 M135i Xdrive Auto year:

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Models with a similar pass rate

If this car is a salvage or write-off

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BMW M135i Xdrive Auto MOT pass rate badge: 90.7%

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All 2,005 models ranked by MOT pass rate