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. The BMW M135i Xdrive Auto sits 14 points above the national average, ranked 582 of 2,005 models. On one bought as 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 recorded closing bids for damaged BMW M135i Xdrive Autos at UK salvage auction.

Most common MOT failures on a BMW M135i Xdrive Auto

  1. Number plate does not conform to the specified requirements, 0.4% of tests (2.13x 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, 0.4% of tests (1.9x the national rate for this defect)
  3. A tyre seriously damaged, 5.1% of tests (1.82x the national rate for this defect)
  4. Brake lining or pad worn down to wear indicator, 0.2% of tests (1.17x the national rate for this defect)
  5. Tyre tread depth not in accordance with the requirements, 2.6% of tests
  6. A tyre cords visible or damaged, 1.2% of tests
  7. a brake lining or pad worn below 1.5mm, 0.8% of tests
  8. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.3% of tests
  9. Wiper blade missing or obviously not clearing the windscreen, 0.3% of tests
  10. Audible warning inoperative, 0.3% of tests

From 8,131 DVSA-tracked BMW M135i Xdrive Auto tests, 2024. DVSA testers marked 11.66% of these flagged BMW M135i Xdrive Auto defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 5.11% nationally.

Most common MOT advisories on a BMW M135i Xdrive Auto

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a BMW M135i Xdrive Auto before it actually fails on it.

  1. Tyre tread depth not in accordance with the requirements, 21.6% of tests, also fails
  2. A tyre seriously damaged, 10.4% of tests, also fails
  3. a brake lining or pad worn below 1.5mm, 9.2% of tests, also fails
  4. Brake disc or drum excessively weakened, insecure or fractured, 1.1% of tests
  5. Brake disc or drum significantly and obviously worn, 0.5% of tests
  6. A suspension pin, bush or joint excessively worn, 0.3% of tests
  7. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 0.2% of tests
  8. A wheel badly distorted or wear between wheel and hub at spigot mounting, 0.2% of tests
  9. Number plate inscription missing or illegible, 0.1% of tests
  10. A seat belt webbing or flexible stalk significantly stretched or weakened, 0.1% of tests

From 8,131 DVSA-tracked BMW M135i Xdrive Auto tests, 2024.

BMW M135i Xdrive Auto pass rate by model year

From its 2019 to its 2021 model year, the BMW M135i Xdrive Auto's first-time pass rate has risen 0.4 points, from 90.2% to 90.6%, the usual pattern: a newer model year is a younger car today, so it fails less. First-time pass rate for each BMW M135i Xdrive 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 M135i Xdrive Auto MOT pass rate badge: 90.7%

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BMW M135i Xdrive Auto most common MOT failure: Number plate does not conform to the specified requirements (0.4% of tests)

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All 2,005 models ranked by MOT pass rate