Model Reports 8 min read Updated 11 Sep 2026 DVSA open data · 1,200 tests analysed

Mercedes-Benz Gle 2015: reliability & common MOT faults

135 first-attempt MOT failures were recorded on the 2015 Mercedes-Benz Gle in 2025. Figures are among first-attempt failed MOT tests, not among all tests.

2015 Gles break the Gle's own run — at 88.8% they land 3.0 pp above the 2016 cars next to them.

First-attempt pass

88.8%

of 1,200 first tests (2025)

First tests

1,200

test year 2025

Failed first attempts

135

failed first-attempt tests

MOT pass rates

First-attempt and official-style rates among class 4 first tests of the year.

First-attempt pass

88.8%

of 1,200 first tests (2025)

Official-style pass

90.6%

incl. same-day PRS fixes

First tests

1,200

class 4 · first MOT of the year

Typical age 10.0 yrs · median mileage 82,918 mi

vs 2024: +2.0 pp first-attempt

Note:

  • Class 4 cars · first MOT of the year per vehicle · P/PRS/F outcomes (2025 data).
  • PRS (fixed at the station the same day) counts as a fail in the first-attempt rate.
  • Raw outcomes for this cohort — not adjusted for age, mileage, or peer mix.
  • MOT doesn't test engine or gearbox internals.

Wear patterns

Usage and mileage effects that often track road use rather than model design.

These patterns look like wear or usage effects rather than model-specific design faults. Tyres, brake friction material, and alignment-related defects often track mileage and road use.

Pattern Location Failures vs similar cars Share of fails Confidence
Tyres — Condition (front)
Tyres > Condition
 Front 26 ×2.6 19.3% Wear
Note: These patterns are not treated as a model design fault in our common-faults ranking.

If you are buying one

What this year's MOT record means for the decision in front of you.

This year outperforms the Gle's own age curve — it holds up better than its place in the model's run would predict.

Other Gle years worth knowing about

Newer cars always pass more often, so a plain "best year" list would just rank by age. These are the years that beat or miss the trend their own neighbouring years set — the only age-adjusted signal this data supports.

Year vs the years either side First-attempt pass (rises with newer cars) First tests
2016 Gle -1.8 pp worse 85.8% 5,138

Every figure here is a first-attempt MOT rate from DVSA open data for this model line. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.

FAQs

Short answers about how to read this model-year guide.

2015 Gles break the Gle's own run — at 88.8% they land 3.0 pp above the 2016 cars next to them. In 2025, 88.8% of 1,200 first MOTs on the 2015 Mercedes-Benz Gle passed first time (PRS — items fixed at the station the same day — counted as a fail). The official-style rate including PRS is 90.6%. Among 135 failed first-attempt MOT tests (test year 2025), we highlight MOT failure patterns that show up more often than o…
This page highlights MOT failure patterns for the 2015 Mercedes-Benz Gle (registration year) using UK DVSA open data for the selected test year. Patterns are compared with cars of a similar age and mileage. It is a buyer checklist from MOT defect statistics — not a full service history or manufacturer service-bulletin list.
No. MOT tests do not cover engine internals, gearboxes, or many electronic modules. Patterns here come from MOT defect statistics only and should not be read as engine or gearbox reliability scores.

About this data

How this page is built and what it can (and can't) say.

These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars — not a full reliability score, and not a pass/fail verdict on any individual vehicle.

2024 2025

What we include

UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.

Same-day repairs

PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.

How we compare

We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.

What this does not cover

  • MOTs do not cover engine internals, gearboxes, or many electronics — this is not a full reliability score.
  • Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
  • Age and mileage matching reduces — but does not remove — differences in how cars were used and maintained.
  • We never invent pass rates, star scores, or ranks when those data marts are missing.

Contains public sector information licensed under the Open Government Licence v3.0.

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