Mercedes-Benz Gl: MOT pass rate and reliability data

The Mercedes-Benz Gl passes its MOT first time more often than the average UK car, by 7 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 3,248 individual Mercedes-Benz Gl tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate83.7%
UK national average76.7%
Difference+7 points
Tests analysed3,248
Average mileage at test97,815 miles
Average year of manufacture2013
Reliability rank1,313 of 2,005 models

What this means if you are buying one

A 83.7% first-time pass rate means roughly 16 in every 100 Mercedes-Benz Gls 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 Mercedes-Benz Gl tested had covered 97,815 miles and was built around 2013.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. On a Mercedes-Benz Gl 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 Mercedes-Benz Gl 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 Mercedes-Benz Gls actually sold for at UK salvage auction.

Most common MOT failures on a Mercedes-Benz Gl

  1. A wheel with a loose or missing wheel nut, bolt or stud, 0.5% of tests (1.94x the national rate for this defect)
  2. Engine MIL illuminated indicating a malfunction, 1.2% of tests (1.34x the national rate for this defect)
  3. A tyre cords visible or damaged, 1.5% of tests (1.26x the national rate for this defect)
  4. Tyre tread depth not in accordance with the requirements, 2.6% of tests
  5. A tyre seriously damaged, 1.7% of tests
  6. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 1% of tests
  7. Brake pipe damaged or excessively corroded, 0.9% of tests
  8. a brake lining or pad worn below 1.5mm, 0.7% of tests
  9. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 0.7% of tests
  10. A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 0.5% of tests

From 6,615 DVSA-tracked Mercedes-Benz Gl tests, 2024. DVSA testers marked 5.71% of these flagged Mercedes-Benz Gl defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

Mercedes-Benz Gl 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 Mercedes-Benz Gl year:

Mercedes-Benz Gl by fuel type

Diesel and petrol versions of the same car fail on different things, so the fuel type moves the number:

Other Mercedes-Benz models

Models with a similar pass rate

If this car is a salvage or write-off

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Mercedes-Benz Gl MOT pass rate badge: 83.7%

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All 2,005 models ranked by MOT pass rate