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Mercedes GLS 400 Night Edition D 4MAT A MOT Pass Rate and Running Costs

Reliability, estimated running costs, and MOT data across 1 model year from 40 MOT tests in 2024.

Avg Pass Rate

95%

Total Tests

40

Model Year

2021

Years Covered

1

About the Mercedes GLS 400 Night Edition D 4MAT A

The Mercedes GLS 400 Night Edition D 4MAT A was MOT tested 40 times in 2024 (DVSA data, retests included) across 1 model year (2021), with an average pass rate of 95%. That's comfortably above the average of 82% across all models in our data. Our records list diesel versions.

Compared to the Mercedes brand average of 87%, the GLS 400 Night Edition D 4MAT A performs 8 points better, making it one of the more reliable options in the Mercedes range.

Estimated Running Costs

Fuel (Diesel, 2925cc)
£1,676
Road Tax
£200
MOT Test
£55
Predicted Repairs
£200
Total per year£2,131
Per month£178/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Mercedes GLS 400 Night Edition D 4MAT A?

vs average of all models+13% (82% avg)
vs Mercedes brand average+8% (87% avg)

Mercedes GLS 400 Night Edition D 4MAT A by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

YearPass RateTestsAvg Mileage
202195%4027,680 mi

Questions about the Mercedes GLS 400 Night Edition D 4MAT A

Is the Mercedes GLS 400 Night Edition D 4MAT A reliable?

Across its 1 model year in our data (2021), the Mercedes GLS 400 Night Edition D 4MAT A averages a 95% MOT pass rate, from 40 tests (DVSA MOT data for tests in 2024, retests included). That's 13 points above the average of 82% across all models in the same data.

Mercedes GLS 400 Night Edition D 4MAT A Guides & Articles

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