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Mercedes Benz G (2021)

377 real MOT outcomes analysed • 94.9% first-time pass rate

2021 Mercedes Benz G

CarHunch analysed 377 real MOT records for the 2021 Mercedes Benz G. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Generally reliable 14.9% above UK average
94.9%
pass MOT first time
UK average: ~80%
24,189
typical mileage
17,162–32,638 middle half
7.2%
ever had a dangerous defect
recorded at any MOT
0.16
avg MOT failures per car
over 2.1 tests on record

What to check before buying a 2021 Mercedes Benz G

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Mercedes Benz G

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (96%) 363 94.9% 0.16
Diesel (3%) 13 93.6% 0.23
Hybrid Electric (Clean) (0%) 1 100% 0

Mileage Distribution

Most 2021 Mercedes Benz G vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

17,162
low mileage
24,189
typical
32,638
high mileage

Half of all 2021 Mercedes Benz G vehicles fall between 17,162 and 32,638 miles.

2021 Mercedes Benz G — Still on the Road

Strong survival — 354 vehicles still getting MOTs in 2025, 100% of the peak.

18 354 2023 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

2.1
Avg MOT tests per vehicle
0.16
Avg failures per vehicle
0.9
Avg advisories per vehicle

Most Common MOT Issues — 2021 Mercedes Benz G

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 24.3%
    Nearside Front Tyre worn close to legal limit/worn on edge
  • 20.5%
    Offside Front Tyre worn close to legal limit/worn on edge
  • 14%
    Rear Brake pad(s) wearing thin
  • 13.6%
    Front Brake pad(s) wearing thin
  • 11.8%
    Offside Rear Tyre worn close to legal limit/worn on edge
  • 9.3%
    Nearside Rear Tyre worn close to legal limit/worn on edge
  • 6.9%
    Nearside Rear Nail in tyre ()
  • 5.6%
    Offside Rear Nail in tyre ()

Data covers a 3-year window centred on 2021. Counts include advisories and failures.

Found a specific Mercedes Benz G?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Mercedes Benz G:

2019 2020 2022