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Mercedes Benz Cla (2021)

6,097 real MOT outcomes analysed • 91% first-time pass rate

2021 Mercedes Benz Cla

CarHunch analysed 6,097 real MOT records for the 2021 Mercedes Benz Cla. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Generally reliable 11% above UK average
91%
pass MOT first time
UK average: ~80%
30,504
typical mileage
21,906–40,977 middle half
11.4%
ever had a dangerous defect
recorded at any MOT
0.3
avg MOT failures per car
over 2.4 tests on record

What to check before buying a 2021 Mercedes Benz Cla

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 Cla

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 (100%) 6,080 91% 0.3
Diesel (0%) 14 91.7% 0.29
Hybrid Electric (Clean) (0%) 3 77.8% 0.67

Mileage Distribution

Most 2021 Mercedes Benz Cla 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.

21,906
low mileage
30,504
typical
40,977
high mileage

Half of all 2021 Mercedes Benz Cla vehicles fall between 21,906 and 40,977 miles.

MOT History Averages

2.4
Avg MOT tests per vehicle
0.3
Avg failures per vehicle
1.9
Avg advisories per vehicle

Most Common MOT Issues — 2021 Mercedes Benz Cla

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

  • 29.1%
    Offside Front Tyre worn close to legal limit/worn on edge
  • 27.6%
    Nearside Front Tyre worn close to legal limit/worn on edge
  • 15.1%
    Offside Rear Tyre slightly damaged/cracking or perishing
  • 14.2%
    Front Brake pad(s) wearing thin
  • 14.2%
    Nearside Rear Tyre slightly damaged/cracking or perishing
  • 12.6%
    Rear Brake pad(s) wearing thin
  • 7.4%
    Offside Rear Tyre worn close to legal limit/worn on edge
  • 7.3%
    Nearside Rear Tyre worn close to legal limit/worn on edge

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

Found a specific Mercedes Benz Cla?

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

UK

Other model years — Mercedes Benz Cla:

2013 2014 2015 2016 2017 2018 2019 2020 2022 2023