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Mercedes Benz B Class (2019)

571 real MOT outcomes analysed • 92.5% first-time pass rate

2019 Mercedes Benz B Class

CarHunch analysed 571 real MOT records for the 2019 Mercedes Benz B Class. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Generally reliable 12.5% above UK average
92.5%
pass MOT first time
UK average: ~80%
23,036
typical mileage
15,704–31,414 middle half
13.3%
ever had a dangerous defect
recorded at any MOT
0.43
avg MOT failures per car
over 4.8 tests on record

What to check before buying a 2019 Mercedes Benz B Class

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 B Class

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 (74%) 425 92.9% 0.41
Diesel (26%) 146 91.5% 0.49

Mileage Distribution

Most 2019 Mercedes Benz B Class 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.

15,704
low mileage
23,036
typical
31,414
high mileage

Half of all 2019 Mercedes Benz B Class vehicles fall between 15,704 and 31,414 miles.

2019 Mercedes Benz B Class — Still on the Road

Strong survival — 558 vehicles still getting MOTs in 2025, 100% of the peak.

103 558 2021 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

4.8
Avg MOT tests per vehicle
0.43
Avg failures per vehicle
2.8
Avg advisories per vehicle

Most Common MOT Issues — 2019 Mercedes Benz B Class

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

  • 29.7%
    Offside Front Tyre worn close to legal limit/worn on edge
  • 27.5%
    Nearside Front Tyre worn close to legal limit/worn on edge
  • 17.9%
    Front Brake pad(s) wearing thin
  • 17.5%
    Offside Rear Tyre slightly damaged/cracking or perishing
  • 16.6%
    Nearside Rear Tyre slightly damaged/cracking or perishing
  • 10.7%
    Rear Brake pad(s) wearing thin
  • 9.4%
    Front Brake disc worn, but not excessively
  • 7%
    Nearside Rear Child Seat fitted not allowing full inspection of adult belt ()

Data covers a 3-year window centred on 2019. Counts include advisories and failures.

Found a specific Mercedes Benz B Class?

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

UK

Other model years — Mercedes Benz B Class:

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018