Mercedes Benz A Class (2001)

16,753 real MOT outcomes analysed • 70.1% first-time pass rate

2001 Mercedes Benz A Class

CarHunch analysed 16,753 real MOT records for the 2001 Mercedes Benz A Class. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 2001 Mercedes-Benz A-Class has a first-time MOT pass rate of 70.1%, which is 10 points below the UK average of 80%—a meaningful reliability gap for a 23-year-old car. More concerning, nearly one in three of these vehicles (33.3%) have recorded a dangerous defect at some point, which is significantly higher than typical and should be a red flag for any buyer.

These A-Classes are averaging 70,277 miles, which is reasonable for their age, but the real issue lies in the maintenance burden: owners face an average of 4.62 failures and 18.8 advisories per test, suggesting components wear faster than rivals from the same era. Before committing to a purchase, insist on a full service history and an independent pre-buy inspection focused on suspension, electrics, and brake components—the weak spots that consistently trip up this generation.

Below average reliability 9.9% below UK average
70.1%
pass MOT first time
UK average: ~80%
65,678
typical mileage
52,901–79,207 middle half
33.3%
ever had a dangerous defect
recorded at any MOT
4.62
avg MOT failures per car
over 14.9 tests on record

Petrol vs Diesel

Pass rate difference of 1.5 percentage points — worth knowing if you're choosing between the two.

70.4%
Petrol
14,139 vehicles
68.9%
Diesel
2,612 vehicles

What to check before buying a 2001 Mercedes Benz A 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.
  • ⚠️ 33.3% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
  • 📄 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 A Class

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

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (84%) 14,139 70.4% 4.55
Diesel (16%) 2,612 68.9% 5.02
LPG (0%) 1 75% 3
Gas Bi-Fuel (0%) 1 69.2% 4

Mileage Distribution

Most 2001 Mercedes Benz A 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.

52,901
low mileage
65,678
typical
79,207
high mileage

Half of all 2001 Mercedes Benz A Class vehicles fall between 52,901 and 79,207 miles.

2001 Mercedes Benz A Class — Still on the Road

Numbers are declining — 777 vehicles still getting MOTs in 2023 (7% of peak).

11,272 777 2014 2023

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2023.

MOT History Averages

14.9
Avg MOT tests per vehicle
4.62
Avg failures per vehicle
18.8
Avg advisories per vehicle

Most Common MOT Issues — 2001 Mercedes Benz A Class

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

  • 86.3%
    Nearside Front Brake hose slightly deteriorated
  • 85.4%
    Offside Front Brake hose slightly deteriorated
  • 75.3%
    Offside Rear Brake pipe slightly corroded
  • 71.8%
    Nearside Front Tyre worn close to the legal limit
  • 70.1%
    Under-trays fitted obscuring some underside components
  • 68%
    Nearside Rear Brake pipe slightly corroded
  • 63.3%
    Offside Front Tyre worn close to the legal limit
  • 42.6%
    Offside Front Brake pipe slightly corroded

Data covers a 3-year window centred on 2001. Counts include advisories and failures.

Found a specific Mercedes Benz A 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 A Class:

1998 1999 2000 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020