2009 Mercedes-Benz A-Class: petrol or diesel?
Petrol, diesel and hybrid versions go wrong in different ways, so each has its own figures from the MOTs these cars had during 2023–2025. Pick the one you’re looking at: the fuel is on the logbook and in the car’s MOT history.
Hybrid versions had too few MOTs for figures of their own, or weren’t sold.
Known faults on every 2009 Mercedes-Benz A-Class
Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.
- All engines
Poor reliability: suspension and electrical faults
Faults were incredibly common, especially suspension and electrical ones, and the average repair bill was over £500.
At the viewing: Get a pre-purchase inspection, listen for suspension knocks and test every electrical item.
Source: What Car?: used Mercedes-Benz A-Class (2005-2012) reliability
Looking at a Mercedes-Benz A-Class?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Mercedes-Benz A-Class compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2026 | – | Too new for MOT data |
| 2025 | – | Too new for MOT data |
| 2024 | – | Too new for MOT data |
| 2023 | 738 | Tyres 13% |
| 2022 | 18,713 | Tyres 23% |
| 2021 | 60,031 | Tyres 25% |
| 2020 | 252 | Tyres 27% |
| 2019 | 25,714 | Tyres 29% |
| 2018 | 119,754 | Tyres 32% |
| 2017 | 120,922 | Tyres 34% |
| 2016 | 113,202 | Tyres 33% |
| 2015 | 79,796 | Tyres 34% |
| 2014 | 68,784 | Tyres 34% |
| 2013 | 43,599 | Tyres 33% |
| 2012 | 15,427 | Brakes 32% |
| 2011 | 16,093 | Brakes 37% |
| 2010 | 18,296 | Brakes 41% |
| 2008 | 19,943 | Brakes 47% |
| 2007 | 17,982 | Brakes 45% |
| 2006 | 13,121 | Brakes 47% |
| 2005 | 8,721 | Brakes 41% |
| 2004 | 3,765 | Brakes 52% |
| 2003 | 3,911 | Brakes 53% |
| 2002 | 2,845 | Brakes 51% |
| 2001 | 1,837 | Brakes 49% |
| 2000 | 729 | Suspension 51% |
| 1999 | 496 | Suspension 53% |
| 1998 | – | Too few tests |