Mercedes B-Class mini MPV (2012-2014) - Reliability & safety

Should live up to Mercedes’ reputation for flawless reliability

Carbuyer Rating

3.3 out of 5

Reliability & safety Rating

4.0 out of 5

Mercedes B-Class reliability

The material and build quality of the B-Class is first-rate and we expect it to be a very reliable car. There have been no major faults reported to date – although it’s still relatively new – and it comes with a three-year warranty, so if any issues do crop up in the first few years of ownership, you can be sure they’ll get sorted.

Mercedes has performed reasonably well in recent customer satisfaction surveys. It came eleventh out of 32 in our 2015 Driver Power manufacturer chart. Although this is a drop of two places on the previous year, it keeps the brand ahead of main rivals Audi and BMW.


The B-Class scored the full five stars in the Euro NCAP crash tests and every model comes with a range of safety technology, including airbags, electronic stability control, traction control, ISOFIX points for child seats and anti-lock brakes.

Also standard is Collision Prevention Assist, a system that automatically brakes the car if it senses an imminent crash. You can also choose from a range of optional safety kit, such as lane-keeping assistance and blind-spot detection, which are part of the Driving Assistance pack.

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