Parkers overall rating: 3.8 out of 5 3.8
  • Hasn’t been tested by Euro NCAP yet
  • Similar A-Class achieved five stars
  • Long list of safety and driver assistance tech

The B-Class hasn’t been tested by Euro NCAP as of the beginning of 2019, but it stands in good stead for a five-star rating as the mechanically-similar A-Class achieved a five-star rating in 2018.

As standard, the B-Class comes with an active brake assist system, active lane-keep assist, an attention assist system, a full suite of airbags, automatic lights, speed limit assist, a tyre-pressure monitoring system and Isofix points in the rear seats.

You can boost the safety and driver assistance kit count significantly by specifying the Driving Assistance package, which includes:

  • Active blindspot assist – warns of cars in a blindspot and intervenes if the driver tries to change lanes
  • Active braking assist with cross-traffic function
  • Active distance assist – adaptive cruise control
  • Active emergency stop assist – autonomous emergency braking
  • Active lane-change assist
  • Active speed limit assist – reads traffic signs and adapts cruise control accordingly
  • Active steering assist – keeps you in the lane
  • Evasive steering assist – supports driver in evasive manoeuvres if the driver moves to avoid a pedestrian detected by the car
  • Pre-Safe Plus – detects rear-end collisions and locks brakes to avoid being shunted forwards
  • Route-based speed adjustment – adapts speed before curves, junctions and roundabouts 
  • B-Class should be a practical family MPV
  • There’s decent space for passengers
  • But boot space is disappointing

In terms of passenger space, the B-Class is a good buy. There’s easily enough room for two tall front-seat occupants, while even the rear seats offer a good amount of room.

Across the outer rear seats there’s useful amount of legroom – even with a tall driver and passenger – plus headroom is adequate for anyone under 6’3” – that tall body impresses here. As is often the case, however, the middle seat is best kept for kids. It’s quite narrow and the central tunnel running through the car robs any kind of foot room on offer.

Its compact exterior dimensions and impressive manoeuvrability also make it a doddle to drive in town. It’ll easily fit in parking spaces and the large windows and standard-fit reversing camera boost visibility.

The loadbay itself – while a bit high – is a useful shape with a flat floor and lots of handy extras such as a 12-volt socket, shopping bag hooks, netting and straps for larger items. An electronic tailgate is standard, and seats that split 40:20:40 are available as an option.

You will get more bootspace out of a Volkswagen Golf SV or BMW 2 Series Active Tourer with the rear seats in place, however fold them down and the B-Class has the edge on outright luggage capacity. With the seats in place the boot measures 445 litres, while with the seats down it offers 1,530 litres.

The boot isn’t big enough for a car that wants to sell itself as a family option, though. For example, with a pushchair, changing bag, and one bag of shopping the boot is completely packed.


All-round storage capacity is generous thanks to two large door pockets up front, a deep armrest compartment, decent-sized glovebox and two sizeable central cupholders. Meanwhile, rear seat passengers benefit from moderate-sized door pockets plus 12-volt and USB sockets. 

Basic equipment

The basic equipment list includes equipment that is standard across all versions of the Mercedes-Benz B-Class MPV.

  • 3x3 point rear seat belts
  • ABS
  • Alarm
  • Alloy wheels
  • Audio remote
  • Body coloured bumpers
  • Cruise control
  • Driver`s airbag
  • Electric mirrors
  • Folding rear seats
  • Front electric windows
  • Heated mirrors
  • Isofix child seat anchor points
  • Lumbar support
  • Parking sensors
  • PAS
  • Passenger`s airbag
  • Rear electric windows
  • Remote locking
  • Sat Nav
  • Service indicator
  • Side airbags
  • Steering wheel rake adjustment
  • Steering wheel reach adjustment
  • Traction control

Equipment by trim level

To view equipment options for a specific trim level, please select from the following list:

Equipment included on some trim levels
  • Climate control
  • Electric driver`s seat
  • Electric passenger`s seat
  • Heated seats
  • Height adjustable drivers seat
  • Metallic Paint
  • Partial leather seat trim
  • Sports seats

AMG Line equipment

AMG Line standard equipment
  • Partial leather seat trim
AMG Line optional equipment
  • Climate control
  • Electric driver`s seat
  • Electric passenger`s seat
  • Heated seats
  • Height adjustable drivers seat
  • Sports seats

Exclusive Edition equipment

Exclusive Edition standard equipment
  • Heated seats
  • Height adjustable drivers seat
  • Metallic Paint
Exclusive Edition optional equipment
  • Climate control
  • Electric driver`s seat
  • Electric passenger`s seat
  • Partial leather seat trim

Sport equipment

Sport standard equipment
  • Height adjustable drivers seat
  • Partial leather seat trim
Sport optional equipment
  • Climate control
  • Electric driver`s seat
  • Electric passenger`s seat
  • Heated seats