Mercedes-Benz B-Class (2011-2018) review | Sensible and practical alternative to a family SUV

What is the Mercedes-Benz B-Class?

The second-generation Mercedes-Benz B-Class arrived in 2011 as a more polished and conventional successor to the original B-Class. Mercedes-Benz gave it sharper styling, improved interior quality and a more comfortable driving experience. Space for passengers and luggage was also increased.

Compared with its predecessor, the new B-Class felt more like a traditional family hatchback to drive, but it retained the higher seating position and practicality that appealed to families and older buyers alike.

Unfortunately for Mercedes-Benz, the B-Class arrived just as buyers were beginning to shift towards SUVs and crossovers in large numbers. As a result, it never became fashionable, but that helps make it an appealing used buy for anyone who wants a spacious, comfortable and well-built family car.

How practical is it?

Undoubtedly, it is the overall sense of airiness and space that makes the B-Class such a good family car. Although there is loads of knee room, elbow room and headroom wherever you sit, it is particularly spacious in the back. With some additional help from the wide-opening rear doors, getting toddlers in and out of child seats is easier than with many mid-sized hatchbacks.

Whether you use it to carry pushchairs, sports kit or the family dog, the square-shaped 486-litre boot is big enough for most people’s needs. There’s plenty of room even with the rear seats in place, while folding the rear seat-backs increases capacity to a useful 1,545 litres.

What's it like to drive?

The B-Class prioritises comfort and ease of use over driving enjoyment. Light steering and good visibility make it easy to manoeuvre around town, while the high seating position gives the driver a clear view of the road ahead.

However, some versions can feel unsettled on rough roads, with sharper bumps sending noticeable vibrations through the cabin. Certain engines also become quite vocal when worked hard, especially the lower-powered diesel models.

Still, the B-Class was never intended to be a sporty family car. Instead, it majors on refinement, practicality and relaxed motorway cruising, all of which suit its character rather well.

Technology, equipment & infotainment

Thankfully, there are only a few trim levels to get your head around. SE models ride on 16-inch alloy wheels and comfort suspension, and feature a 7.0-inch infotainment screen, steering wheel-mounted audio controls, USB charging ports, smartphone integration and air conditioning.

Sport trim adds larger 17-inch alloy wheels, automatic headlights and wipers, climate control air-con and a larger infotainment display. Range-topping AMG Line trim models get sportier styling, lowered sports suspension and leather upholstery.

If you can find a car with sliding rear seats, so much the better. As well as moving backwards and forwards, the seat-backs can be positioned more upright to maximise boot space. Fold everything flat and the B-Class becomes an impressively versatile way to carry bulky loads.

Mercedes-Benz B-Class running costs

The good news for used buyers is that most B-Class models have already gone through the steepest part of their depreciation curve. Higher-spec AMG Line versions may look more desirable, but they also bring firmer suspension, larger wheels and higher running costs.

Routine servicing is fairly straightforward, and buyers can choose between Mercedes-Benz main dealers and independent specialists. The latter are usually a lot cheaper, while the B-Class itself is not especially complicated by modern standards.

Fuel economy is respectable across the range. Petrol models can return around 50mpg in careful driving, while diesels are capable of more than 60mpg on longer journeys. Insurance costs are generally reasonable for a premium-badged family car, although the more powerful models naturally cost more to cover.

Mercedes-Benz B-Class reliability

Many B-Class models were sold with Mercedes-Benz’s dual-clutch transmission. While some owners have reported hesitant or inconsistent shifting, problems are often linked to missed gearbox oil changes, so a full and well-documented service history is especially important.

Some owners have also reported issues with starter motors, air-conditioning pulleys and leaking injector seals. Diesel models used mainly for short journeys can suffer from blocked diesel particulate filters (DPFs). A long motorway drive will sometimes clear the issue before more expensive repairs are required.

Overall, the B-Class has a decent reputation for reliability by the standards of a premium family car, particularly when properly maintained. Mercedes-Benz originally backed it with a three-year unlimited-mileage warranty, which reflected its confidence in the car’s long-term durability.