Mercedes-Benz B-Class (2012–2018)
The new B-Class was officially revealed. Substantially more agile and efficient, but as comfortable and spacious as ever – the new B-Class from Mercedes-Benz is a winner on all fronts. The vehicle's lower height and more upright seat position provide for a first impression that hints at the compact sports tourer's dynamic credentials.
4,393mm long x 1,786mm wide (2,010 inc mirrors) x 1,558mm high.
With a new four-cylinder petrol engine featuring direct injection and turbocharging, a new diesel engine, a new dual clutch transmission, a new manual transmission and new assistance systems, the front-wheel-drive car also rings in a new technological era for compact cars from Mercedes-Benz.
The 2012 B-Class is a typical Mercedes sports tourer, offering plenty of space combined with impressive dynamic performance as a hatchback saloon. The character lines of the exterior design indicate both of these attributes: the front and rear feature width-emphasizing design, with a wide, prominent grille and headlamps extending along the sides at the front while the rear end features a wide rear window, two-piece tail lights and a large tailgate with low loading sill.
Another Mercedes-Benz premiere is the twin wet clutch 7G-DCT dual clutch transmission in the B-Class. This transmission is extremely compact, extremely variable with regard to adaptation of the engine speed thanks to seven gears, features an electric oil pump for start/stop capability, shifts gear without any interruptions in tractive power and combines the comfort of an automatic with the efficiency of a manual transmission.
The new 6-speed manual transmission designed along similarly compact lines as a three-shaft transmission is a close relative of the DCT. Extremely easy gear shifting, low shift forces, low internal friction and a low weight are among its most important characteristics.
The modular "Energy Space" concept means that the new B-Class is already designed to accommodate versions with an alternative drive: appropriate interfaces in the body shell enable the main floor panel to be modified and a step to be produced for the versions with alternative drive. An underfloor compartment covering part of the area under the rear bench seat offers space for alternative energy accumulators.
Mercedes-Benz B160s and some B180s are fitted with OM 607 1,461cc belt cam Renault diesel engines. B180 BlueEfficiency and B200CDIs have OM 651 1,796cc chain cam Mercedes engines. B220CDIs have OM 651 2,143cc chain cam Mercedes engines.
Four wheel drive B 220 4MATIC announced, available January 2014. Has 1,991cc 4 cylinder turbo petrol engine offering 184PS and 300Nm from a low 1,200-4,000rpm coupled to 7G-DCT dual clutch transmissiom and automatic four wheel drive. Top speed 140mph, 0-60 7.2, 42.2mpg combined, 156g/km CO2. Standard wheels 18" with 225/40 R18 tyres. Price £28,135, but 'Command' satnav not standard and extras can soon bump that up to £38,240.
Mercedes-Benz launches revised B-Class
Externally, the 2015 Mercedes-Benz B-Class is distinguished by a redesigned front bumper with more pronounced air intakes either side of a wider grille and headlights with integrated daytime running lights.
The rear bumper has also been changed and now resides below new LED tail lights. Inside, the satnav map and vehicle functions are displayed on a bigger, tablet style 7" screen controlled by a knob on the console.
Entry level B-Class SE models come with 16" alloy wheels, comfort suspension and, reversing camera, Artico leather substitute trim,three louvre radiator grille, LED DRLs, LED tail lights, 7" display, Active Park Assist, air-condtioning, Collission prevention Assist Plus, iPhone connectivity, Bluetooth 7 airbags and leather covered multi-function steering wheel.
B-Class Sports get 17" alloys, twin tailpipes ambient lighting aznd rain sensing wipers.
B-Class AMG Line go to 18" alloys, bi-xenon headlights, Artico/Dinamica upholstery, AMG body kits and lowered Comfort suspension.
Petrol engines are a turbocharged chain can 1.6 with stop/start and 3rd generation direct injection in the B180 and B200.
The B180CDI ECO and B180CDI share the same Renault based 1,461cc belt cam engine, while the B200CDI continues with 1,796cc OM651 chain cam Mercedes diesel engine and B220CDI with Mercedes 2,143cc OM651 chain cam diesel.
All 2015 B-Class models benefit from new BlueEFFICIENCY technology making them up to 26% more economical than 2014 versions.
From Spring 2015 a completely electric B-Class using Tesla technology to extend its maximum range to 149 miles, at prices from around £27,500 (after the Government grant).
The B-Class Electric Drive operates in three-modes: Economy Plus for constant steady-speed journeys, which reduces the output of the motor to 85HP and top speed to 68mph. Economy mode reduces output to 135HP and Sport offers the motor’s full 182HP. The two Economy modes can be overridden and full power and torque accessed by the driver using the kickdown function.
The optional ‘Collision Prevent Assist Plus’ system uses radar-assisted recuperative braking to recharge the battery. Fully recharging the B-Electric via a 16-amp home wall socket takes around nine hours if the battery is empty. Using a 400-volt three-phase electricity supply the car can be recharged in three hours.