Mercedes B Class MPV, starting at 33100 £

Q: How much power does the Mercedes B Class deliver on the road?

Up to 238 HP of power – depending on the configuration.

Q: What is the fuel consumption of the Mercedes B Class according to the manufacturer?

Based on WLTP testing, consumption is around 2.50 L.

Q: What is the Mercedes B Class’s maximum WLTP range?

Depending on equipment, the WLTP range reaches up to 83 km.

Q: How many kWh does the Mercedes B Class’s battery hold?

The Mercedes B Class comes with a 12.90 kWh battery.

Q: How big is the Mercedes B Class overall?

Overall, the Mercedes B Class is 4419 mm long, 1796 mm wide and 1562 mm high.

5 (4 Reviews)

The Mercedes B Class MPV impresses with 238 HP 83 km and an attractive starting price of 33100 £ . Here are all the details at a glance.

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from about £33,100

Mercedes B Class

Price : 33100 - 52500 £
Body Type : MPV
Engine Type : Plugin Hybrid, Petrol MHEV, Diesel
Transmission : Automatic
Transmission Detail : Dual-Clutch Automatic
Drive Type : Front-Wheel Drive, All-Wheel Drive
Power HP : 116 - 238 HP
Consumption L/100km : 2.5 - 6.9 L
Electric Range : 83 km
Battery Capacity : 12.90 kWh
Seats : 5
Acceleration 0-100km/h : 6.5 - 10 s
Model Year : 2024 - 2025
Max Speed : 200 - 250 km/h
Torque : 200 - 450 Nm
Number of Cylinders : 4
Doors : 5
CO2 Efficiency Class : B, D, E, F
Power kW : 85 - 175 kW
co2 : 56 - 156 g/km
Engine capacity : 1332 - 1991 cm3
Curb weight : 1405 - 1745 kg
Fuel tank capacity : 35 - 51 L
Trunk capacity : 405 - 455 L
Length : 4419 mm
Width : 1796 mm
Height : 1562 mm
Brand : Mercedes-Benz
Max trunk capacity : 1440 - 1540 L
Payload : 505 - 550 kg

First impression: Tall and tidy, not a van in disguise

The B‑Class presents itself as a compact MPV with Mercedes styling cues rather than a full-blown hatchback, thanks to its upright roofline and tidy proportions. At 4,419 mm long it looks purposeful in town and avoids the awkward mini‑van silhouette that used to define this segment. The face is unmistakably Mercedes — grille and lights neatly integrated — giving the B‑Class a premium look without shouting for attention. Overall, it reads as practical and grown‑up rather than sporty or flashy.

Cabin character: Simple luxury with sensible ergonomics

Materials and switchgear aim for a quiet premium feel, with soft surfaces where it counts and user‑friendly controls laid out with little fuss. The driving position is upright and comfortable, helping visibility in traffic and easing access for older passengers or those with kids in tow. Technology blends into the dash rather than dominating it, and five seats are standard with Mercedes levels of finishing higher than many mainstream rivals. The overall vibe is understated refinement, not gadget overload.

Practicality at work: Family friendly without drama

Rear passenger space is genuinely usable: headroom is generous, knees get reasonable clearance, and shoulder room is competitive for the class, so school runs and supermarket hauls are handled without complaint. The boot starts at 405–455 litres and can be extended to roughly 1,440–1,540 litres with seats down, which means pushchairs and holiday cases fit with little contortion. Small touches such as flat load lip and sensible cubbies make daily life easier, even if there are no headline‑grabbing storage innovations. In short, the B‑Class prioritises usable space over clever gimmicks.

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On the move: Composed and city‑savvy

Ride comfort is the B‑Class’s strong suit — suspension soaks up urban imperfections while body control remains composed on faster roads, making it an easy companion for longer commutes. Front‑wheel drive is standard with optional AWD on higher petrol variants, and weights range from around 1,405 to 1,745 kg, which keeps motion composed but not athletic. Performance choices span brisk to brisk‑enough, with the plug‑in variant offering 218 hp and 450 Nm for a 0–100 km/h sprint near 7.6 seconds, while other petrol and diesel options trade outright pace for economy. Steering is light and predictable, so the B‑Class feels more like a relaxed cruiser than a corner‑carving hatchback.

Energy matters: Plug‑in perks and efficient MHEVs

Mercedes offers a plug‑in hybrid with a claimed electric range that stands out: a 12.9 kWh battery and an official electric range of about 83 km, paired with combined consumption figures that can be as low as 2.5 L/100 km on paper. Petrol mild‑hybrids typically cite around 5.9 L/100 km while diesels sit near 5.1 L/100 km, which translates to sensible running costs for motorway miles or long commutes. Real‑world consumption will depend on driving style and charging discipline, but the lineup gives buyers the option to prioritise electric urban use, low running costs, or simple convenience. For regular short trips the PHEV unlocks real electric commuting; for long distance drivers the MHEV and diesel options keep fuel bills modest.

Gadgets and guardians: Smart systems that earn their keep

The B‑Class contains the usual Mercedes tech: a tidy digital cockpit, responsive infotainment with voice control, and driver aids designed for everyday convenience rather than headline autonomy. Features such as adaptive cruise, lane assist and parking aids are well integrated and practical on daily drives, while the infotainment is clear to navigate even when the touchscreen is busy. Safety assistance feels mature and unobtrusive, working to reduce stress in traffic rather than demanding constant attention. Overall the technology package complements the car’s practical purpose instead of stealing the show.

Who should buy it: Practical buyers with premium tastes

The B‑Class suits buyers who want a compact, family‑friendly car with a premium badge and sensible packaging rather than a sporty compact hatch. The model range spans modest diesels and mild‑hybrid petrols up to a punchy 238 hp petrol and the 218 hp PHEV, so there’s an option for those prioritising efficiency, performance or electric‑first commuting. Customers valuing comfort, interior quality and usable space — especially urban families and professionals who occasionally need more room — will find the B‑Class an easy, well‑rounded choice. It’s not the most exciting steering experience, but it is a convincing blend of Mercedes refinement and everyday sense.

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Costs and Consumption
Price 33100 - 52500 £
Consumption L/100km 2.5 - 6.9 L
Consumption kWh/100km -
Electric Range 83 km
Battery Capacity 12.90 kWh
co2 56 - 156 g/km
Fuel tank capacity 35 - 51 L

Dimensions and Body
Body Type MPV
Seats 5
Doors 5
Curb weight 1405 - 1745 kg
Trunk capacity 405 - 455 L
Length 4419 mm
Width 1796 mm
Height 1562 mm
Max trunk capacity 1440 - 1540 L
Payload 505 - 550 kg

Engine and Performance
Engine Type Plugin Hybrid, Petrol MHEV, Diesel
Transmission Automatic
Transmission Detail Dual-Clutch Automatic
Drive Type Front-Wheel Drive, All-Wheel Drive
Power HP 116 - 238 HP
Acceleration 0-100km/h 6.5 - 10 s
Max Speed 200 - 250 km/h
Torque 200 - 450 Nm
Number of Cylinders 4
Power kW 85 - 175 kW
Engine capacity 1332 - 1991 cm3