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Mercedes-Benz EQB 300 4MATIC Review

The Mercedes-Benz EQB 300 4MATIC is an all-electric seven-seater, which means it’s a very rare thing, and it’s good to drive – which is something else that’s not always guaranteed with a seven-seater SUV.

  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes-Benz EQB 300 4MATIC
  • Mercedes EQB charge curve
Green Car Guide Rating: 9/10

Key stats

  • Model/Engine size:   Mercedes-Benz EQB 300 4MATIC AMG Line Premium
  • Fuel:   Electric
  • Electric driving range (WLTP): 250-257 miles
  • Maximum rapid charging rate: 100 kW


  • All-electric seven-seater
  • SUV body style and all-wheel drive
  • Good to drive
  • 250-257 mile range


Mercedes was slow to bring all-electric cars to market, and we haven’t been bowled over by the brand’s plug-in hybrid offerings. However there appears to have been a big change at Mercedes, with dramatic progress in the area of electric vehicles. And now we have the all-electric EQB – at the time of writing, the only all-electric seven-seater car you can buy in the UK.

Mercedes-Benz EQB 300 4MATICMercedes-Benz EQB 300 4MATIC

Design & Engineering

If you mention a Mercedes B-Class to most people it seems difficult to find much love for it. The same can be said about the electric B-Class – yes, one did exist, although you’ll struggle to see many on the roads.

So Mercedes has brought us a new ‘B-Class’ – the EQB. Based on the petrol or diesel GLB, no longer is this a bloated A-Class, it’s an SUV – in other words the type of car that everyone wants – and it’s even got seven seats. Yes, Mercedes has somehow squeezed seven seats into one of its smaller cars.

Mercedes says that the two seats in the third row can be used by people up to five feet four inches tall, and child seats can also be fitted. The seats in the second row slide forwards and backwards to aid entry/exit to the third row of seats.

With the third row of seats in use, there’s very little boot space, but if you fold these down, there’s 495-litres of boot capacity, or 1,710 litres with the second row of seats also folded. So this is good packaging for a car that’s only 4,687mm in length: it’s compact yet spacious.

The interior is fairly standard Mercedes, with a wide screen incorporating the driver’s instrument display and the central touchscreen, and the five silver air vents across the width of the dashboard are one of the main design features, which are bathed in ambient blue lighting.

The EQB exterior has SUV styling, and overall the design looks ‘practical’ rather than featuring the more sporty curves of most other Mercedes models.

The EQB has a 66.5 kWh battery and two electric motors producing 228 hp and 370 Nm of torque giving all-wheel drive (ie. ‘4MATIC’).

Mercedes-Benz EQB 300 4MATICMercedes-Benz EQB 300 4MATIC

Mercedes-Benz EQB 300 4MATIC Driving Experience

Seven-seaters are generally not known for their enjoyable driving dynamics, and when you add a high-riding SUV body style into the equation, things generally get worse. However the Mercedes EQB changes all that.

When you drive off in the EQB you’ll find that it’s responsive, which should be the case for all EVs, but isn’t always. The ride quality is comfortable, and even though this is a seven-seat SUV, with a raised ride height compared to a conventional car, thanks to the battery being in the floor, body roll through the corners is well controlled. You’ve also got good grip from the all-wheel drive system, and even the steering feels quite direct.

The result of all this is that the driving experience is impressive, and a particularly good test is driving through a corner with a poor road surface, when the EQB feels composed and isn’t thrown off balance in all sorts of directions, which can be an issue with some seven-seat SUVs. The EQB’s relatively compact size no doubt helps with the way it goes round corners. However, as with most battery-electric cars, the EQB is heavier than the petrol equivalent, with a kerb weight of 2,105 kg.

The EQB is also quiet and refined at motorway speeds, with little road noise, and although there isn’t huge performance (0-62 mph in 7.7 seconds), progress is always effortless thanks to the instantly-available torque.

The EQB has the normal Mercedes gear selector on a stalk on the right-hand side of the steering column. You can also adjust the level of regenerative braking using the steering wheel-mounted paddles.

Although the driving experience of the EQB is very good overall, the brakes were the main item that we had an issue with; when braking the responses felt inconsistent and as a result they weren’t confidence-inspiring.

There’s a drive mode switch between the two front seats, giving the options of Sport, Comfort, Eco or Individual drive modes. Having physical controls in the cabin for drive modes and regenerative braking is much better than these controls being hidden away in the touchscreen.

While we’re on the subject, the central touchscreen is wide but not that tall, and visually appears to be part of the same screen that also incorporates the driver’s instrument display.

There are physical shortcut buttons between the front seats for key controls such as sat nav, media and phone, and there are separate physical controls for heating and ventilation, which is a much better solution than having to always reach to the touchscreen to adjust such vehicle settings.

An interesting, and useful, feature is that as well as the EQB displaying a figure for its estimated electric driving range, it also gives you a second figure for a potential longer range if you were to drive very carefully.

There a number of controls on the steering wheel including two small black plastic pads that you can swipe to, for example, scroll between different information on the driver’s instrument display. Our feedback from drivers suggests that all this may be getting slightly over-complex for many people.

MBUX Interior Assistant with gesture control comes as standard, controlled via voice, touch or optional gesture input. And the sat nav system can take into account charging times when calculating the route that will get the driver to their destination fastest.

Mercedes-Benz EQB 300 4MATICMercedes-Benz EQB 300 4MATIC

Mercedes-Benz EQB 300 4MATIC Electric Range and Charging

The Mercedes-Benz EQB 300 4MATIC has an official WLTP electric driving range of 250-257 miles. Our real-world range was averaging 220-250 miles.

The EQB can be rapid charged at up to 100 kW when a 10-80% charge should take 32 minutes. A home wall box should give a 10-100% charge in 5 hours 45 minutes. It can also be charged at up to 11 kW at a workplace.

A three-year subscription to the Mercedes me Charge public charging service is also available as standard, which includes a Green Charging guarantee. This ensures that an equivalent amount of electricity from renewable sources is fed into the grid to compensate for charging the EQB.

Electric cars do not charge at their maximum charge rate for an entire charging session – their charge rate typically starts off high with a battery with a low state of charge, then the charge rate decreases as the battery charge increases. See the charge curve for the Mercedes-Benz EQB from Fastned:

Mercedes EQB charge curve

How to charge an electric car

Mercedes-Benz EQB 300 4MATICMercedes-Benz EQB 300 4MATIC

Price And Model Range

The Mercedes-Benz EQB 300 4MATIC AMG Line Premium costs £55,145. Our test car (unusually) had just one option, denim blue metallic paint (£895), taking the total price as tested to £56,040.

The EQB 300 4MATIC AMG Line is available from £52,145. You can choose between the Mercedes-Benz EQB 300 and EQB 350.

The EQB 300 AMG Line comes as standard with 18” AMG 5-spoke alloy wheels; AMG bodystyling; Mirror package; Parking package with reversing camera; privacy glass; heated front sports seats with Seat Comfort package; THERMOTRONIC automatic climate control; MBUX multimedia system with widescreen cockpit (two 10-inch displays with touchpad); Mercedes-Benz sound system and smartphone integration including Apple CarPlay and Android Auto.

The AMG Line Premium trim line (an additional £3,000 – as tested) brings an electrically operated panoramic glass sunroof; 19” AMG 5-twin spoke alloy wheels; KEYLESS-GO Comfort package; the Advanced Sound System with 10 speakers and wireless charging.

Mercedes-Benz EQB 300 4MATICMercedes-Benz EQB 300 4MATIC


The Mercedes-Benz EQB 300 4MATIC is currently the only all-electric seven-seater car on sale in the UK (there are some van-based seven-seaters, and the Tesla Model X isn’t currently on sale – and when it is, it’s very expensive). Although the EQB can seat seven, it has a relatively compact body.

The EQB is also an SUV, which, with a higher ride height, is the body style that many buyers want. It’s even an SUV with all-wheel drive, giving it better grip than if it had just two-wheel drive. It also has comfortable ride quality. Because the EQB is electric, it’s responsive and refined. Our only issue with the driving experience was the slightly inconsistent brake feel.

So overall the EQB is an excellent all-round car, and of course it has the Mercedes badge, which is highly desirable for many people, but all this is reflected by the price, which, starting at £52,145, isn’t the most affordable for many people. The Mercedes-Benz EQB 300 4MATIC is awarded a Green Car Guide rating of 9 out of 10.

Car facts and figures Mercedes-Benz EQB 300 4MATIC Review

  • Test electric driving range: 220-250 miles
  • Consumption (WLTP): TBC
  • CO2 emissions (WLTP): 0 g/km
  • Vehicle tax rate (VED):   £0
  • Benefit in Kind (BIK) company car tax liability (2022/23): 2%
  • Price:   £55,145
  • Insurance group:   TBC
  • Power:   228 hp
  • Torque:   370 Nm
  • Max speed:   99 mph
  • 0-62 mph:   7.7 seconds
  • Weight:   2,105 kg
  • Towing weight: TBC
Paul Clarke

Review by:
Paul Clarke, GreenCarGuide Editor