Skip advert
Advertisement

New Mercedes E 400 d Estate 2018 review

The big Mercedes E 400 d Estate offers great pace and efficiency, but it comes at a cost

Find your Mercedes E-Class
Compare deals from trusted partners on this car and previous models.
Or are you looking to sell your car?
Value my car
Fast, no-nonsense car selling
Value my car

If you have the budget and don’t want to jump on the SUV bandwagon, the Mercedes E 400 d estate could be the ultimate family car. It’s supremely comfortable, effortlessly quick and beautifully equipped. However, at over £56,000 it’s also a long way from being cheap; the more sensible and affordable E 220 d will be perfectly good enough for most people.

Advertisement - Article continues below

The latest Mercedes E-Class is a known quantity – it’s been around for a couple of years now and won plaudits for its impeccable build quality, luxurious cabin and best-in-class practicality.

Its vast array of engine options also means there’s something for everyone, from efficient plug-in hybrids to high-power AMG versions. This latest E 400 d holds the middle ground between the two, serving up decent fuel economy and punchy performance – on paper at least.

Best estate cars on the market

Under the bonnet sits a 3.0-litre six-cylinder turbodiesel that develops 336bhp and a whopping 700Nm of torque. It’s linked to Mercedes’ tried-and-tested nine-speed automatic gearbox and 4MATIC four-wheel-drive system as standard. The company says it will manage more than 46mpg and cover the 0-62mph sprint in a hot hatch-troubling 5.1 seconds.

The engine is near-silent at idle and is so well isolated from the cabin on the move it’s barely audible. The gearbox plays a big role in this, shifting its way up through the ratios at the earliest possible opportunity to keep everything as calm and serene as possible. 

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

E Class

2020 Mercedes

E Class

41,681 milesAutomaticDiesel2.0L

Cash £25,771
View E Class
E Class

2020 Mercedes

E Class

68,686 milesAutomaticPetrol3.0L

Cash £23,608
View E Class
E Class

2018 Mercedes

E Class

44,566 milesAutomaticPetrol2.0L

Cash £15,055
View E Class
E Class

2019 Mercedes

E Class

66,661 milesAutomaticDiesel2.0L

Cash £15,324
View E Class

Squeeze the throttle and the engine pulls hard from as low as 1,200rpm – the big estate will happily plod along at 30mph in sixth gear and accelerate all the way up to motorway speeds with minimal fuss. You don’t need to extend it beyond 3,000rpm because of the effortless delivery. Add in the supple ride quality and the E 400 d is simply one of the most relaxing and refined cars in which to cover long distances.

Advertisement - Article continues below

And because the engine is rarely strained it’s very easy to get close to the claimed fuel economy figure – after several hundred miles, which included a mix of city-centre driving and long motorway runs, we managed just shy of 44mpg. That’s almost on par with what you’d get from a lesser-powered, four-cylinder E 220 d. However, because of the E 400 d’s CO2 emissions of 161g/km, you’ll have to pay out £820 for the car’s first year of VED.

Despite its racy AMG Line trim (the only spec the E 400 d is available in) and punchy performance, this big, comfortable estate is a car far more suited to pottering around city streets and devouring long motorway miles than it is on a winding B-road. The standard 4MATIC all-wheel drive means you’re never short on traction or surefootedness at speed, but you’re always aware of the car’s mass during cornering, when the soft suspension allows the body to lurch over to the side. However, the car’s whole effortless and serene nature rarely encourages you to drive in such a way.

The E 400 d does come at a price, though – as an estate it’ll set you back £56,685 before you add any options. That’s a whopping £12,000 more than the already-excellent E 220 d 4MATIC.

As you’d expect at that price, the E 400 d is very well equipped; a full leather interior, panoramic sunroof and LED lights come as standard, as do automatic climate control, a 360-degree reversing camera, 12.3-inch digital cockpit, Burmester sound system, Apple CarPlay smartphone connectivity and 20-inch alloy wheels.

One optional extra that may be worth adding if you’re doing lots of motorway miles is Mercedes’ Driving Assistance Plus package. It’s not cheap, at £1,695, but the semi-autonomous driving function is one of the best around, helping the car to maintain a safe distance from the vehicle in front and keeping the car perfectly in lane even through high-speed motorway bends.

And because it’s an E-Class Estate, the E 400 d comes with best-in-class practicality as standard. The cavernous 640-litre boot is bigger than that of any other estate car in this class, while dropping the rear bench frees up a total of 1,820 litres of space.

Skip advert
Advertisement

New & used car deals

Mercedes E Class

Mercedes E Class

RRP £56,650Used from £19,200
BMW 5 Series

BMW 5 Series

RRP £53,090Avg. savings £11,807 off RRP*Used from £16,495
Mercedes C Class
Audi A6

Audi A6

RRP £52,010Avg. savings £6,069 off RRP*Used from £16,511
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

The petrol hot hatch isn't dead yet! VW Golf GTI and R to live on
Volkswagen Golf GTI - front corner tracking, low

The petrol hot hatch isn't dead yet! VW Golf GTI and R to live on

Volkswagen is developing the EA888 2.0-litre turbo engine for new emissions regs, meaning new hot hatches are in the works
News
27 Jan 2026
Meet Renault’s new SUV: a Dacia Duster but not as we know it…
Renault Duster - front

Meet Renault’s new SUV: a Dacia Duster but not as we know it…

Posher inside and out and with more headroom, welcome to the upside down world of the Indian Duster
News
26 Jan 2026
Updated MG4 EV gets £3k price hike, but is still cheaper than a VW ID.3
2026 MG4 EV

Updated MG4 EV gets £3k price hike, but is still cheaper than a VW ID.3

The ‘original’ MG4 EV has been tweaked with a new interior and prices
News
28 Jan 2026