Skip advert
Advertisement

Mercedes E400 Cabriolet

We drive the new range-topping Mercedes E-Class Cabriolet, ahead of its UK arrival in October

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

Mercedes has focused on all the right areas for this facelift. The E-Class Cabriolet was already one of the most comfortable and relaxing convertibles out there, and now it has been improved in all the ways it had begun to lag behind the competition. The updated styling makes it look completely fresh, while the new technology and a few updated engines improve its safety, ease-of-use and performance. One of the best four-seater cabriolets on the market has just got a little better.

Advertisement - Article continues below

The Mercedes E-Class Cabriolet has been facelifted, borrowing some of the updates from the recently tweaked saloon and estate variants. There’s also a new E400 variant, which replaces the E500 at the top of the UK line-up, and Auto Express has been behind the wheel.

The changes are already familiar from the more traditional members of the E-Class family, such as the more cohesive headlight design, the new single-bar grille and the LED rear lights. Importantly, the pontoon-style rear wheelarches remain, whereas they had been smoothed out for the saloon and estate.

The interior tweaks are even more subtle, with the gear selector moving from the centre console to a steering wheel-mounted stalk, some new brushed metal finishes and updated dials.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

MG4 EV

2024 MG

MG4 EV

31,015 milesAutomaticElectric

Cash £13,395
View MG4 EV
3008

2023 Peugeot

3008

16,365 milesAutomaticPetrol1.2L

Cash £17,528
View 3008
Arona

2024 SEAT

Arona

7,278 milesAutomaticPetrol1.0L

Cash £16,681
View Arona
208

2023 Peugeot

208

17,560 milesManualPetrol1.2L

Cash £13,399
View 208

The Cabriolet’s top-down credentials are now better than ever thanks to the automatic AirCap, which drivers used to have to raise and lower manually. Now it’ll go up at 25mph, and almost completely stops buffeting even when you're driving at 60mph.

This new 328bhp engine is fantastic, too, although the big seller is still expected to be the E350 CDI V6 diesel. The E400 may be a tenth of a second slower from 0-62mph (with a time of 5.3 seconds) but it genuinely feels every bit as quick as the E500 it replaces. It delivers power just as consistently, too, despite the fact it’s turbocharged rather than naturally-aspirated.

Advertisement - Article continues below

That means good news for running costs, which have now improved from 31.0mpg in the E500 to 35.8mpg, with CO2 emissions down from 213g/km to 185g/km.

It’s also an engine that fits with the E-Class Cabriolet’s character as a relaxed cruiser. It’s quiet and smooth, which helps complement the smooth ride and top-notch refinement but – as ever with this car – driving thrills aren’t top of the list.

There have been big changes to the amount of technology on offer, with a new Distronic Plus system able to steer, accelerate and brake you through traffic jams and a 360-degree camera to help parking. As standard there’s a Pre-Safe Plus system that can detect a rear end collision and apply the brakes hard to stop you ricocheting in to the car in front.

The new E-Class Cabriolet is available in two trim levels: SE and AMG Sport. Going for an entry-level SE model will cost an extra £2,095 over the old car, while going for AMG Sport means paying £2,435 more than you would have done for the old Sport model.

Those premiums may seem like a lot but Mercedes claims you get extra standard kit in the facelifted car, which actually adds up to more than the premium you’re paying. With that in mind, if you’re after one of the most comfortable, refined and hi-tech cabriolets on the market, then the E-Class is better than ever.

Skip advert
Advertisement

New & used car deals

Volkswagen Golf

Volkswagen Golf

RRP £25,235Avg. savings £2,502 off RRP*Used from £11,800
Volkswagen Tiguan

Volkswagen Tiguan

RRP £38,030Avg. savings £3,128 off RRP*Used from £24,851
Hyundai Tucson

Hyundai Tucson

RRP £29,820Avg. savings £6,189 off RRP*Used from £12,695
Nissan Juke

Nissan Juke

RRP £19,785Avg. savings £4,644 off RRP*Used from £9,295
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New XPeng X9 seven-seater ‘starship’ will beam down to the UK this summer
XPeng X9 - front static

New XPeng X9 seven-seater ‘starship’ will beam down to the UK this summer

Chinese brand’s “starship of tomorrow” has rear-wheel steering, adaptive air-suspension and some of the fastest charging speeds of any EV around
News
30 Jan 2026
Dacia Bigster vs Citroen C5 Aircross: low prices and plenty of space, but which SUV does it best?
Dacia Bigster vs Citroen C5 Aircross - front tracking

Dacia Bigster vs Citroen C5 Aircross: low prices and plenty of space, but which SUV does it best?

Citroen’s latest C5 Aircross hybrid is aiming to woo budget family SUV buyers, but standing in its way is the wallet-friendly Dacia Bigster hybrid
Car group tests
31 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