Skip advert
Advertisement

Mercedes ML 350 CDI

Our verdict on the volume-selling V6 diesel version of the new Mercedes ML

Find your Mercedes M-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

The M-Class is still a practical, luxurious and comfortable SUV. The new model’s revised V6 diesel brings improved fuel economy and performance. While the Porsche Cayenne and BMW X5 are sportier to drive, the M-Class strikes a satisfying balance between comfort and dynamics. If you want even lower fuel bills, go for the four-cylinder ML 250.

Advertisement - Article continues below

It’s been a long time since Mercedes built a genuinely class-leading SUV – but that could be about to change with the arrival of the new M-Class. Its refinement and off-road ability impressed us in Europe, but how will the car fare on tougher UK roads?

Outside, it looks imposing, with an AMG styling pack that includes side skirts and 19-inch alloys as standard. It’s also longer and wider than before, so it matches rivals such as the BMW X5 and Porsche Cayenne for road presence.

In addition, the luxurious interior feels much smarter and better built than the outgoing model’s. A long list of standard equipment includes climate control, sat-nav and durable artificial leather upholstery.

The efficient new four-cylinder ML 250 grabbed the headlines at the launch, but the majority of UK cars will still be powered by this revised 3.0-litre V6 diesel engine.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

UX

2023 Lexus

UX

33,563 milesAutomaticPetrol2.0L

Cash £20,197
View UX
Qashqai

2022 Nissan

Qashqai

20,041 milesManualPetrol1.3L

Cash £14,197
View Qashqai
MG4 EV

2023 MG

MG4 EV

31,657 milesAutomaticElectric

Cash £11,897
View MG4 EV
ZS

2023 MG

ZS

35,766 milesManualPetrol1.5L

Cash £10,997
View ZS

Push the accelerator and it’s easy to see why: with 255bhp and a whopping 620Nm of torque on tap, the ML 350 provides truly effortless performance in any of its seven gears. It shrugs off its two-tonne bulk and sprints from 0-62mph in only 7.4 seconds, yet it also claims nearly 40mpg and emits 189g/km of CO2 – big improvements over the old car’s 32.5mpg and 230g/km.

As you’d expect from a Mercedes, the M-Class is also superbly quiet and refined. The ride is smooth, even on those sporty 19-inch alloys, while the engine makes only a muted roar under acceleration and fades into the background when cruising on the motorway. The M-Class is a great long-distance car.

Around corners, it’s also more agile than the old version, thanks to a more precise steering system. Although it doesn’t have the pin-sharp dynamics of a Cayenne or X5, it’s a more comfortable choice than either of those.

The M-Class doesn’t have seven seats like a Land Rover Discovery, but there’s room for five adults and plenty of luggage, too. You can fold the seats flat for a maximum 2,010 litres of storage room, which is pretty impressive.

Factor in the big range of off-road gadgets, such as the clever hill-descent system, and you have a great all-rounder.

Skip advert
Advertisement

New & used car deals

Audi A3

Audi A3

RRP £26,310Avg. savings £2,554 off RRP*Used from £10,980
Toyota Yaris Cross
Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £4,230 off RRP*Used from £12,100
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,347 off RRP*Used from £12,450
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Volkswagen ID. Tiguan revealed: first look at the ID.4's replacement
New Volkswagen ID. Tiguan - front static with Auto Express senior news reporter Alastair Crooks stood next to the car

New Volkswagen ID. Tiguan revealed: first look at the ID.4's replacement

Along with a revamped exterior, the ID. Tiguan brings a host of cabin upgrades too
News
9 Oct 2026
New Chery Approved Used scheme aims to boost confidence and attack second-hand car market
Used Chery - dealership

New Chery Approved Used scheme aims to boost confidence and attack second-hand car market

Eligible cars will get a two-year warranty, plus a handful of other benefits
News
7 Oct 2026
All-new BMW iX4 arrives with a 514-mile range and up to 604bhp
BMW iX4 50 - front

All-new BMW iX4 arrives with a 514-mile range and up to 604bhp

The latest member of BMW’s Neue Klasse is the first-ever iX4 ‘Sports Activity Coupe’, and there’s a 604bhp M60 version
News
7 Oct 2026