Skip advert
Advertisement

Mercedes ML 270 CDI

What's the most sought-after item on a Mercedes M-Class? The wood-and-leather interior? The latest diesel engine? Or maybe it's just the badge on the bonnet that says you've made it.

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

What's the most sought-after item on a Mercedes M-Class? The wood-and-leather interior? The latest diesel engine? Or maybe it's just the badge on the bonnet that says you've made it.

Oddly enough, none of these is on the 'wanted' list of our long-term ML270 CDI. Instead, four tiny pieces of metal regularly attract attention in the car parks. They're the dust covers on the valves of the chunky off-roader's tyres. And, for some reason - much like the craze for Volkswagen badges, thanks to the Beastie Boys rock band in the Eighties - the Merc's metal protectors are the target of the thieves.

Advertisement - Article continues below

So far, around a dozen caps have been swiped while the M-Class has been parked. But it's not only the big Merc that's suffered from this. We've had more caps nicked from a new E-Class - while it was being tested during a week long stay with the magazine's road test team.
When I called the local Mercedes dealer for replacements, this wasn't a surprise. "It happens all the time," the parts manager said. "People like the metal covers, and steal them to replace their own plastic ones." Ruddy cheek! Is there nothing they won't take these days?

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

TRAFIC

2022 RENAULT

TRAFIC

24,030 milesManualDiesel2.0L

Cash £18,695
View TRAFIC
Captur

2021 Renault

Captur

15,000 milesManualPetrol1.0L

Cash £13,995
View Captur
Yaris

2024 Toyota

Yaris

16,013 milesAutomaticPetrol1.5L

Cash £15,300
View Yaris
i4

2024 BMW

i4

16,031 milesAutomaticElectric

Cash £32,300
View i4

I've been driving the Merc for a few months now and, with its class-leading boot space, it has proved a popular choice for a host of chores... it's been subjected to rent-a-van duties, transporting student belongings to university, while several trips across to the south of France and beyond by other staffers have been completed without a hitch.

It's on these longer hauls where the M-Class's turbodiesel engine shows its strength. Despite having only 163bhp on tap, there's plenty of torque to shift such a hefty vehicle. And the 2.7-litre unit is a first class motorway cruiser.

Around town, though, the five-speed automatic gearbox is constantly hunting for the correct gear, making smooth progress tricky and over-use of the brake pedal a tiring reality. It's much better to switch to the Touchshift manual function and do the cog-shifting yourself.

Advertisement - Article continues below

The engine, however, has a taste for oil which, on one occasion, caused an emergency call to the local dealer. A red light on the dash had warned that we should stop and seek immediate assistance, but it proved nothing more serious than an oil top-up. "It's a common problem to watch out for on these engines," commented the breakdown man in attendance. But it was a surprise nonetheless, after only a few thousand miles. A steering lock which refused to free itself on the key led to another, later callout. On both occasions, however, the response from the local dealer was impressively swift.

Meanwhile, fuel economy so far has been around 25mpg across a mix of driving conditions - that's good for the class. A petrol version returns less than 20mpg. Inside, the M-Class is generally comfortable, although the seats could do with better support, particularly as the 4x4 wallows its way round corners. And, in a vehicle which costs the better part of £30,000, you would expect reach as well as rake adjustment for the steering wheel.

But there's plenty of other kit in the cabin, with climate control, a CD player and curtain airbags all standard (and our test car also features an excellent satellite-navigation system from the options list). We expect the first service warning sign to light up any mile soon (it's due at around 15,000, we reckon), so watch out for further reports including service and running costs.

Skip advert
Advertisement

New & used car deals

Renault Clio

Renault Clio

RRP £16,175Avg. savings £2,383 off RRP*Used from £6,595
Audi A3

Audi A3

RRP £26,310Avg. savings £2,713 off RRP*Used from £9,995
Hyundai Tucson

Hyundai Tucson

RRP £29,840Avg. savings £5,649 off RRP*Used from £13,300
Volkswagen Polo

Volkswagen Polo

RRP £15,270Avg. savings £1,925 off RRP*Used from £6,777
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Jaecoo 5 SHS-S finally means hybrid power for this compact SUV
Jaecoo 5 SHS-S - front tracking

New Jaecoo 5 SHS-S finally means hybrid power for this compact SUV

Chery’s latest hybrid powertrain brings the Jaecoo 5 SUV bang up to date
News
15 Apr 2026
Long-term test: Nissan Qashqai e-Power Tekna+
Nissan Qashqai e-Power Tekna+ - Mk1 with new car

Long-term test: Nissan Qashqai e-Power Tekna+

Second report: What a difference 20 years make in the life of popular SUV
Long-term tests
15 Apr 2026
New Volkswagen ID.3 Neo: EV hatch gets massive update, Golf-a-like look and lots of buttons!
Phil McNamara with the Volkswagen ID.3 Neo

New Volkswagen ID.3 Neo: EV hatch gets massive update, Golf-a-like look and lots of buttons!

The new Volkswagen ID.3 Neo EV banishes the quirkiness of its predecessor with a less cartoonish look and smarter tech
News
15 Apr 2026