Skip advert
Advertisement

Mercedes CLS 350 CDI

It’s the car that created this class, but have rivals caught up with the CLS?

If BMW wants to gain the upper hand in the increasingly busy four-door coupe market, this is the car it will have to beat. The Mercedes CLS is now in its second evolution, and builds on the strengths of its predecessor, which proved a surprise hit for the brand first time around. 

Advertisement - Article continues below

Based on the platform and running gear of the E-Class saloon, the CLS is a more complex package than its predecessor. If you loved the original for its clean, flowing lines, there’s a chance that the current version’s bulges and sharp edges may leave you cold. When parked alongside the 6 Series Gran Coupe during our test, certain elements did look a little fussy.

With the exception of a few minor styling tweaks the cabin is carried over from the E-Class saloon, which is no bad thing. The seats are comfortable – and ours came with the £1,310 option of dynamic bolsters which hold you in when cornering – while the column-mounted gearshift is easy to live with and frees up space for the intuitive COMAND infotainment control system.

In an effort to distance it from the E-Class, Mercedes offers the CLS only with seating for two in the back. Although this means each rear occupant gets a more sculpted chair, the oversized armrest that runs the full length of the car confines passengers’ legs strictly to the area behind the front seats. This, combined with the low roofline and chunky door furniture, means that six-footers will find the back of the car rather cramped.

Advertisement - Article continues below
Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

1 Series

2014 BMW

1 Series

65,000 milesAutomaticPetrol3.0L

Cash £13,450
View 1 Series
e-208

2022 Peugeot

e-208

21,742 milesAutomaticElectric

Cash £14,049
View e-208
A-Class Saloon

2023 Mercedes

A-Class Saloon

25,300 milesAutomaticPetrol1.3L

Cash £20,649
View A-Class Saloon
XCeed

2022 Kia

XCeed

20,881 milesManualPetrol1.5L

Cash £15,099
View XCeed

Another area where the CLS disappoints is quality. Overall the cabin feels solid and upmarket, but some elements of the dash trim – notably the rotary controls for the heating – seem disappointingly cheap. On the plus side, the CLS boasts the biggest boot of our test trio with a volume of 520 litres.

Unlike BMW, Mercedes doesn’t reserve special engine options solely for the CLS range. The 265bhp 3.0-litre CDI diesel and standard seven-speed automatic box will be familiar to owners of other Mercedes, and the car proves a fair match for the more powerful BMW, recording a 0-60mph time that’s only half-a-second slower. It also feels quicker and more eager to accelerate than the Gran Coupe, particularly from low speeds.

Away from the track, our CLS didn’t seem quite as sharp as its rivals. It’s composed and capable through a series of turns, but the steering feels over-assisted, particularly at low speeds. And despite our car’s £1,500 optional air-suspension, the ride wasn’t quite as supple as the smooth BMW’s. 

However, the Mercedes looks something of a bargain against the competition here. Even after you’ve added creature comforts such as air-suspension, dynamic massage seats and upgraded leather trim, you’ll still be paying thousands less than you would for the BMW or Porsche.

So while the CLS isn’t perfect, with such a significant price advantage it’s easy to overlook the car’s few failings.

Details

Chart position: 1Why? The CLS is now in its second generation, and remains the benchmark car in its class. This could be its stiffest test to date.

Skip advert
Advertisement

New & used car deals

Skoda Kodiaq

Skoda Kodiaq

RRP £39,045Avg. savings £3,528 off RRP*Used from £8,970
MG MG4

MG MG4

RRP £27,005Avg. savings £6,250 off RRP*Used from £8,672
Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £3,565 off RRP*
Kia Sportage

Kia Sportage

RRP £28,085Avg. savings £3,144 off RRP*Used from £12,990
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Ford Explorer Van revealed for those seeking more style than a humble Transit
New Ford Explorer Van - front angled

New Ford Explorer Van revealed for those seeking more style than a humble Transit

Explorer Van has arrived as an official conversion from Ford’s team in Dagenham
News
9 Apr 2026
New Mercedes CLA review: style over space in this classy estate
Auto Express news reporter Ellis Hyde standing next to the Mercedes CLA Shooting Brake

New Mercedes CLA review: style over space in this classy estate

The Mercedes CLA Shooting Brake is a stylish alternative to an SUV, but a bigger boot wouldn't go amiss
Road tests
8 Apr 2026
Updated Volkswagen ID.4 and ID.5 get power and range boosts
Updated VW ID.5 GTX

Updated Volkswagen ID.4 and ID.5 get power and range boosts

Volkswagen is still looking to keep the ID.4 and ID.5 fresh, despite the imminent arrival of the ID. Tiguan
News
9 Apr 2026