Skip advert
Advertisement

Mercedes E350 CDI Cabriolet

Latest soft-top hits British roads – and we give our verdict on top-spec diesel

Find your next car here
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

With slick looks, great comfort and plenty of kit, the new top-spec E-Class is another great Mercedes cabriolet. While rivals are more entertaining to drive, they can’t compete with the E350 for top-down refinement and luxury. The V6 diesel engine complements the car’s relaxed character perfectly, providing plenty of performance when it’s needed, without hitting drivers hard in the pocket.

Advertisement - Article continues below

The temperature is rising in the battle to be top of the convertible class – and with its blend of style, efficiency and comfort, Mercedes’ E350 CDI looks a real contender.

We got behind the wheel to see if it has what it takes to beat our favourite drop-top, the BMW 3-Series Convertible. And first impressions are good. The latest E-Class’s elegant design works well in the Cabriolet bodystyle, and our flagship Sport model’s subtle bodykit and rear diffuser help make the Mercedes one of the most handsome drop-tops on the road. As with the exterior, the cabin is understated but stylish, and solidly built. Plus, equipment is generous. Limited rear legroom is the only disappointment.

On the road, the 3.0-litre V6 diesel is the perfect companion. It delivers 228bhp and 540Nm of torque, and provides relaxed cruising as well as effortless overtaking ability. The E350 CDI is quick off the line, too, covering 0-62mph in 6.9 seconds. At low speeds, a diesel thrum enters the cabin, but as you pick up the pace you won’t hear the engine at all.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

2 Series Gran Tourer

2020 BMW

2 Series Gran Tourer

59,121 milesAutomaticPetrol1.5L

Cash £12,880
View 2 Series Gran Tourer
HS

2022 MG

HS

42,916 milesManualPetrol1.5L

Cash £12,880
View HS
Golf

2020 Volkswagen

Golf

61,778 milesManualDiesel1.6L

Cash £12,490
View Golf
GLA

2022 Mercedes

GLA

32,179 milesAutomaticPetrol1.3L

Cash £24,490
View GLA

The seven-speed 7G-Tronic auto gearbox is excellent, with shifts so smooth they’re barely noticeable. The only issue we have with it is an occasional, disconcerting pause before the car moves off from a standstill.

Advertisement - Article continues below

Party trick for the Cabriolet is the Aircap, which sees a deflector pop up above the windscreen as the glass panel between the rear seats rises higher. This reduces wind turbulence, and keeps the cabin refined at speed. Add clever climate control and the Airscarf neck heating system, and top-down motoring is practical even on cold days. The fabric roof folds neatly under the rear deck in
20 seconds. But when in place, it minimises wind noise, thanks to its special ‘acoustic’ construction.

In corners, the E350 is composed and the steering is accurate, if a little short on feel.

Buyers looking for driving thrills would be better off with the BMW.Those who want a relaxed cruiser, however, should go for the Merc –it’s a class leader in this respect.

Although you will detect a small amount of body flex over coarse or bumpy surfaces, it’s still smooth and comfortable. Lesser SE-spec models – which do without the stiff suspension of our performance-tuned model – will be even more refined.

The E350 CDI Sport weighs in at £40,780, and BlueEFFICIENCY tweaks bring 40.4mpg combined economy and CO2 emissions of 189g/km – figures that complete an excellent all-round package.

Rival: 330d M Sport Conv.
BMW is a much more involving proposition, and offers behind-the-wheel fun that the Mercedes can’t match. It’s also greener – although it’s not as comfortable as the E-Class, and costs more

Skip advert
Advertisement

New & used car deals

Dacia Spring

Dacia Spring

RRP £14,995Avg. savings £2,785 off RRP*Used from £10,000
Volkswagen Polo

Volkswagen Polo

RRP £14,495Avg. savings £1,925 off RRP*Used from £8,888
Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,535 off RRP*Used from £18,790
Nissan Juke

Nissan Juke

RRP £21,290Avg. savings £4,614 off RRP*Used from £9,000
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Land Rover Defender updates suggest 'if it ain't broke...' approach
2027 Land Rover (camouflaged) - front

New Land Rover Defender updates suggest 'if it ain't broke...' approach

Land Rover isn’t fixing what isn’t broken with its hugely popular Defender
News
11 May 2026
Volkswagen T-Roc vs Toyota C-HR: two popular small SUVs, one winner
Volkswagen T-Roc and Toyota C-HR - front tracking

Volkswagen T-Roc vs Toyota C-HR: two popular small SUVs, one winner

The second-generation VW T-Roc has landed to find the Toyota C-HR waiting to challenge it. Which SUV comes out on top?
Car group tests
9 May 2026
Plug-in hybrids outpace EVs on battery degradation due to varied use patterns
Electric car charging

Plug-in hybrids outpace EVs on battery degradation due to varied use patterns

While average battery state of health is roughly the same for EVs and PHEVs, varied use cases create more variance for hybrids
News
11 May 2026