Skip advert
Advertisement

Mercedes E250 CDI

Can this super efficient diesel clean up in the executive class?

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

Efficiency doesn’t have to come at the expense of a decent driving experience. Mercedes has made a good fist of making a more economical version of its luxurious E-Class. The firm has got a lot of the new package spot-on. Our only criticism is the powerplant, which suffers in comparison with more refined units from rivals such as BMW. And with the next 5-Series set to bring more advances, this three-pointed star could be left in the shade. For now, though, it’s a winner.

Advertisement - Article continues below

This is the greenest Mercedes E-Class ever – and not only could it help the planet, it could also prevent owners from going into the red!
The E250 CDI will be the least polluting and most efficient car in the range until an even more eco-friendly E220 CDI goes on sale in September.
However, buyers should still be happy with this 2.1-litre, four-cylinder oil-burner. It puts out 154g/km of CO2 and promises 47.1mpg economy – that’s an improvement of 20g/km and 4.4mpg over the previous-generation E220 CDI.
What this means for owners is road tax of £150 a year – not bad for a luxury model. And make no mistake, even though Mercedes is trying hard to offer environmental and financial benefits, it hasn’t compromised on the comfort and quality that lie at the heart of the E-Class.
The E250 CDI still provides a cosseting experience on the road, soaking up bumps and patchy surfaces. A stronger chassis and new dampers that adapt to the driving conditions make this a highly comfortable cruiser – especially because it’s so quiet inside. Part of the reason for this is that Mercedes has used coconut husks as sound insulation: it sounds nutty, but it works!
All that deadening is also necessary because the diesel unit isn’t as quiet and refined as some of those offered by rival manufacturers. It’s still a little on the agricultural side when you press on, and even if you’re accelerating only gently there’s a faint clattering sound.
However, this is pretty much the only criticism you can level against this car – which says a great deal about the package. The engine’s performance is more than adequate, and with peak torque of 500Nm on tap from 1,600rpm, there’s plenty of in-gear pull. What’s more, bearing in mind that it tips
the scales at 1,735kg, this E-Class is also surprisingly agile and engaging to drive.
 

Skip advert
Advertisement

New & used car deals

Mercedes E Class

Mercedes E Class

RRP £56,940Used from £47,200
BMW 5 Series

BMW 5 Series

RRP £53,110Avg. savings £12,207 off RRP*Used from £30,975
Mercedes C Class
Audi A6

Audi A6

RRP £52,110Avg. savings £5,895 off RRP*Used from £41,999
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

New Renault 5 updates unlock more range, but the price stays the same
2026 Renault 5 update - front overhead

New Renault 5 updates unlock more range, but the price stays the same

Clever tweaks have unlocked greater efficiency, plus buyers have more scope for customisation
News
22 Sep 2026
Slow-selling Ford Transit Nugget camper axed in UK
Ford Transit Custom Nugget - front

Slow-selling Ford Transit Nugget camper axed in UK

The Ford Transit Nugget has been discontinued in the UK, but marches on in left-hand-drive markets
News
22 Sep 2026
Best new cars coming soon: all the big new car launches due in 2026, 2027 and beyond
Best new cars coming soon 30/06/26

Best new cars coming soon: all the big new car launches due in 2026, 2027 and beyond

Here are the most important new cars from Alfa Romeo, Audi, BMW, Dacia, Ferrari, Ford, Skoda and more
Best cars & vans
21 Sep 2026