Skip advert
Advertisement

Mercedes BlueEfficiency

BlueEfficiency line-up packed with eco kit

A-Z of green cars

Rivals will be left feeling blue when they see Mercedes’ green innovations.

The German firm’s answer to increasing demands for eco-friendly vehicles has been the creation of its BlueEfficiency brand.

Unlike some manufacturers, the badge isn’t attached to a stand-alone model, but is instead used to indicate vehicles that feature any number of energy-saving additions. Technology found in the BlueEfficiency line-up includes stop-start, weight reduction, low-rolling-resistance tyres, reworked engines, aerodynamic improvements and chassis modifications.

Advertisement - Article continues below

Some cars incorporate lots of this kit; others have only a few of the features.

Greenest goodies are reserved for the smallest Mercedes. A-Class models – including the A160 and A180 – are the only machines to get stop-start, although bosses claim larger cars in the range will benefit soon.

The C-Class saloon and estate both feature BlueEFFICIENCY tweaks, with one of the highlights being an efficient 1.6-litre turbocharged petrol engine that emits 149g/km of CO2 and returns 44.8mpg. The oil-burning C220 CDI delivers an even more impressive set of statistics, with a CO2 output of 127g/km and combined fuel economy of 58.9mpg.

Further up the range, you’ll find the blue badge features on all versions of the new E-Class saloon and coupé, with the exception of the V8-engined E500 and hot E63 AMG.

At the heart of the newcomer’s eco-friendly credentials are Mercedes’ direct-injection CGI petrol and CDI diesel powerplants, which are cleaner and more efficient than the units they replace.

Even the M-Class and GL-Class off-roaders have been given the green treatment, although it’s only variants fitted with the V6 oil-burner that get the BlueEFFICIENCY tag.

However, it’s worth bearing in mind that even the cleanest models – the ML300 CDI and ML350 CDI – pump out 236g/km of CO2, which results in an annual tax bill of £405.

So although the eco features are largely reserved for smaller cars in the range, the maker’s drive towards a greener future is looking impressive.

Skip advert
Advertisement

New & used car deals

Skoda Kodiaq

Skoda Kodiaq

RRP £39,025Avg. savings £3,224 off RRP*Used from £13,495
Toyota Yaris Cross

Toyota Yaris Cross

RRP £27,145Avg. savings £2,383 off RRP*Used from £15,509
Renault Clio

Renault Clio

RRP £16,160Avg. savings £4,422 off RRP*Used from £7,495
Kia Sportage

Kia Sportage

RRP £28,065Avg. savings £3,066 off RRP*Used from £13,499
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Make motorists pay-per-mile if you must, but at least use the cash to fix the roads!
Road repairs - opinion

Make motorists pay-per-mile if you must, but at least use the cash to fix the roads!

Dean Gibson wants more money from car taxation to go specifically on road maintenance
Opinion
25 Dec 2025
The Multi-Purpose Vehicle must return to save car buyers from their SUVs
Opinion - MPVs, header image

The Multi-Purpose Vehicle must return to save car buyers from their SUVs

Steve Walker thinks that MPVs would bring some much-needed choice back to a family car market fixated by SUVs
Opinion
26 Dec 2025
Cars that will die in 2026: get 'em before they're gone
Auto Express team members standing with their favourite outgoing cars

Cars that will die in 2026: get 'em before they're gone

In 2026 we'll wave goodbye to some big names from the automotive world. We drive the best of these death row models one last time...
Features
27 Dec 2025