BMW 520d 69mpg

BMW to launch 69mpg 5 Series

BMW 520d 69mpg

The new BMW 520d can do 65.7mpg… choose an auto and it jumps up to 68.9mpg

BMW is preparing to launch two ultra-efficient new four-cylinder diesel versions of its 5 Series executive saloon – with the most economical now offering 69mpg potential.

The BMW 518d and 520d are to get a new version of the firm’s four-cylinder turbodiesel engine. This new generation motor has already been introduced in the X3 and will eventually roll out across the whole four-cylinder BMW range.

The new 520d shows its efficiency potential: when paired with the optional eight-speed automatic transmission, the 520d is now capable of 68.9mpg on the combined cycle, with corresponding CO2 emissions of 109g/km.

This is the first time a 5 Series diesel has dipped beneath the 110g/km CO2 barrier – and also means the large exec matches the CO2 emissions of the most economical 3 Series.

The 190hp motor is punchy despite its efficiency, too: it boasts 295lb ft of pulling power and, in prime automatic guise, reaches 62mph from rest in 7.7 seconds.

The 150hp 518d returns similar economy and also hits the 110g/km CO2 mark, but although it’s cheaper, it’s less impressive against the clock: 0-62mph takes 9.5 seconds.

The BMW 518d will cost from £30,265 and the 520d will start at £31,965: BMW is planning to roll out the new four-cylinder diesel models for summer delivery.

Question is, how economical will the 3 Series be with this super-efficient new diesel engine? Could it take the 320d below the 100g/km CO2 mark, giving it potential fuel economy of over 74mpg? Watch this space…

More on the BMW model year changes

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