BMW 3 Series Saloon and Touring models are receiving new engines, including the three-cylinder 318i, the 326hp 340i, the 99g/km 320dED and the 335d with 630Nm of torque.
There are also minor changes to front and rear styling, with new interior materials.
The new BMW 3 Series Saloon and Touring ranges feature a total of four petrol engines and seven diesel engines. All the three-, four- and six-cylinder petrol engines, and the four-cylinder diesel units in the BMW 316d, BMW 318d and BMW 320d, are now sourced from the newly developed, modular BMW EfficientDynamics engine family and are equipped with the latest BMW TwinPower Turbo technology.
The new BMW 318i, which replaces the previous BMW 316i, is the first BMW of this size to be fitted with the new three-cylinder petrol engine. This new engine delivers maximum power of 136hp from a displacement of just 1.5-litres and has a peak torque of 220 Nm. For short periods this can be increased to 230 Nm by using the overboost function that is activated by kickdown. With the six-speed manual gearbox, the BMW 318i accelerates from 0-62mph in just 8.9 seconds on the way to a top speed of 130mph. Emissions are 122g/km CO2 (with eight-speed Steptronic transmission), a 12 per cent improvement over the previous BMW 316i. The Saloon returns up to 54.3mpg and the Touring 51.4mpg.
Also making its debut in the new BMW 3 Series is a new 2.0-litre four-cylinder in-line engine available in two different states of tune. Fitted in the new BMW 320i Saloon and Touring models, it develops a maximum output of 184hp between and a maximum torque of 290 Nm with six-speed manual gearbox and rear-wheel drive. This is combined with CO2 emissions of up to 134g/km and fuel consumption as low as 48.7mpg.
In the new BMW 330i, the successor to the previous BMW 328i, it generates 252hp and 350 Nm torque. This gives the new BMW 330i Saloon with eight- speed Steptronic transmission a 0–62mph sprint time of 5.8 seconds (Touring: 5.9 seconds) and a top speed of 155mph in both Saloon and Touring models. Nevertheless, the CO2 emissions of the BMW 330i Saloon has fallen compared with the previous model by 8 per cent to 136g/km, and the combined fuel consumption now stands at 48.7 mpg.
The new BMW 3 Series also sees the world debut of the all-new six-cylinder engine from the latest modular BMW EfficientDynamics engine family. This new BMW 340i, available in Saloon and Touring variants, effectively replaces the previous 335i. It’s a light but rigid all-aluminium unit with BMW TwinPower Turbo technology, and with a displacement of three-litres, it develops a maximum power of 326hp, a 20hp improvement over the previous model. Peak torque is 450 Nm. The new BMW 340i Saloon with the standard-fit eight-speed Steptronic transmission goes from 0-62mph in just 5.1 seconds, with a governed top speed of 155mph. And although it offers significantly more power and superior torque up by 50 Nm compared to before, CO2 emissions are 7 per cent down on the old 335i Saloon at 159g/km (Touring 164g/km). The combined fuel consumption is 41.5mpg.
Big efficiency improvements have also been achieved on the optimised four-cylinder diesel units, which belong to the same new modular family as the petrol engines. The latest improvements are down to BMW TwinPower Turbo technology, with VNT turbocharging and high-pressure common rail direct injection. For example, the 116hp BMW 316d Saloon returns up to 68.9mpg, with CO2 emissions of only 109g/km.
The output of the new BMW 320d has risen beyond that of its predecessor model (up from 184hp to 190hp) and CO2 emissions have been reduced by 6 per cent. With its torque of 400 Nm, the new BMW 320d Saloon with eight-speed Steptronic transmission returns a 0–62 mph time of 7.2 seconds, two tenths of a second less than the previous BMW 320d Saloon. The new BMW 320d achieves a top speed of 143mph, but generates CO2 emissions of just 111g/km.
The new BMW 3 Series Saloon and new BMW 3 Series Touring can be fitted with a six-speed manual transmission or eight-speed Steptronic unit (standard on the BMW 330d, BMW 335d and BMW 340i Touring).
As an alternative to the BMW rear-wheel-drive set-up, the BMW 320i, 320d and 330d variants of the new BMW 3 Series model range can be ordered with BMW xDrive intelligent all-wheel drive. Thanks to its torque output, the BMW 335d is fitted with this technology as standard.
The new BMW 320d EfficientDynamics Plus Saloon and Touring models offer up to 74.3mpg fuel consumption and CO2 emissions as low as 99km. These models are powered by a modified 2.0-litre turbodiesel engine developing maximum power of 163hp and maximum torque of 400 Nm. They feature an optimised transmission configuration, modified gear shift indicator (on models with a six-speed manual transmission), low-rolling resistance tyres, a partially masked kidney grille and lowered ride height. The 320d EfficientDynamics Plus models also offer a high level of standard specification including Business Navigation, leather upholstery and heated seats.
The new BMW 330e will offer a combined fuel consumption of 134.5mpg and CO2 emissions of 49g/km when it joins the range in 2016. Its hybrid technology combines a 184hp 2.0-litre petrol engine with an 80 kW electric motor. The combined output of 252hp and combined maximum torque of 420 Nm (provisional figures) give the BMW 330e a 0-62mph acceleration time of just 6.3 seconds and a top speed of 140mph. This model is also capable of travelling up to approximately 22 miles in all-electric mode.