The changes run across two-door Coupé, Convertible and four-door Gran Coupé versions of the car and form the first refresh since the initial BMW 4 Series launched in June 2013.
The 4 Series has since topped 400,000 sales globally, with the USA, Britain and Germany its top three markets. The Gran Coupé version takes half of these sales.
Subtle shift to styling
Styling updates are subtle, centring on mild tweaks to the grille, air ducts and the head and tail lamps – the twin headlamps are now full LED units with adaptive versions on the options list.
Customers can now choose from a wider range of 18 and 19-inch alloy wheels for their 4 Series, and two new exterior paint finishes are available – Snapper Rocks Blue and Sunset Orange.
Inside the changes are again mild, such as electroplated finishes on the air vent surrounds and control panels mounted in the doors. Chrome is added to the air conditioning and audio controls, while other finishes in the cabin include high gloss black, and leather on the new design steering wheel. More interior colour options are available too.
BMW follows the current industry trend to technology updates – M Sport trim cars include a new Professional navigation system which comprises six tile-style icons over two screens. The driver can customise these to their preference.
A digital cockpit display is on the options list, while other upgrades include cable-free smartphone charging and Wi-Fi connection, the latter providing a hotspot for up to 10 internet devices.
M Sport BMW 4 Series models also now come with the brand’s personal digital assistant service, BMW Connected, offering a range of useful services to the driver.
Same engines, chassis changes
There are no new drivetrains for the 4 Series – new engines were added to the model in 2016. Three petrol and three diesel units are available and power outputs of the petrol variants range from 184 though 252 to 326hp. Diesel buyers can choose 190, 258 or 313hp, the top diesel also fitted with all-wheel-drive.
There have been suspension changes, the Coupé and Gran Coupé now boasting a stiffer setup and steering modifications. According to BMW the results are reduced roll, more neutral responses when driving at the limit, greater straight-line stability and precise steering.
Order books open for the revamped BMW 4 Series on 19th January at prices starting from £32,525 – this is a £680 price increase over the previous version.