Just one engine is available from launch: a turbocharged 2.0-litre four-cylinder diesel equipped with a belt-integrated starter-generator for 12V mild-hybrid functionality.
This technology, already available on several other Audi models, allows for engine-off coasting and can activate the engine start-stop function at speeds below 13.7mph.
The engine is also equipped with twin-dosing selective catalytic reduction (SCR) for reduced NOx emissions.
The upgrades enable the 40 TDI to record 43.6-44.4mpg on the WLTP cycle, depending on spec, compared with 37.2- 39.8mpg before. This means CO2 emissions have also come down, from between 200g/km and 185g/km to 139-143g/km.
Performance figures are slightly improved, too, with the Q5 capable of accelerating from 0-62mph in 7.6sec – roughly half a second quicker – and hitting a top speed of 138mph, up from 135mph.
Two additional variants of the 2.0-litre diesel with different power outputs will be added to the range later, alongside a diesel V6 and a pair of 2.0-litre four-cylinder petrol engines. The TFSIe petrol-electric plug-in hybrid will also return in two states of tune.
Chief among the styling changes to the Q5 is a reshaped front grille that sits shallower and appears wider than that of the current model and is flanked by taller air intakes with trapezoidal inserts.
The front end also receives a reshaped bumper and redesigned LED light clusters that feature a new daytime-running light signature.