Audi Start-Stop New Fuel-Saving technology

Audis new start-stop system and a new efficiency program built into the onboard computer, helps Audi owners save fuel. The start-stop Audi system cuts engine power at idle when the clutch pedal is released and the gear lever is in its neutral position, and then restarts in just two-tenths of a second – more rapidly than any other comparable system – when the clutch is depressed. With the system’s help, economy is boosted and CO2 is reduced by approximately 5g/km, but if required it can be deactivated at the touch of a button.

The system is extremely quiet, convenient to operate and fast. It shuts down the engine when the car has come to a stop, for example in congestion or at traffic lights, and restarts when the clutch is activated. Typically, in normal driving conditions, it lowers fuel consumption by about 0.2 litres per 100 km, and reduces CO2 emissions by around 5g/km.

The on-board computer’s new efficiency program continuously analyses fuel consumption and gives the driver up-to-date tips for saving fuel, depending on the driving situation and driving style, via the central display. It signals to the driver whether the right gear is engaged or whether a shift would be more fuel-efficient. It also identifies the systems requiring extra energy – for example the air conditioning and seat heating – and indicates their share of fuel consumption. This information appears in the centre display.

The gearshift indicator signals to the driver when to change gear, for optimal fuel economy – a large, colour-coded display indicates whether the right gear is engaged, or whether shifting would be more efficient.

These two new innovations complement the energy recovery system, which saves fuel by feeding energy back into the vehicle’s electrical system during deceleration phases. It is already standard equipment on the A3 1.4 TFSI® manual, A4, A5 Coupé and A5 Cabriolet with two-litre engine and manual transmission, the A6 and the Audi Q5 and Q7.

Details of the models/engines that will be equipped with automatic Audi start/stop function as standardand the benefits over current versions appear below.

Audi ModelEngineTransNew CO2 (g/km)Combined fuel consumption (mpg)
A3 1.4 TFSI Manual 132 -7g/km +2.5mpg
A3 Sportback 1.4 TFSI Manual 134 -9g/km +2.4mpg
A4 Saloon 2.0 TDI® (120PS) Manual 129 -5g/km +2.3mpg
2.0 TDI (143PS) Manual 134 -5g/km +1.1mpg
2.0 TDI (170PS) Manual 134 -5g/km +1.1mpg
2.0 TDI q (170PS) Manual 149 -6g/km +1.7mpg
2.0 TFSI Manual 149 -5g/km +1.3mpg
2.0 TFSI q Manual 169 -3g/km +0.5mpg
A4 Avant 2.0 TDI (120PS) Manual 134 -7g/km +2.1mpg
2.0 TDI (143PS) Manual 139 -4g/km +1.1mpg
2.0 TDI (170PS) Manual 144 -5g/km +1.0mpg
2.0 TDI q (170PS) Manual 154 -6g/km +3.1mpg
2.0 TFSI Manual 154 -5g/km +1.3mpg
2.0 TFSI q Manual 169 -3g/km +1.5mpg
A5 Coupe 2.0 TDI Manual 134 -6g/km +1.1mpg
2.0 TDI q Manual 149 -7g/km +1.3mpg
2.0 TFSI (180PS) Manual 149 -5g/km +1.3mpg
2.0 TFSI (211PS) Manual 149 -6g/km +1.3mpg
2.0 TFSI q (211PS) Manual 169 -4g/km +0.5mpg
A5 Cabriolet

2.0 TFSI

Manual

156

-3g/km

+0.7mpg

Audi Start Stop: Save fuel without even realising it

If you have any questions about the Audi Start Stop technology or if you'd like more information please send an Audi Start-Stop enquiry