Fuel efficient Audi A3 & Audi S3 Saloon in detail

"Audi S3 Saloon"

Audi S3 Saloon


The all-new Audi A3 is already famed for offering the finish and feel of an executive class car, and as if to emphasise the point it now has the boot to complete the impression – the new A3 Saloon range becomes available for UK ordering this summer, closely followed by the 300PS, quattro all-wheel-driven S3 Saloon. The first ever booted A3 begins the Vorsprung durch Technik brand’s foray into the world’s largest market segment – the compact saloon class. It slickly integrates more seats-up load space than the A3 Sportback with similarly ample passenger accommodation and performance, the latter helped by ‘Audi ultra’ lightweight construction processes that trim weight to as little as 1,205kg.

Vital statistics include a length of 4,460 mm, a 150 mm increase on the A3 Sportback, and a width of 1,796 mm, which is 11 mmwider. At 1,416 mm in height the A3 Saloon is also nine mm lower. The wheelbase equals the A3 Sportback at 2,636 mm, providing plenty of passenger room between the axles. The boot’s carrying capacity amounts to 425 litres with the seats up – 45 litres more than the A3 Sportback. This capacity can be increased by folding down the split rear seat backs. The boot lid automatically swings upward when unlocked.

The strict dictate of ‘Audi ultra’ lightweight design is evident in the 1,205kg kerb weight, which applies to the A3 1.4 TFSI Saloon that initially kicks off the range. Audi uses many hot-formed steel parts in the passenger compartment for low weight and maximum strength, and the aluminium bonnet and front suspension sub-frame also help to lighten the load.

Three engines at launch
The low 100kg weight of the 1.4-litre TFSI 140PS engine itself also facilitates keen performance and nimble handling. It is one of three completely redesigned units to be available at launch, all of which bring together efficiency technologies including direct fuel injection, turbocharging, innovative thermal management and the start-stop system. The line-up of engines and transmissions will grow further, and will include two new entry level engines.

As well as low weight, this 140PS version of the 1.4 TFSI is also notable for its efficiency-focused Cylinder on Demand technology. At low engine load, the system deactivates two cylinders to minimise mechanical effort and cut fuel consumption. As a result, combined economy tops out at a TDI-rivalling 60.1mpg, while CO2 is pared back to 109 grams per km. Helped by its healthy 250Nm torque peak, the A3 1.4 TFSI Saloon takes just 8.4 seconds to accelerate from 0 to 62mph, and can reach 132mph where conditions allow.

The 1.8-litre TFSI which is next in line produces 180PS and 250 Nm of torque. It employs state-of-the-art technologies, including dual injection into the combustion chambers and the induction manifold, to deliver a broad spread of strong performance, but its headline figures are a 7.3-second 0-62mph sprint time and a 144mph top speed. Combined fuel economy is 49.6mpg, equivalent to 135 grams of CO2 per km.

The diesel contingent is initially represented by the latest 2.0-litre TDI producing 150PS and 320 Nm of torque. It powers the A3 Saloon from 0 to 62mph in 8.4 seconds, takes it to a top speed of 132mph and is capable of returning up to 67.3mpg. This equates to CO2 output of 108 grams per km.

S tronic with free-wheeling function
Depending on the engine chosen, the standard transmission is either a manual six-speed or the S tronic dual-clutch gearbox. S tronic shifts without any noticeable break in propulsive power, and is controlled by either the selector lever or paddles on the steering wheel. The ‘D’ setting is programmed for maximum fuel efficiency, and the S mode with its higher shift points for more energetic driving. Where the Audi drive select adaptive vehicle dynamics system is fitted, S tronic offers a free-wheeling function in its efficiency mode which further reduces fuel consumption.

The Audi S3 Saloon

Soon after the launch of the new Saloon range, its flagship – the S3 Saloon – will make its debut. Its 2.0-litre TFSI engine produces 300PS and 380 Nm (280.27 lb ft) of torque, and combines highly advanced efficiency technologies – dual fuel injection, exhaust manifold integrated in the cylinder head, the Audi valvelift system and a rotary valve module for thermal management.

Paired with S tronic transmission and aided by the fast-acting quattro all-wheel-drive system based on a multi-plate clutch system, the S3 Saloon will accelerate from 0 to 62mph in 4.9 seconds; with the standard manual transmission it will need 5.3 seconds. In both cases top speed is electronically limited to 155mph, and in both cases fuel economy can notably exceed 40mpg according to the official combined cycle test – 40.9mpg with S tronic transmission and 40.4mpg where the manual gearbox is fitted. This pegs CO2 output at 159 and 162g/km respectively.

The S3 Saloon can scythe through corners even more cleanly if the optional Audi magnetic ride damper control with its magnetorheological fluid-filled dampers is specified. Audi magnetic ride is controllable via the standard Audi drive select vehicle dynamics system, which offers Comfort, Auto, Dynamic, Efficiency and Individual modes, and also governs the operating characteristics of the throttle, the steering, the optional S tronic transmission and the optional adaptive cruise control. In Efficiency mode these features, and also the climate control system, are set to function with minimal input from the alternator in order to conserve fuel.

Visually, the flagship in the new Saloon range is distinguished by S-specific treatments for the bumpers, single frame grille, air intakes, exterior mirror housings, side sills and rear spoiler. Four chrome-trimmed oval tailpipes embedded in the diffuser also attest to the 300PS at the driver’s disposal. In the interior, the S3 Saloon is set apart by S sports seats, instruments with grey dials and trim strips in black 3D look.

The new S3 Saloon and its A3 Saloon counterparts are set to become available to order in the UK in the summer, and full UK pricing and specification for all variants will be confirmed nearer to that point. The first A3 Saloon models will reach UK customers in the autumn of 2013, and the first examples of the S3 Saloon in early 2014.