Audi S5 TDI revealed with mild-hybrid V6 diesel from S6 and SQ5

Audi’s mid-table S performance range continues to turn in a diesel direction, with the debut of the S5 TDI

First it was the SQ5, then the new S6 and S7, and now Audi’s fitted its new mild-hybrid V6 turbo diesel in its smallest application yet, the S5. The move heralds a return of the S5 after a brief hiatus due to WLTP emissions regulations, but this time with the brawny diesel in lieu of the previous 3-litre turbo petrol.

As in its other applications, the S5 TDI features a 48v mild-hybrid system that feeds both a small electric compressor and belt-driven starter motor/generator. These electrified powertrain components are then connected to a single-turbo 3-litre V6 diesel engine, together producing 342bhp, with a peak torque figure of 516lb ft available between 2500rpm and 3100rpm. Although power is down 10bhp, torque grows by a substantial 147lb ft (around the same as a 2.0 Mazda MX-5, no less) over the old petrol model.

Subscribe to evo magazine

Subscribe today to have every issue of evo delivered straight to you. You'll SAVE 39% on the shop price, and get evo for its original cover price for a whole year!

> Click here for more on the Audi S6 and S7 TDI

As a result, the new S5 TDI will reach 62mph in 4.8sec (the heavier Sportback manages 4.9sec), only 0.1sec slower than the previous petrol-powered S5. It will then run on to a 155mph limited top speed. These remarkably similar performance figures also come with an estimated 20 per cent reduction in fuel consumption.

Advertisement
Advertisement - Article continues below

The diesel engine is connected to an eight-speed torque converter automatic transmission and the requisite quattro all-wheel drive system. Audi’s torque-vectoring Sport Differential is on the options list, as are magnetorheological adaptive dampers and these are controlled via a new electronic chassis platform management system that coordinates all the active chassis components via one central electronic brain.    

The S5 is otherwise unchanged, Audi taking the decision not to hold the new TDI powertrain back until the A5’s upcoming mid-life refresh. We also expect this engine to be carried across to the new S4 and S4 Avant, when the A4 gets its own mid-life update this summer. UK prices and specifications have yet to be announced, but expect a slight jump over the current S5’s £49k price point.

Advertisement

Recommended

Visit/audi/s5/22943/2020-audi-s5-facelift-spied-before-reveal-alongside-rest-of-a5-range
Audi S5 hatchback

2020 Audi S5 facelift spied

29 Jul 2019
Advertisement

Most Popular

Visit/best-cars/15095/best-cars-to-buy-for-ps10000-evo-garage
Best cars

Best cars to buy for £10,000 – evo garage

The evo team picks their favourite used performance cars
1 Jul 2020
Visit/dodge/challenger/202845/2021-dodge-challenger-srt-super-stock-revealed
Dodge Challenger

2021 Dodge Challenger SRT Super Stock revealed

The ancient Dodge Challenger lives on in new 807bhp widebody form – makes a Shelby GT500 look like a pedal car
3 Jul 2020
Visit/mercedes/cla/202850/mercedes-amg-cla-45-s-shooting-brake-review
Mercedes CLA45 AMG hatchback

Mercedes-AMG CLA 45 S Shooting Brake review

Good looks and stonking performance, if you can stomach the price tag
4 Jul 2020
Visit/skoda/202145/full-2020-skoda-octavia-vrs-engine-range-detailed
Skoda Octavia vRS

Full 2020 Skoda Octavia vRS engine range detailed

Skoda’s engine range for the Octavia vRS topped by a 242bhp turbo petrol
3 Jul 2020