In-depth reviews

Audi A3 review – engine, gearbox and technical highlights

The A3 range features unstressed petrol, diesel and plug-in powertrains. Transmissions are of the usual manual or dual-clutch variety

Evo rating

Fundamental to the Audi A3, and its platform mates the Golf, Leon and Octavia, are the shared powertrains that are found right across the Volkswagen Group’s extensive range of MQB models. This means that while the engines might all be the same (and trust us, they are) due to a high investment in fundamental engineering, they’re good. 

The A3's engine range consists 1.5-litre turbocharged four-cylinder ‘evo’ engine that’s been in use since 2017 and a 1-litre turbo triple petrol, plus a diesel in two outputs. The new-generation ‘evo’ petrol engine is excellent when considered objectively – superbly refined, responsive, torquey at low rpm, but not so much as to strain at the upper reaches of the rev range. The three-cylinder has little place in a premium-branded car like the A3, it makes what is already a car at odds with the four-rings on the steering wheel feel like a hire-car from Catalunya airport. There are also two 2-litre diesels available with 114bhp and 148bhp, if that’s your thing.

There are two transmission options – a six-speed manual and seven-speed S-tronic dual-clutch. The S-tronic is nothing unusual, unobtrusive shifts, responsive paddles and a nice interplay between engine and transmission. It does hesitate at low speeds like all-dual clutch boxes, but isn’t nearly as sloppy as some of Volkswagen’s high-rated boxes that prioritise clutch life over response.

The manual is a different matter though, as despite sharing almost everything with the gearboxes in the rival Leon and Golf, it feels less precise than in either of those cars. Whether this was something to do with the specific car we were driving, or perhaps Audi’s decision to divert some of the development resource to the more popular S-tronic option is unknown, but the result is the A3 actually feels the least resolved of its immediate brethren. There’s also a 204bhp plug-in hybrid TFSIe model available, dropping the e-tron nomenclature that’s now exclusively reserved for all-electric models in Audi’s range. Quattro models are also curiously absent save for the S3 and the incoming RS3 models.

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