An Audi A1 1.2 TFSI manual that starts without a chain rattle and has a healthy clutch is the lesser risk; avoid the seven-speed S tronic, whose mechatronics unit fails from 27,000 miles.
5 known faults, 5 rated high severity in our database; owners report 46.7 mpg, 78% of the official figure. Everything below is built from that data and the archived owner history, not from a press car.
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Check an Audi A1 advert (free) →A 1.2 TFSI with the manual gearbox is the lesser risk on the 8X A1 (2010 to 2019), because it isn't named in the turbo, DPF or S tronic faults that hit the other versions. Its weak spot is the timing chain, which can stretch and let the tensioner fail, most often between 40,000 and 60,000 miles, so it's one to hear starting from cold. Manual cars from 2011 to 2016 also carry a clutch fault you'll need to check for.
Don't buy an A1 with the seven-speed S tronic automatic. Its mechatronics unit fails when the seal and housing distort and leak fluid, and owners have reported breakdowns at 27,000, 37,500 and 40,000 miles. The 1.4 TFSI carries the most known faults of the petrols: a timing chain that stretches on 2010 to 2014 cars and turbo failures on 2013 to 2019 cars, some of which have wrecked the engine.
The 1.6 TDI isn't a safer bet. Its DPF struggles with short journeys on 2011 to 2018 EA189 engines, which can push diesel into the oil and raise the level past the maximum mark, and its turbo sits in the same 2013 to 2019 failure fault as the 1.4 TFSI. It also needs a cambelt every 60,000 miles or 60 months, so don't take one past either mark without the invoice.
The A1 Sportback sold from 2018 has only a handful of owner reports, but several describe the 1.5 TSI (badged 35 TFSI) hesitating or losing throttle when pulling away from junctions, with one owner left waiting on a software fix. One 2019 1.0 TSI S tronic was also slow to respond at roundabouts. That's not enough to rule it out, so drive one through junctions and a hill start before you commit.
The 1.2 TFSI petrol is the lesser risk, since none of the A1's known engine faults name it, but its timing chain still needs a careful listen. The chain on these engines stretches and the tensioner fails, most commonly between 40,000 and 60,000 miles, and there's no fixed replacement interval, so a harsh metallic noise lasting 2 to 3 seconds from a cold start means the chain needs attention. One owner's 1.2 TFSI already had a noisy chain at 2 years old.
The 1.4 TFSI (EA111) has two serious known faults. Its timing chain can stretch and the tensioner fail between 40,000 and 80,000 miles on 2010 to 2014 cars, skipping the timing and damaging the engine, and one owner's 2011 1.4 TSI Twincharger failed completely at 65,000 miles after they'd paid £3,000 for a repair to cure a rattle. Turbos on 2013 to 2019 cars have failed too. Oil use is worth watching as well: one 2013 1.4 TFSI needed four oil top-ups by 6,052 miles.
Treat the 1.6 TDI with care. Turbo failures on 2013 to 2019 engines have come as early as 13,000 miles, and one 2015 car's turbo sent parts into the engine and destroyed it. The EA189 1.6 and 2.0 TDI (2011 to 2018) suffer DPF failures from short runs, and the extra diesel used to clear the filter can dilute the oil: one 2014 1.6 TDI's sump held 8.5 litres against a 4.3 litre capacity when it blew up. The cambelt's due every 60,000 miles or 60 months.
The manual is the gearbox to have, as long as its clutch is healthy. On 2011 to 2016 cars the clutch, dual-mass flywheel and clutch slave cylinder can fail early, between 15,000 and 50,000 miles, and three more cars had failures at 9 and 12 months old. The seven-speed S tronic (DQ200) is the bigger risk: its mechatronics unit fails between 27,000 and 40,000 miles, and since a recall swapped its synthetic oil for mineral, it's had to have fresh oil at 40,000 mile intervals.
Insist on a cold start and stand by the bonnet: a metallic rattle for 2 to 3 seconds on a 1.2 or 1.4 petrol means a stretched timing chain. On an S tronic, a knock at low idle when it's cold, hesitant or missed shifts, or a car that won't pull away all point to mechatronics trouble. In a manual, make sure the clutch bites cleanly, the pedal isn't spongy or sticking, and there's no burning smell after a hill start.
On a 1.6 TDI, pull the dipstick, because oil above the maximum mark means diesel's getting into the sump while the DPF clears itself, and a DPF warning or limp mode backs that up. A whine or whistle from the engine bay, flat performance, or blue or white exhaust smoke points to a failing turbo on a 2013 to 2019 1.4 TFSI or 1.6 TDI. Diesels that have only done short trips are the ones to worry about.
Wind both front windows up and down a few times, since several owners have had them stick, from seal coatings that turn tacky and a weak regulator mechanism. Open and shut the tailgate listening for water sloshing inside it, which has turned up on a 2012 and a 2016 car. Look at the rear dampers for weeping, as one 2014 car had a leaking one at its first MOT at 23,000 miles, and look for pitted rear brake discs.
Ask for invoices for S tronic oil changes every 40,000 miles and proof its oil recall was done, a cambelt change on a 1.6 TDI past 60,000 miles or 60 months, and any clutch or flywheel work on a manual. On a 2010 to 2014 1.4 TFSI, a receipt for a new timing chain and tensioner counts in its favour. Run the air con on a cold day if you can, as one 2013 car took up to 20 minutes to clear its windows.
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The S tronic automatic is the 8X's biggest problem, with mechatronics units failing between 27,000 and 40,000 miles once the seal and housing lose their shape. One 2013 Sportback 1.4 TFSI broke down at 27,000 miles despite only ever being serviced by Audi, another failed at 37,500 miles with a full Audi history, and a 40,000 mile Twincharger's S tronic failed with a knock at cold idle. S tronic cars can also cut out briefly mid-junction, as software delays the signal that the brakes are off.
Manual cars from 2011 to 2016 have their own weakness, with clutches, dual-mass flywheels and slave cylinders failing between 15,000 and 50,000 miles. One 2014 petrol A1's clutch went at 15,000 miles, and on another car the manual gearbox broke teeth off a gear at 24,500 miles. A 2016 1.4 TFSI S Line manual wouldn't shift out of first and gave off a strong burning smell at 19,500 miles.
Turbos on 1.4 TFSI and 1.6 TDI engines from 2013 have failed at low mileage, and one lightly used 2015 1.6 TDI's turbo destroyed its engine at 13,000 miles; Audi supplied a new engine and turbo but the owner was asked to pay £2,000 to fit them. Another 2013 1.6 TDI lost its turbo and then its ECU within 18 months of being bought used. After the EA189 emissions fix, owners reported slower response, worse economy and, on a 2.0 TDI, an emissions warning light.
It's a five-star Euro NCAP car, and its other faults are smaller. Owners have reported front windows sticking, water collecting inside the tailgate, a power steering pump, a sticking caliper and two broken springs on one 2013 car, and a failed MMI system on a 2011 car. A 2014 1.4 TSI Sportback's owner was billed £431.12 for a turbo charge pressure actuator. The 1.4 TFSI has no room for a full-size spare, since its battery takes up the spare wheel well.
Real-world economy on this generation: Audi A1 45.5 mpg, Audi A1 Sportback 48.4 mpg, Audi A1 46.8 mpg.
Sellers rarely admit these faults outright
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Check an advert now (free) →Owners report 46.7 mpg across the Audi A1 engines with data, about 78% of the official figure, from 1,019 submissions.
Audi A1 Real MPG by engine →It's got the solid quality and easy-to-live-with feel that Audis are known for, and there's a roomy cabin for a small car. The Sportback sold from 2018 is the same story, with standout looks, the same sort of space and a wide choice of engines, and it comes across as a premium small car.
Early cars with the firmer suspension could be ordered with the softer setting instead, which takes the edge off the ride without changing the wheels and tyres. It handles neatly, too, with the electronic differential braking the inside front wheel in corners so it turns in without running wide and finds grip coming out.
An Audi A1 1.2 TFSI manual that starts without a chain rattle and has a healthy clutch is the lesser risk; avoid the seven-speed S tronic, whose mechatronics unit fails from 27,000 miles. Our database holds 5 known Audi A1 faults, 5 rated high severity, and the sections above say which generation and engine carry them.
Insist on a cold start and stand by the bonnet: a metallic rattle for 2 to 3 seconds on a 1.2 or 1.4 petrol means a stretched timing chain. Read the MOT history for repeat advisories and ask for invoices for any work the seller mentions. Then paste the advert into the free check, which reads it against every known Audi A1 fault before you travel.
Owners report 46.7 mpg on average, about 78% of the official figure, from 1,019 submissions. Belt (1.6 TDI, EA189, EA288): 60,000 miles or 5 years, whichever comes first, so budget for it if the history does not show it done. The known faults page lists a rough repair cost against each fault. Audi A1 Real MPG by engine.
If you used the Honest John car-by-car reviews before the site closed in 2026, this is where the Audi A1 buying advice now lives. It is written from the archived owner reports and model notes (archived page, 87 items read for this model), our own known-faults database, the confirmed service intervals and the Real MPG figures. Every number on the page comes from that data, not from the text. The same data feeds our free advert check.
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