The lesser-risk Citroen C3 is a 1.2 PureTech petrol from 2016 with proof its wet timing belt's been checked or changed, since that belt's a serious known fault; avoid the 1.5 BlueHDi diesel, which carries two.
4 known faults, 3 rated high severity in our database; owners report 51.7 mpg, 79% 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 a Citroen C3 advert (free) →A third-generation C3, sold from 2016, with the 1.2 PureTech petrol is the lesser risk, but only with paperwork for its wet timing belt. That belt's a serious known fault on 2012 to 2022 cars: it breaks down at 13,000 to 65,000 miles, can block the oil pickup, starve the engine of oil and kill the brake vacuum pump. The 1.5 BlueHDi diesel carries two serious known faults and the 1.6 BlueHDi shares one of them, so pass on both.
On the 2010 to 2016 C3, pick a manual, and check the petrol's belt history too. The AL4 four-speed automatic, on cars up to 2013, is a known fault that loses line pressure and shifts harshly at 60,000 to 100,000 miles when its fluid's old or overheated. The 1.2 VTi fitted from 2012 has the same wet belt and the same known fault, and one owner's 2013 1.2 VTi had its belt come off at 12,996 miles.
The original 2002 to 2010 C3 has the same AL4 automatic problem, so a manual's the better bet there too. On its 1.4 petrol, a failing water pump bearing can throw the timing belt off and wreck the engine. By early 2010 these cars were showing a growing number of Multiplex wiring faults, often starting with the radio, and a recall covered early cars where water could get into the ABS control unit and start a fire.
The all-new C3 launched in 2024 runs its 1.2 petrol, on both the Turbo 100 and the Hybrid, with a timing chain in oil, so there's no belt to replace. There's too little on record about it to judge it either way yet.
The 1.2 PureTech petrol is the lesser risk in the third-generation car, and that's only true with proof of belt care. Its timing belt runs in oil and degrades at 13,000 to 65,000 miles on 2012 to 2022 cars. The schedule was cut from 10 years to every 62,000 miles or 6 years, with the belt checked at every service, so a car serviced to the old one can already be overdue. The Mk2's 1.2 VTi from 2012 and the 1.0 PureTech share that wet belt.
Steer clear of the 1.5 BlueHDi diesel. It has two serious known faults: its AdBlue system fails, owners have had it go well before 30,000 miles and it usually needs a new tank, pump and injector, and its 7mm camshaft chain can stretch and snap at 50,000 to 90,000 miles, wrecking the top of the engine. It also has a dry cambelt, due every 60,000 miles or 60 months, which drives the water pump too.
The 1.6 BlueHDi isn't a safe fallback either, since it shares the AdBlue pump failure on 2014 to 2022 cars. On the older 1.6 HDi, the belt's due at 87,000 miles or 10 years, with the water pump replaced alongside it. Reports describe turbo oil starvation on the 1.6 HDi at around 100,000 miles, caused by carbon building up in the turbo's oil feed, though engines from 2008 on got modified parts.
For gearboxes, a manual's the pick on anything up to 2013, because the AL4 four-speed automatic is a known fault at 60,000 to 100,000 miles. On older cars the Sensodrive's snow mode has been known to fail in the cold, or switch itself on in the heat and hold the car in 2nd gear. The third-gen car's five-speed manual has a loose, vague shift, but there's no known fault against it.
Belt paperwork decides a 1.2 PureTech: ask for the receipt for a new belt, or service records showing it was checked each time. On the drive, a low oil pressure light, an engine management light or a brake pedal that's gone hard all point to a belt breaking up. Ask too whether a main dealer has done the engine software update from the campaign on older PureTech 130 engines.
On a BlueHDi, watch the dash for an AdBlue warning or a countdown saying the engine won't restart after so many miles, since either means the AdBlue system's failing. On a 1.5, listen for a ticking or rattling from the top of the engine, which is the camshaft chain stretching, and don't buy one that loses power, stalls or won't start.
Paperwork for recalls matters too. A 2017 third-gen car needs proof its starter motor relay was checked, because a faulty one could stop the starter working and overheat it, with a fire risk. On a 2010 to 2016 car, ask about the battery earth cable, suspension fixing and ABS and ESP recalls.
On an automatic up to 2013, flashing Sport and Snow lights, a gearbox fault warning, a thump into gear or a car stuck in third are the signs to leave it. Check the power steering stays light all the way through the drive: there's a report of the assistance cutting out now and then on a C3, and one owner's 2011 car needed a new steering rack at 34,000 miles.
Paste the advert into the free check and it runs these against the listing, the MOT history and the DVLA record before you travel.
Yes, as a manual, but don't buy a 1.2 VTi from 2012 without proof its wet timing belt has been checked or changed. That belt's the same known fault as the later PureTech's, turning up between 13,000 and 65,000 miles, and one owner's 2013 1.2 VTi threw its belt at 12,996 miles, even though it had been checked on a service visit at 3,200 miles.
The AL4 four-speed automatic, fitted up to 2013, is a known fault that shifts harshly and drops into limp mode at 60,000 to 100,000 miles, and one owner's 2011 automatic showed a gearbox fault warning and lurched forward after a long crawl in rush-hour traffic. On the diesels, the 1.6 BlueHDi from 2014 shares the AdBlue system failure, which owners have had between 22,000 and 28,500 miles, while the older 1.6 HDi's cambelt is due at 87,000 miles or 10 years.
Steering's the other thing to test: one report describes the power assistance cutting out now and then, and one 2011 car needed a new steering rack at 34,000 miles. One 2012 car had its wraparound windscreen replaced three times and then crack again, so look closely at the glass. Ask for proof of the recalls for the battery earth cable, loosening suspension fixings, ABS and ESP faults, and airbags that could fail to deploy properly.
Real-world economy on this generation: Citroen C3 55.1 mpg, Citroen C3 46.9 mpg.
Yes, if it's a 1.2 PureTech petrol with a belt receipt or a full record of belt checks, and no if it's the 1.5 BlueHDi diesel. The petrol's wet timing belt is a serious known fault that's turned up anywhere from 13,000 to 65,000 miles, so a low mileage on its own doesn't clear a car.
The diesels are the harder sell. Both the 1.5 and 1.6 BlueHDi suffer AdBlue system failures, turning up between 22,000 and 28,500 miles on owners' cars and usually needing a new tank, pump and injector, and the 1.5 adds a camshaft chain that can snap at 50,000 to 90,000 miles. The five-speed manual's shift isn't precise, and the handling isn't as sharp as it could be, which matters if you enjoy driving.
There was a 2017 recall to check and replace the starter motor relay, which could stop the starter working and overheat it. One owner of a 2017 1.2 PureTech had condensation fogging the reversing light lens, so it's worth a look at the rear lights while you're walking round the car.
Real-world economy on this generation: Citroen C3 46.9 mpg, Citroen C3 46.7 mpg.
Sellers rarely admit these faults outright
Paste any Citroen C3 advert and we check it against the faults, the MOT record and these figures in seconds.
Check an advert now (free) →Owners report 51.7 mpg across the Citroen C3 engines with data, about 79% of the official figure, from 674 submissions.
Citroen C3 Real MPG by engine →The ride's the C3's strong point. The 2010 to 2016 car soaks up bumps very well, and the third-generation model carries that on, adding seats that stay comfortable on a longer run. It's a small car that's set up for comfort first, and you'll feel it the first time you drive one over a broken road.
It's a good-looking thing, too. The 2010 to 2016 hatchback has a neat, tidy shape, and under the bonnet it shares some of its engines with the MINI. That mix of a smart shape and a comfy ride is what makes it such a pleasant small car to live with day to day.
The lesser-risk Citroen C3 is a 1.2 PureTech petrol from 2016 with proof its wet timing belt's been checked or changed, since that belt's a serious known fault; avoid the 1.5 BlueHDi diesel, which carries two. Our database holds 4 known Citroen C3 faults, 3 rated high severity, and the sections above say which generation and engine carry them.
A third-generation C3, sold from 2016, with the 1.2 PureTech petrol is the lesser risk, but only with paperwork for its wet timing belt. On the fault record the Mk2 (2010 to 2016) carries 1 known fault against 3 on the 3rd Gen (2016 on). Each generation's section above gives the detail. Citroen C3 faults by generation.
Belt paperwork decides a 1.2 PureTech: ask for the receipt for a new belt, or service records showing it was checked each time. 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 Citroen C3 fault before you travel.
Owners report 51.7 mpg on average, about 79% of the official figure, from 674 submissions. Wet belt (1.2 PURETECH, 1.2 VTI): 62,000 miles or 6 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. Citroen C3 Real MPG by engine.
If you used the Honest John car-by-car reviews before the site closed in 2026, this is where the Citroen C3 buying advice now lives. It is written from the archived owner reports and model notes (archived page, 52 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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The Citroen C3 is one decision. Reading the advert, the history and the seller are the rest, and these cover them.
Looking at a Citroen C3 right now? Check the advert before you go and see it.