Used Mazda3 Buyer's Guide: BM, BN and BP Problems, Recalls and What to Check

Last updated: 26 October 2026

A used Mazda3 is a strong small-car buy. CarsGuide says “very few recurring problems seem to crop up” on 2014–2019 cars, and the petrol SkyActiv-G engines use a conventional 6-speed auto, not a CVT or dual-clutch. Watch for the troubled XD diesel, early BM manual gearboxes, engine mounts and, on 2019 BP cars, AEB and i-stop recalls.

Which Mazda3 generation are you looking at?

BM (late 2013 to 2016). Neo, Maxx and Touring use the 2.0-litre SkyActiv-G (114kW). SP25 grades use the 2.5 (138kW). Both come with a 6-speed manual or a 6-speed torque-converter automatic (CarsGuide). The XD Astina diesel hatch arrived in September 2014 with 129kW/420Nm and, for the first time in a Mazda3 diesel, an automatic option (Drive, CarsGuide).

BN (2016 to 2019). The facelift added AEB, improved cabin acoustics and dropped the diesel (CarsGuide). Drive says every post-facelift car has low-speed AEB, and Maxx and above add reverse AEB, blind-spot monitoring and rear cross-traffic alert (Drive). WhichCar notes the low-speed Smart City Brake Support uses a laser sensor at the top of the windscreen (WhichCar).

BP (2019 on). The hatch went on sale in the second quarter of 2019 and the sedan around July. Every grade got AEB, radar cruise, blind-spot monitoring and lane-keep assist. The G25 gained cylinder deactivation (Drive, Drive range review). G20 and G25 run on 91 RON. The X20 Astina's supercharged SkyActiv-X M Hybrid engine, listed in the 2021 range, needs 95 (CarExpert).

The MY24 update in late 2023 dropped the manual and the mild hybrid, leaving the range automatic-only. It also added cylinder deactivation to the G20 and a larger 10.25-inch screen (CarExpert, CarExpert G20 review).

What are the most common Mazda3 problems?

These come from Australian motoring media and the mechanics they interviewed. They're reported issues, not failure rates.

BM/BN (2013–2019)

CarsGuide's used review says “very few recurring problems seem to crop up”, and that most issues come from neglect and abuse (CarsGuide). Its watch list:

• Early manual gearboxes. Some owners reported hard shifting into some gears and the car jumping out of third. CarsGuide says Mazda redesigned the gearbox by late 2014.
• Early automatics. Some needed replacing, but CarsGuide says the problem “wasn't a huge one overall”.
• Faded or peeling paint on black and metallic cars.
• Kerbed rims, mangled bumpers and poor repairs.

carsales adds sun damage to interior plastics: cracked dash pads, faded stalks and sagging door trims or headlining (carsales).

Wear items mechanics see

A Sydney parts-shop mechanic told Drive the common replacements are a plastic coolant outlet that becomes brittle and leaks, a hydraulic right-hand engine mount that collapses on higher-kilometre cars, and rear shocks and sway links (Drive).

Infotainment

MZD Connect debuted in this Mazda3 (CarExpert). In a 2016 CarsGuide Q&A, an owner reported screen lock-ups. Mazda recommended owners ask their dealer to fit the latest free MZD Connect software update (CarsGuide). Two things aren't faults: the touchscreen locks out once the car moves, and the BP's Mazda Connect screen is run by the rotary dial, not touch.

Should you avoid the Mazda3 diesel?

CarsGuide does. It names the XD diesel as the Mazda3 it would “give a miss” (CarsGuide). Its used review explains why (CarsGuide):

• Oil dilution. Many owners didn't drive far or fast enough for the diesel particulate filter to clean itself. The engine injected extra diesel to force a regeneration, and some got past the piston rings into the oil, with “the potential for major engine damage”.
• Turbochargers “could die young”, and replacement was the only fix.
• Recall REC-000894 covers carbon build-up in the intake shutter valve and premature engine wear on Mazda3, Mazda6 and CX-5 diesels (below).

We found no Australian reports of oil dilution on the petrol SkyActiv-G engines. The documented issue is diesel-specific.

What Mazda3 recalls should I check?

We confirmed these on vehiclerecalls.gov.au. Unit counts cover every model in each notice. Check by VIN with Mazda on 1800 034 411.

WhichCar reports the AEB and i-stop recalls cover MY19 cars built from 24 March to 24 December 2019 (WhichCar). CarsGuide says 1,709 of the REC-000890 cars are Mazda3s (CarsGuide).

What our inspectors check on a Mazda3

This is what we look at, and which package includes it. It's a list of checks, not a claim that the car has these faults.

1. 1.OBD-II scan, visual safety check, engine bay and leak check, and battery, starter and alternator tests. (All packages)
2. 2.Brake pads and tyre tread measured. (All packages)
3. 3.Full mechanical inspection. Engine, gearbox, cooling system (including the coolant outlet), belts, engine mounts, exhaust, driveline and steering. (Comprehensive and Elite)
4. 4.Suspension bushes and mounts. (Comprehensive and Elite)
5. 5.Undertray removed where fitted, safe and permitted, with underbody photos. (Comprehensive and Elite)
6. 6.Full electrical test and interior electronics, including the screen, reversing camera image, wipers and warning lights. (Comprehensive and Elite)
7. 7.Paint and body repair indicators, including faded or peeling paint and bumper repairs. (Comprehensive and Elite.) A paint thickness gauge on every panel is Elite only.
8. 8.Odometer rollback check and PPSR. (Comprehensive and Elite)
9. 9.Advanced history deep-dive (odometer, owners, stolen and written-off status, recalls) and a market valuation. (Elite only)
10. 10.Cold-start assessment. (Elite only, when the seller leaves the engine cold)

Road tests are 3–5km on Essential, 6–10km on Comprehensive and 10–12km on Elite.

How should you test-drive a used Mazda3?

• Ask for the engine cold. It should start quickly and idle smoothly, and every warning light should go out.
• Gentle take-offs from a stop, several times. Feel for clunks, which can point to a tired engine mount.
• On a manual, select every gear, including third, and check none is hard to engage. The car shouldn't jump out of gear.
• On an auto, shifts should be smooth and prompt, with no flare or slurring.
• In traffic, check the engine restarts cleanly after i-stop (see REC-000895).
• Over a speed hump at walking pace, listen for knocks from the rear shocks or sway links.
• While parked, check the screen responds, the reversing camera image is steady and Bluetooth or CarPlay connects.
• Afterwards, look for coolant drips or a sweet smell near the front of the engine.

Never try to trigger AEB yourself. Just confirm no AEB warnings show.

What paperwork and PPSR checks do you need?

• A PPSR check for finance owing and stolen or written-off status (included in Comprehensive and Elite). See PPSR check NSW.
• Logbook stamps that match the odometer. The BP's schedule is every 12 months or 10,000km (Drive), so check for gaps.
• Recall completion by VIN, especially the 2019 AEB, i-stop and cylinder-deactivation campaigns.
• Usage pattern on a diesel. Short-trip city use is the risk CarsGuide describes.
• Statutory warranty. Drive notes a dealer-bought car under 10 years old or 160,000km gets 5,000km or three months of cover in most states (Drive).

How do you negotiate on a used Mazda3?

• Engine mount, coolant outlet or rear shock findings are fair grounds for money off.
• Sun-damaged trim and faded paint cost real money to fix.
• A diesel with a short-trip history carries risk, so price it in or walk.
• Open recalls cost you nothing, but ask the seller to clear them before settlement.

Our Elite inspector can negotiate on the spot.

Is a used Mazda3 a good buy? Our verdict

Yes, on condition and history.

• BM/BN petrol: Drive calls the 2017–2018 facelift “the best bang-for-buck Mazda 3 you can buy”. CarsGuide prefers the SP25 if the budget allows.
• XD diesel: skip it unless the history proves long, regular runs.
• BP: better equipped as standard. On a 2019 car, confirm the recalls are done.

Mazda3 FAQs

What are the most common used Mazda3 problems?

CarsGuide says few problems recur on 2014–2019 cars. It flags early BM manual gearboxes jumping out of third, some early automatics replaced, faded paint and the diesel's oil dilution. A mechanic told Drive about brittle coolant outlets, collapsed right-hand engine mounts, and worn rear shocks and sway links. These are reports, not failure rates.

Is the Mazda3 automatic reliable?

CarsGuide says some early BM automatics needed replacing, but it wasn't a widespread problem. It also notes buyers appreciate that Mazda used a conventional 6-speed torque-converter automatic rather than a CVT or dual-clutch. Check shift quality on a test drive, and have the gearbox and mounts inspected.

Does the Mazda3 have oil dilution problems?

The documented case is the 2014–2016 XD diesel. CarsGuide explains that diesel injected to regenerate the particulate filter could get past the piston rings into the oil, risking major engine damage, especially with short-trip use. We found no Australian reports of the same problem on the petrol SkyActiv-G engines.

Was there a Mazda3 AEB recall?

Yes. REC-000896 covers 13,768 BP Mazda3s from 2019, where Smart Brake Support may falsely detect an object and brake the car unexpectedly. Dealers reprogram the control module for free. WhichCar says affected cars were built from 24 March to 24 December 2019. Check by VIN.

Which used Mazda3 years are best?

Drive calls the facelifted 2017–2018 BN “the best bang-for-buck Mazda 3 you can buy”, with low-speed AEB on every grade. CarsGuide rates BM/BN cars “very good” and would skip the diesel. The BP adds more standard safety, but check its 2019 recalls. Condition and history matter more than the year.

What Mazda3 recalls should I check?

On BM/BN cars, check REC-000885 (wipers), REC-005733 (reversing camera wiring), REC-005009 (BN fuel pump) and, on the diesel, REC-000894. On 2019 BP cars, check REC-000896 (AEB), REC-000895 (i-stop), REC-000890 (cylinder deactivation) and REC-000887 (indicator lamps). Run the VIN on vehiclerecalls.gov.au.

Is a manual Mazda3 worth buying?

It can be. CarsGuide says the SP25 is the best manual option, and Mazda redesigned the BM manual gearbox by late 2014 after reports of hard shifts and jumping out of third. On an early BM, test every gear carefully. Manuals were dropped with the late-2023 update, so they're becoming rarer.

Do you inspect Mazda3s in my area, and what does it cost?

Yes. We're mobile across Greater Sydney, Newcastle (including Maitland), the Central Coast, the Blue Mountains and Wollongong/Illawarra, 7 days. Essential is $199, Comprehensive is $329 and Elite Buyers' Protection is $449. No travel charges, the quoted price is the price, in every region we cover. Afterpay is available.

Aussie Auto Care Pty Ltd · ABN 19 701 853 090 · 02 8320 1246 · Mobile pre-purchase inspections, 7 days.

Sources

CarsGuide, Used Mazda 3 review 2014–2019

CarsGuide, Mazda 3 reviews (recalls and years to avoid)

carsales, Buying a used Mazda3 BM/BN-series (2013–2018)

Drive, Mazda3 XD Astina diesel review (2014)

CarsGuide, Mazda 3 XD Astina diesel 2014 review

Drive, Which year Mazda 3 is best to buy used?

WhichCar, AEB is not the safety net you may think it is

Drive, 2019 Mazda 3 pricing and specs

Drive, Mazda 3 2019 range review

CarExpert, 2021 Mazda 3 price and specs

CarExpert, 2024 Mazda 3 review

CarExpert, 2024 Mazda 3 G20 Evolve review

CarExpert, Why the 2026 Mazda CX-5 ditches physical controls

CarsGuide, Mazda3 screen locking up (Q&A)

WhichCar, Mazda 3 AEB recall

CarsGuide, Mazda 3, Mazda 6 and CX-5 recalled over engine stalling issue

REC-000896

REC-000895

REC-000890

REC-000887

REC-000885

REC-005009

REC-005733

REC-000894

PPSR