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Emergency
KNOWN FAULTS · Peugeot

Peugeot 308 (III) 1.5 BlueHDi common problems.

2021–2026 · Diesel

Sources are not verified in real time and no entry confirms that your car is affected.

8 known faults with sources

AdBlue system failure (start countdown)Exhaust and emissions (AdBlue)
Engine / equipment
1.5 / 1.6 / 2.0 BlueHDi with AdBlue (Peugeot, Citroën, DS, Opel)
Period mentioned
Approx. 2014 onwards
Symptoms
Emission system fault message and a “starting impossible in X km” countdown, AdBlue/UREA warning and engine light.
Possible cause described
Failure of the AdBlue tank pump module (circuit board, pressure sensor or heater) or of the AdBlue injector. The engine does not stop while driving, but once the countdown reaches zero it will not restart.
Check for the garage
Diagnose with Diagbox or equivalent: AdBlue pressure, flow test and tank temperature.
Cost cited in the source
Complete module or tank: approx. €600–1,500 (estimate)A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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1.5 BlueHDi camshaft chainValve timing
Engine / equipment
1.5 BlueHDi (DV5): Peugeot 208/2008/308/3008/5008/508/Rifter, Citroën C3/C4/C5 Aircross/Berlingo, Opel, DS, Fiat
Period mentioned
2017–2023
Symptoms
Rattle from the top of the engine, loss of power; in severe cases the chain breaks and the engine fails.
Possible cause described
The 7 mm chain linking the two camshafts wears prematurely, influenced by soot in the oil. Stellantis replaced it with an 8 mm chain in 2023 and opened an inspection campaign.
Check for the garage
Ask the dealer whether the car is in the campaign (free inspection and replacement if needed) and whether the 8 mm chain is fitted.
Cost cited in the source
€700–1,400 for the chain; €4,000–7,000 if it breaksA rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Applies if: Only if fitted with the automatic gearbox described in the record.

EAT6/EAT8 jerking and torque converterAutomatic gearbox
Engine / equipment
Aisin EAT6 and EAT8 automatic gearboxes (308, 3008, 5008, 508, 2008, C4 Picasso, C5 Aircross, C4, DS 7, Grandland…)
Period mentioned
2013–2026
Symptoms
Hesitation or a jolt between 1st and 2nd, torque converter shudder in traffic, harsh or delayed shifts and a gearbox fault warning, especially on 2017–2019 3008s.
Possible cause described
Torque converter wear or drift, valve deposits from degraded oil and software faults. Peugeot treats the oil as lifetime, but dirty or low oil causes harsh shifts.
Check for the garage
Check oil level and condition, update the gearbox software at the dealer and, after an oil change, record it with DiagBox and reset the adaptations.
Cost cited in the source
Oil change and update: the most common fix; torque converter or valve body: specialist garage repairA rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Applies if: Only cars built from 1/11/2023 to 12/2/2026; confirm by VIN.

Interior door handles that deactivate with the engine running (308, 408, 3008, 5008, C5 X, DS 4 and DS N°8)Bodywork
Engine / equipment
Peugeot 308, 408, 3008 and 5008, Citroën C5 X, DS 4 and DS N°8 built between late 2023 and 2026
Period mentioned
2023–2026
Symptoms
With the car switched on, one or all four doors cannot be opened from inside.
Possible cause described
A software fault in the vehicle supervision module (VSM) can deactivate the interior handles with the engine running, so occupants could not get out, for example after a crash. Recall published in June 2026 on Rappel Conso (45,500 cars in France): 308 built from 1/11/2023 to 12/2/2026, 408 from 3/11/2023 to 9/2/2026, 3008 from 9/10/2023 to 9/7/2025 and 5008 from 5/12/2023 to 10/7/2025, plus some C5 X, DS 4 and DS N°8. The VSM software is updated in about 30 minutes.
Check for the garage
Check the campaign by VIN at the dealer; meanwhile, test the interior handles with the car switched on.
Cost cited in the source
Free under the recall.A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Peugeot 308 (III) 1.5 BlueHDi: known faults of the engine according to L'argusEngine
Engine / equipment
1.5 BlueHDi in the Peugeot 308 (III)
Period mentioned
2021–2026
Symptoms
Loss of power, jerking or will not start; Engine warning light on (up to 16/11/2022); Engine warning light on (up to 31/12/2022); Will not start, knocking, slipped or broken camshaft chain (up to 02/02/2023); Oil leak between the camshaft carrier and the cylinder head (up to 31/03/2023); Hard starting, with black instrument cluster and centre screen (up to 01/03/2024); Coolant temperature, service and/or engine warning lights on (up to 17/03/2024); Loss of power (up to 01/07/2024)
Possible cause described
According to the brand's technical notes reported by L'argus (each date shows up to when the affected cars were built): 1) Loss of power, jerking or will not start: Injection pump and rail, injectors to be replaced. 2) Engine warning light on (up to 16/11/2022): Glow plugs. 3) Engine warning light on (up to 31/12/2022): Soot sensor. 4) Will not start, knocking, slipped or broken camshaft chain (up to 02/02/2023): Camshaft chain and tensioner, timing kit, camshaft and valves. Fully covered up to 7 years or 180,000 km. 5) Oil leak between the camshaft carrier and the cylinder head (up to 31/03/2023): Seal and sealing to be rectified. 6) Hard starting, with black instrument cluster and centre screen (up to 01/03/2024): Radio-frequency supervision unit to be replaced (recall MM4). 7) Coolant temperature, service and/or engine warning lights on (up to 17/03/2024): Cooling fan assembly to be replaced. 8) Loss of power (up to 01/07/2024): Heat exchanger (intercooler) air inlet union to be replaced.
Check for the garage
Compare your symptom and your car's build date with this list. If they match, tell the workshop and ask them to check that part first before replacing others. The brand or a warranty extension covers some repairs: ask the dealer with the car's details.
Cost cited in the source
No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Peugeot 308 (III): known faults of the chassis, steering and brakes according to L'argusSuspension and steering
Engine / equipment
Peugeot 308 (III), all engines
Period mentioned
2021–2026
Symptoms
Squeak at the front; Knock when the wheels change direction (up to 03/10/2022)
Possible cause described
According to the brand's technical notes reported by L'argus (each date shows up to when the affected cars were built): 1) Squeak at the front: Suspension top mounts. 2) Knock when the wheels change direction (up to 03/10/2022): Front driveshaft nuts and lower ball joint nuts.
Check for the garage
Compare your symptom and your car's build date with this list. If they match, tell the workshop and ask them to check that part first before replacing others. The brand or a warranty extension covers some repairs: ask the dealer with the car's details.
Cost cited in the source
No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Peugeot 308 (III): known faults of the electronics and interior according to L'argusElectrical and electronic systems
Engine / equipment
Peugeot 308 (III), all engines
Period mentioned
2021–2026
Symptoms
[multimedia] Green lines, "snow" or frozen image on the centre screen with Visio Park 1 (up to 23/01/2022); [multimedia] Blurred camera image with Visio Park 1 (up to 09/06/2023); [multimedia] Various radio and navigation faults (up to 06/04/2023); [multimedia] Instrument cluster screen black, or even the touchscreen (up to 01/03/2024); [glovebox] Glovebox lid will not stay closed (up to 15/07/2022); [climate control] Air conditioning cools poorly or does not work (up to 16/08/2022); [seats] Side play and/or noise from the front seat (up to 28/02/2023)
Possible cause described
According to the brand's technical notes reported by L'argus (each date shows up to when the affected cars were built): 1) [multimedia] Green lines, "snow" or frozen image on the centre screen with Visio Park 1 (up to 23/01/2022): Panoramic camera to be replaced. 2) [multimedia] Blurred camera image with Visio Park 1 (up to 09/06/2023): Panoramic camera to be replaced. 3) [multimedia] Various radio and navigation faults (up to 06/04/2023): Update. 4) [multimedia] Instrument cluster screen black, or even the touchscreen (up to 01/03/2024): Radio-frequency supervision unit to be replaced (recall MM4). 5) [glovebox] Glovebox lid will not stay closed (up to 15/07/2022): Glovebox to be replaced. 6) [climate control] Air conditioning cools poorly or does not work (up to 16/08/2022): Evaporator. 7) [seats] Side play and/or noise from the front seat (up to 28/02/2023): Tighten the seat frame bolts.
Check for the garage
Compare your symptom and your car's build date with this list. If they match, tell the workshop and ask them to check that part first before replacing others. The brand or a warranty extension covers some repairs: ask the dealer with the car's details.
Cost cited in the source
No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Peugeot 308 (III): known faults of the body according to L'argusBodywork
Engine / equipment
Peugeot 308 (III), all engines
Period mentioned
2021–2026
Symptoms
Rear wiper fault (up to 23/06/2022); Front left door does not lock and the mirror does not fold (up to 08/07/2022)
Possible cause described
According to the brand's technical notes reported by L'argus (each date shows up to when the affected cars were built): 1) Rear wiper fault (up to 23/06/2022): Motor to be replaced. 2) Front left door does not lock and the mirror does not fold (up to 08/07/2022): Door lock.
Check for the garage
Compare your symptom and your car's build date with this list. If they match, tell the workshop and ask them to check that part first before replacing others. The brand or a warranty extension covers some repairs: ask the dealer with the car's details.
Cost cited in the source
No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database

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Other engines of the Peugeot 308 (III)