2023 — 2026
1.2L I3 Turbo (EB2ADTS)
Petrol
Inspect the wet timing belt through the oil filler neck using a torch, looking for micro-cracks, swelling, or fraying on the belt edges. | Note: The 1.2L PureTech (EB2ADTS) engine uses a 'wet' timing belt that runs in engine oil. Incompatible oil or neglected service cycles cause the belt to degrade, shedding material that clogs the oil pickup strainer and causes engine oil starvation.
Perform several low-speed stop-and-start maneuvers, checking for sudden jerks or delayed engagement when the EAT8 transmission shifts between 1st, 2nd, and 3rd gears. | Note: The Aisin-sourced 8-speed automatic can experience rough shifting or hesitation, which is often rectified by a transmission ECU software reflash, but could indicate worn fluid if neglected.
Extensively operate the Peugeot i-Connect Advanced infotainment system, customizing the digital 'i-Toggles' and testing wireless CarPlay/Android Auto stability for at least 10 minutes. | Note: This generation of the 408 is prone to software bugs, screen freezing, blackouts, and pairing dropouts. Ensure the dealer has loaded the latest system firmware updates.
Drive over coarse-chip Kiwi bitumen at 80-100 km/h to evaluate road noise, and listen for front suspension knocks or cabin rattles over uneven surfaces. | Note: The 408's low-profile tyres and stylish fastback cabin can amplify road roar on typical New Zealand rural highways. Front stabilizer bar links can also wear prematurely, causing faint knocking noises.
Routine oil and filter swap using strictly PSA B71 2010 spec oil. Comprehensive diagnostic scan to check for infotainment and ADAS camera fault codes. Visual inspection of the wet timing belt width via the oil cap.
Major service interval. Replace the high-stress spark plugs to prevent engine misfires, change the engine air and cabin filters, perform a brake fluid flush, and physically measure the wet belt with the Peugeot wear-gauge.
Critical milestone. Complete replacement of the wet timing belt kit, water pump, and auxiliary belts. Perform an intake valve carbon clean (decoke) to remove direct-injection carbon buildup, and drain and fill the EAT8 gearbox fluid.
Always specify and verify that oil conforming strictly to PSA B71 2010 (0W-20) or PSA B71 2018 is used during servicing to protect the wet timing belt.
Use a dedicated timing belt wear-gauge (PSA tool) at every annual service to monitor belt swelling.
Run the vehicle exclusively on 95 or 98 Octane premium unleaded fuel to minimize low-speed pre-ignition (LSPI) risk and reduce carbon deposits on intake valves.
Keep the Peugeot i-Connect infotainment system and safety cameras updated to the latest software versions via OTA or dealer tool.
Clean the plenum chambers under the windscreen regularly to prevent leaf litter from blocking drains, which can cause water ingress into the cabin electronics.
Estimated repair costs if issues arise
Preventative maintenance required every 5-6 years or 100,000 km. Neglecting this risks complete engine failure.
Recommended around 80,000 km to cure rough idling, flat spots in acceleration, and high fuel consumption caused by direct injection carbon buildup.
European cars wear brake components quickly; expect replacement every 40,000 - 50,000 km depending on driving style.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer