Peugeot 3008: 1.2 PureTech Injector Copper Seal Fuel Leak

The EB2DT 1.2 PureTech direct injectors in the 3008 P84 share the same copper seating washer design flaw found across the PSA group. The hardened copper washers fail to maintain a gas-tight and liquid-tight seal at the injector-to-head interface, allowing high-pressure petrol to seep externally. Fuel tracks down the rear of the engine towards the bulkhead and may enter the cabin via the firewall. Given the proximity of the exhaust system and turbocharger, external high-pressure fuel leaks on this engine create a genuine fire hazard. PSA developed a repair kit with updated seals and a dedicated installation tool, but poorly executed repairs without the correct tooling can result in recurring leaks. Vehicles that have had seals replaced once should be checked carefully for re-leaking.

• Petrol smell from engine bay after warm-up or under load
• Fuel odour inside cabin particularly through dashboard vents
• Wet or oily carbon-stained residue around injector bases
• Potential minor fire risk — fuel smell intensifies on hot engine

1. 1

   Pop the bonnet immediately after a motorway run and smell around the engine.

2. 2

   Inspect each injector base with a torch for wet fuel, carbon tracking, or dried residue rings.

3. 3

   Run a clean cloth around each injector body.

4. 4

   Check the underside of the fuel rail for any fuel deposits.

5. 5

   Confirm with the seller whether injector seals have ever been replaced.

Parts involved: Fuel injector.

$380 to $1,050 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Have you ever noticed a petrol smell from the engine or cabin?”
• “Have the injector copper seals ever been replaced, and if so when and by whom?”
• “Has the car ever had a fire-related inspection or any engine bay cleaning that might have masked a leak?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.