Second Hand Peugeot 3008 ECU

Yes, every Peugeot 3008 has at least one ECU (engine control unit) regardless of fuel type or gearbox — it is a fundamental part of how the engine management system works on both petrol and diesel variants. The 3008 has been sold in two distinct generations: the first generation ran from 2009 to 2016, and the second generation from 2016 onwards. Because ECUs are engine-specific, the engine code printed on your V5 or available via a VIN check is the single most important detail to have before sourcing a used unit.

No — the first-generation (2009–2016) and second-generation (2016–present) 3008 are completely different platforms with different engines and wiring architectures, so ECUs from one generation will not cross over to the other. Even within the same generation, the engine code must match exactly, so always confirm this detail with the breaker against your registration before ordering.

Trim level does not determine which ECU you need — what matters is the engine code, fuel type, and gearbox type, not whether the car was an Active, Allure, or GT. A used ECU sourced from a lower trim car with the same engine code is mechanically the same unit, though it may carry software calibrated to slightly different optional equipment, so confirm the exact part number with the breaker. Bear in mind that immobiliser coding and ECU pairing to the vehicle are something you must confirm with the breaker and your fitting garage, as these are not straightforward plug-and-play swaps.

Yes, gearbox type can affect ECU compatibility because the engine management system communicates with the transmission, so a unit from a manual car may differ from one paired to an EAT6 or EAT8 automatic gearbox. Always supply the breaker with your engine code, fuel type, and gearbox type to narrow down a suitable unit. Confirm the exact part number against your registration before purchase.

No — diesel and petrol ECUs are not interchangeable, as they are programmed for entirely different fuelling, injection, and ignition strategies. Even if both cars are the same generation and year, the engine code will be different and the ECUs will not be compatible. Always confirm your engine code from your V5 or a VIN check and supply this to the breaker when requesting a quote.

Both years fall within the first-generation 3008 (2009–2016), so there is a reasonable chance of compatibility if the engine code and gearbox type match exactly, but this cannot be guaranteed without checking the full part numbers. Confirm the engine code from your V5, supply it to the breaker, and ask them to match it against the donor vehicle's registration — ancillary or software changes can occur mid-production without a formal generation change. Immobiliser pairing will also need to be addressed by a qualified auto-electrician or Peugeot specialist after fitting.