Peugeot 308 ECU Replacement Parts

Yes, every Peugeot 308 has at least one ECU (engine control unit) regardless of engine or fuel type — petrol, diesel, and hybrid variants all rely on one to manage engine functions. This is a standard component across all 308 generations and trims, so there is no variant of this model where the part simply does not exist.

The 308 Mk1 ran from 2007 to 2013, with a facelift in 2011, and the Mk2 launched in 2013 — so a 2010 unit is Mk1 and a 2014 unit is Mk2, meaning these are different generations with different engine management architectures. Even within a generation, the engine code on your V5 or a VIN check is the single most important detail, as ECUs follow the engine specification rather than the model year badge. Crossing a generation boundary like this is very unlikely to be compatible, but confirm the exact engine codes with the breaker against your registration before purchasing.

Both years fall within the 308 Mk2 generation (2013–2021, facelift around 2017), but being in the same generation does not automatically guarantee ECU compatibility. The engine code is the critical factor — a unit from a matching engine code is a far stronger starting point than matching by year alone. Confirm the full engine code and any mid-production changes with the breaker against your registration before buying.

Trim level does not affect ECU fitment on the 308 — Active, Allure, and GT Line are the same car mechanically when they share the same engine. What matters is the engine code, fuel type (petrol or diesel), and gearbox type (manual or automatic), not the badge on the tailgate. You may find cosmetic differences between cars from different trims when visiting a breaker, but these are irrelevant to whether the ECU itself will match yours.

Body style makes no difference to ECU fitment — the engine control unit is determined by the engine and drivetrain specification, not whether the car is a hatchback or an SW estate. As long as the engine code, fuel type, and gearbox type match, the body style of the donor car is irrelevant. Focus on getting the correct engine code from your V5 or a VIN check and supply that to the breaker.

ECUs on modern vehicles including the 308 are typically paired to the car's immobiliser and other modules during manufacture, which means a used unit may not simply plug in and operate without some form of programming or coding. Whether coding is required, and what that involves, depends on the specific unit and your car's system — this is something you should confirm with the breaker and a qualified auto-electrician or Peugeot specialist before purchasing. Findapart breakers supply the part, but coding or programming is typically the buyer's responsibility to arrange separately.