CITROEN C3 Aircross, C4, C4X, Celysée

The problem

Due to a faulty software of the electronic engine control unit (ECU), an incorrect value may be given when the data are processed by the vehicle. This may result in nitrogen oxide (NOx) emissions above the regulatory limits. Excessive NOx emissions pose a risk to the environment.

The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.

Risk

Serious risk · Environment · France

What owners should do

Type of economic operator taking notified measure(s): Manufacturer. Category of measure(s): Recall of the product from end users. Date of entry into force: 09/01/2025 Manufacturer code MQ6.