Water ingress in the 1.2 Hybrid 48 V belt starter-generator

Engine / equipment

1.2 Hybrid 48 V: Peugeot 208 and 2008, Citroën C3, C3 Aircross, C4 and C4 X, DS 3, Opel Corsa, Frontera and Mokka, Jeep Avenger, Alfa Romeo Junior, Fiat 600 and Grande Panda, Lancia Ypsilon

Period mentioned

2023 onwards

Symptoms

Engine or electrical-fault warning light, a hot or burning smell under the bonnet and, in extreme cases, an engine-bay fire.

Possible cause described

There is too little clearance between the petrol particulate filter duct and the 48 V hybrid system’s guard (belt starter-generator): in humid conditions water can get in, an electric arc can form and it can overheat. Stellantis recalled about 700,000 cars worldwide (36 incidents, 12 with fire) and advises against pressure-washing the engine until the repair.

Check for the garage

Check the recall by VIN; do not pressure-wash the engine; with the warning or a burning smell, stop and park outdoors.

Cost cited in the source

Free under the recall.A rough figure from the original database, not an up-to-date quote.

Sources from the original database