Check: Pre/post-heat circuit
C25 · Repair procedures · DIESEL FUEL · Checks · Reference B1HD04P0
1. Principles of operation The post-heat time delay starts as soon as the starter is released (for 180 seconds). During the first 15 seconds, the supply to plugs cannot be interrupted. After 15 seconds, the supply to the heater plugs can be interrupted by : A coolant temperature above 60 °C. 2…