Eberspacher Airtronic M3 D4L ECU Control Unit 12v | 252955995000

The Eberspacher Airtronic M3 D4L ECU Control Unit 12V is the essential electronic brain for your 12V air heater. This replacement unit is designed to manage fuel metering, ignition, and sensor inputs, delivering dependable operation and diagnostic capabilities. It supports decoding fault codes such as P000150 through P000307, helping technicians identify circuit board temperature sensor issues, watchdog resets, output stage errors, and CAN communication faults. Compatible with the M3 D4L 12V heater, this ECU ensures precise control, safe startup, and reliable performance under demanding conditions. Ideal for HVAC maintenance, refurbishing vehicles, or restoring heating functionality where proper control electronics are required.