You have installed the hardware. Now, unlock the secret menus.
Eberspacher heaters are tolerant but not forgiving. The official wiring diagram is correct, but it assumes a perfect 13.8V at the heater. eberspacher installation instructions plus
The official installation instructions say: "Install on a flat, dry surface." Let's expand that. You have installed the hardware
angle with the outlet (pressure side) facing upward to prevent air locks. Dedicated Fuel Line You have installed the hardware. Now
The following installation instructions are applicable to most Eberspacher models, including the D2 and D4.