FILTER - FUEL PUMP D2/D4 DH
This is the 2nd main service item for an Eberspacher Diesel heater - replace this whenever you start seeing excess smoke coming from the heater whilst in use (not so much during start up /shut down - as this will be the fuel screen/fuel atomiser in the heater).
This fuel screen is at the bottom side (intake) of the fuel pump. Do not undo the upper side (high pressure - heater side of the pump).
Suitable for the following Eberspacher Diesel Air heaters: