OM606 Coolant circuit - Printable Version +- STD (https://www.superturbodiesel.com/std) +-- Forum: Tuning (https://www.superturbodiesel.com/std/forumdisplay.php?fid=6) +--- Forum: Engine (https://www.superturbodiesel.com/std/forumdisplay.php?fid=7) +--- Thread: OM606 Coolant circuit (/showthread.php?tid=7865)

OM606 Coolant circuit - JCGrimes - 09-14-2017 I am pulling my hair out trying to confirm the coolant routing for an OM606 Turbo installed in a G Wagen.  The EPC site shows a schematic which doesn't help.  Specifically: 1) The coolant flows from a port in the head behind the oil filter to a diverter which flows either: directly to the U-shaped line attached to the water pump housing, or through the cabin heater then the water pump housing, correct? 2) There is a threaded port in the block right next to the oil feed line for the turbo.  I believe this is for a valve used for draining the coolant, correct? 2) The coolant expansion tank connects from two lines: The top line goes to the small connection on the top of the radiator for overflow.  Where does the lower line (fill) connect to the cooling system? Sorry if this has already been covered, I have looked! Thanks again, John RE: OM606 Coolant circuit - AlanMcR - 09-15-2017 Does this help? RE: OM606 Coolant circuit - JCGrimes - 09-15-2017 Thanks again Alan, this is exactly what I need. What is this from? I can't find it in the EPC?