Inner leak tightness - Testing hydraulic system, fuel pressures and inner leak tightness, ME-SFI - AD07.61-P-7000-02A

	Scope of test	Tester/test connection	Operation/prerequisite	Specified value	Possible cause/remedy
1.0	Fuel system for inner leaks  Notes on test connection:  Pressure measuring unit connected to test connection		Switch off engine after 30 minutes	> 3.0 bar > 2.5 bar	Quick pressure drop: check valve at the fuel pump Slow pressure drop: AD07.61-P-7002-01A  AD07.61-P-7002-01B  Diaphragm-type pressure regulating valve