Location and assignment of ground points, engine compartment, right - GF00.19-P-2000-02RAB

Engine 156 in model 251 

Fig 1: Assignment Of Ground Points And Right Engine Compartment Location

Courtesy of MERCEDES-BENZ USA

Ground point	Designation	Component	Designation	Plug Pin
W11	Ground (engine - electrical line connected)	→ C4/2	Radio interference suppression capacitor 2	2
		→ S43	Oil level check switch	1
		→ T1/1	Cylinder 1 ignition coil	3
		→ T1/2	Cylinder 2 ignition coil	3
		→ T1/3	Cylinder 3 ignition coil	3
		→ T1/4	Cylinder 4 ignition coil	3