Arrangement and assignment of ground terminals, engine compartment (right) - GF00.19-U-2000-02KA

MODEL 230 

Fig 1: Identifying Arrangement And Assignment Of Ground Terminals, Engine Compartment (Right)

Courtesy of MERCEDES-BENZ USA

Ground point	Designation		Component	Designation	Connector Pin
W3/1	Ground (right front wheel well)
		AMG	→ A27/1	Engine oil additional fan unit	2.1
			→ A89	DTR control unit	2.6
			→ B31/1	AAC [KLA] multifunction sensor	1
			→ B32/2	AAC [KLA] sun sensor (4 in total)	1
			→ E2	Right front headlamp unit	1.4 1.6
			→ E5/2	Right fog lamp	1
			→ E6/2	Right front side marker lamp	1
			→ H2	Left fanfare horn	1
			→ H2/1	Right fanfare horn	1
		AMG	→ K25	Engine oil additional fan relay	3
			→ M5/2	HCS pump	2
		M113.992	→ M33	AIR pump	2
		M113.992	→ M44	Charge air cooler circulation pump	2
			→ R2/2 Left	heated windshield washer nozzle connector	1
			→ R2/3	Right heated windshield washer nozzle connector	1
			→ R2/10	Wiper park heater	1
			→ R2/11	Washer nozzle hose heater	1
			→ S10/2	Right front brake pad contact sensor
			→ S62	ATA [EDW] left engine hood switch	2
W10/1	Ground (electronics)
		M275	→ W15/3	Ground (electronics)
W10/3	Ground (starter battery partition wall)		→ G1/4	Starter battery	3
			→ N51/2 ABC	control module	2.21
			→ S11	Brake fluid indicator switch	1
			→ H3	Alarm signal horn	2
		up to 05/02	→ S10/1	Left front brake pad contact sensor
W11/2	Ground (engine - right side)
		M275	→ W15/3	Ground (electronics)
W11w1	Ground (engine - connection point for ground wires)		→ C4/2	Radio interference suppression capacitor 2	1
			→ T1/5	Cylinder 5 ignition coil	3
			→ T1/6	Cylinder 6 ignition coil	3
			→ T1/7	Cylinder 7 ignition coil	3
			→ T1/8	Cylinder 8 ignition coil	3
W14/3	Ground (SBC - right)		→ A7/3	SBC hydraulic unit	37 44
W15/3	Ground (electronics)		→ C4	Radio interference suppression capacitor	1
			→ W10/1	Ground (electronics)
			→ W11/2	Ground (engine - right side)
			→ W11/3	Ground (engine - left side)