Central gateway control unit (ZGW), remove and install - AR54.21-P-0817V

MODEL 171.4 

Fig 1: Identifying Central Gateway Control Unit Components

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

5.7.06

"Disconnect/connect battery ground line" removed

	Remove/install
1.1	Store basic data from central gateway control unit (N93) temporarily in STAR DIAGNOSIS.	When installing new central gateway control unit (N93). Install:  Transfer the temporarily stored basic data to the new central gateway control unit (N93).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WE58.40-Z-1013-06A
2	Adjust the driver seat backwards into its final position	See Operator's Manual
3	Remove bolts (1)
4	Fold down cover (2)
5	Separate electrical plug connection (3)
6	Unlock hook (4) with suitable screwdriver and remove central gateway control unit (N93) from cover (2)
7	Install in the reverse sequence

WORKSHOP EQUIPMENT/MB TESTERS (SEE WORKSHOP EQUIPMENT MANUAL)

WE58.40-Z-1013-06A

STAR DIAGNOSIS Compact diagnosis system for passenger cars, order number 6511 1801 00