Remove/Install Electric Drive Control Unit - AR08.20-P-0020SRE

ENGINE 780.997 in MODEL 453.091/391/491 

Shown on model 453.091 

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Perform commissioning of the EDCU (N127)	When replacing electric drive control unit (N127).	AD00.00-P-2000-06SR
2	Perform power disable of high voltage on-board electrical system	Perform initial startup of high-voltage on-board electrical system.	AR54.10-P-1160SRE
3	Remove right side paneling in trunk	Engine 780.997 in model 453.0	AR68.30-P-4800SR
		Engine 780.997 in model 453.4	AR68.30-P-4800SRC
		Engine 780.997 in model 453.3	AR68.30-P-4800SRA
		Model 453.0/3 with engine 780.997 Do not remove seat belt end fitting.
4	Unlock and disconnect electrical connections (1, 2, 3) on EDCU (N127)
5	Remove screws/bolts (4) and remove EDCU (N127)
6	Install in the reverse order