Disconnect/connect battery ground line - AR54.10-P-0003MCC

MODEL 451.3 /4 

Fig 1: Identifying Ground Cable And Battery

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

MODIFICATION NOTES

10.6.10	Check condition of battery and enable high voltage system added	Steps 1 and 2
22.9.10	Information on required radio code on vehicles with code (527) High-Line radio, added
13.1.11	Adaptation of audio settings added	Step 9

	Remove/install
	Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries	No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers.	AS54.10-Z-0001-01A
	Risk of death  when touching components on vehicles with high-voltage system	Do not touch components and open lines of high-voltage system. Persons with electronic implants (e.g. cardiac pacemakers) must never  work on high-voltage systems.	AS54.00-Z-0001-02MEV
	Note on high-voltage battery	Model 451.391/491	AH54.10-P-0006-01MEV
	Note on high-voltage system	Model 451.391/491	AH54.00-P-0011-01MEV
	Notes on battery		AH54.10-P-0001-01A
	Notes on AGM battery	Model 451.334/380/480	AH54.10-P-0002-01MCC
	On vehicles with code (527) High-Line radio, before the ground line (1) is disconnected, it must be ensured that the radio code is available to allow the radio to be put into operation at a later stage.
1	Check condition of battery (G1), if necessary replace battery (G1)	Only with model 451.391/491 if during the further course of work, work is to be conducted on the high voltage vehicle electric system. The high voltage system cannot be enabled if the battery (G1) is defective: Before replacing the battery (G1) on model 451.391/491 no further work may be performed on the high-voltage vehicle electrical system.	AR54.10-P-1129MCC
2	Carry out disconnection of high-voltage system	Only with model 451.391/491 if during the further course of work, work is to be conducted on the high voltage vehicle electric system.	AR54.10-P-1160MEV
3	Connect STAR DIAGNOSIS and read out fault memory	Installation:  If necessary, delete fault memory.	AD00.00-P-2000-04MCC
4	Remove foot support on passenger side	Left-hand drive vehicles	AR68.30-P-1340MCC
		Right-hand drive vehicles	AR68.30-P-1340MCE
5	Disconnect ground line (1) from the negative terminal of the battery (G1)
6	Install in the reverse order
7	Set time in the instrument cluster and on the additional instrument
8	Enter radio code	On vehicles with code (527) High-Line radio
9	Adapt audio settings	On vehicles with code (527) High-Line radio
	Notes on audio settings		AH82.60-P-0002-01MCC