Batteries - checking and correcting fluid level - AP54.10-P-5410MCC

MODEL 451.3 (except 451.334) 

MODEL 451.3 (except 451.380) 

MODEL 451.4 (except 451.480) 

Fig 1: Identifying Bracket, Retaining Clip, Nut And Plug With Battery

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing
	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
	Notes on battery		AH54.10-P-0001-01A
1	Remove footrest on the passenger-side	Left-hand drive vehicles	AR68.30-P-1340MCC
		Right-hand drive vehicles	AR68.30-P-1340MCE
2	Unscrew nut (3)
3	Unclip the retaining clip (2) on the bracket (1) and remove bracket (1)	On right-hand drive vehicles the bracket (1) is only raised until the stop plugs (4) are accessible.
	Checking
4	Remove stop plugs (4) on the battery (G1) and check fluid level in the battery (G1)	In each cell the fluid must reach the web let into the filler opening (arrow).
	Correct
5	Correct the battery acid level with distilled water	Refill distilled water up to the web (arrow).
6	Screw in plug (4)
	Install
7	Insert bracket (1) and clip in retaining clip (2) at the bracket (1)
8	Tighten nut (3)	Installation:  Replace self-locking nut (3).
9	Install footrest on the passenger-side	Left-hand drive vehicles	AR68.30-P-1340MCC
		Right-hand drive vehicles	AR68.30-P-1340MCE