Check condition of battery - AR54.10-P-1129V

MODEL 171

Fig 1: Identifying Quick-Release Fittings And Air Duct

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

25.4.07

Check fluid level with service fill level indicator added

Step 4.2

	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.	-
	Notes on battery		-
1	Open engine hood and move to vertical position		AR88.40-P-1000V
2	Open quick-release couplings (3) and remove air duct (4)
	Checking
3	Visual inspection for external leaks	In the event of leakage: Replace battery, see: ↓
		Remove/install battery	AR54.10-P-0005V
		Dispose of battery	OS54.10-P-0001-01Z
4.1	Check fluid level in battery, replenish with distilled water if necessary	Without service fill level indicator.
4.2	Check fluid level of battery	With service fill level indicator. Fluid check via service fill level indicator, acid level is too low if colored white: Replace battery, see: ↓
		Remove/install battery	AR54.10-P-0005V
		Dispose of battery	OS54.10-P-0001-01Z
5	Check battery		AR54.10-P-1129-01A
		Cold cranking amps as per EN Midtronics battery tester with test clamps	*BE54.10-P-1002-01A
6	Reduce increased voltage after charging process	On a battery that is disconnected from the onboard electrical system and with the message "Surface voltage" in the display of the Midtronics battery tester. Midtronics battery tester Volt/amp tester -	-
		After reducing increased voltage, test battery again.
7	Charge battery	With the test code "Charge and check" on the Midtronics battery tester. After charging, test battery again.	AR54.10-P-1130V
	Install
8	Install air duct (4)
9	Close engine hood		AR88.40-P-1000V

TEST AND ADJUSTMENT VALUES FOR THE BATTERY

Number	Designation			12 Ah	30 Ah	35 Ah	46 Ah
BE54.10-P-1002-01A	Cold test current	as per EN	A	170	540	520	420

TEST AND ADJUSTMENT VALUES FOR THE BATTERY

Number	Designation			60 Ah VRLA	60 Ah VRLA	62 Ah
BE54.10-P-1002-01A	Cold test current	as per EN	A	680	510	480

TEST AND ADJUSTMENT VALUES FOR THE BATTERY

Number	Designation			70 Ah VRLA	74 Ah	80 Ah VRLA	84 Ah
BE54.10-P-1002-01A	Cold test current	as per EN	A	760	680	800	700

TEST AND ADJUSTMENT VALUES FOR THE BATTERY

Number	Designation			90 Ah VRLA	95 Ah VRLA	100 Ah
BE54.10-P-1002-01A	Cold test current	as per EN	A	950	850	760