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Home >> Mercedes Benz >> 2007 >> R320 >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electrical System, Equipment & Instructions - 251 Chassis - 1 Of 4 >> Testing & Repair >> Check condition of battery - AR54.10-P-1129RT

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

MODEL 251 

Fig 1: Identifying Battery Cover, Floor Mat And Positive Battery Terminal
G10121187Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

24.2.06 Cold test current 12 AH *BE54.10-P-1002-01A 
REMOVING Removing     
IMPORTANT Notes on AGM battery   AH54.10-P-0002-01A
1 Move front passenger seat all the way up and back    
2 Unclip trim (3) to the front and remove    
3 Fold floor mat (4) to the front and lift floor covering slightly (5) to get access to the positive terminal of the battery (6) as well as to the battery's negative terminal (arrow A)    
INSPECT Checking     
4 Visual inspection for external leaks IMPORTANT In the event of leakage: Replace battery, see: ↓  
  Remove/install battery AR54.10-P-0005RT 
REFER TO FORMS Dispose of battery OS54.10-P-0001-01Z
DANGER Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries  caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards.
Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.
Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.
AS54.10-Z-0001-01A
5 Check battery   AR54.10-P-1129-01A
Cold cranking amps as per EN  
Battery capacity 12 Ah *BE54.10-P-1001-01A 
Battery capacity 30 Ah *BE54.10-P-1002-01A 
Battery capacity 35 Ah *BE54.10-P-1003-01A 
Battery capacity 46 Ah *BE54.10-P-1005-01A 
Battery capacity 60 Ah VRLA *BE54.10-P-1006-01A 
Battery capacity 60 Ah *BE54.10-P-1007-01A 
Battery capacity 62 Ah *BE54.10-P-1009-01A 
Battery capacity 70 Ah VRLA *BE54.10-P-1010-01A 
Battery capacity 74 Ah *BE54.10-P-1011-01A 
Battery capacity 80 Ah VRLA *BE54.10-P-1012-01A 
Battery capacity 84 Ah *BE54.10-P-1013-01A 
Battery capacity 90 Ah VRLA *BE54.10-P-1014-01A 
Battery capacity 95 Ah VRLA *BE54.10-P-1015-01A 
Battery capacity 100 Ah
Midtronics MCR 717 battery tester and analyzer
Red terminal for Midtronics battery tester and analyzer
MCR 717
Black terminal for Midtronics battery tester and analyzer MCR 717
*BE54.10-P-1016-01A 
DANGER Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries  caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards.
Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.
Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.
AS54.10-Z-0001-01A
6.1 Reduce increased voltage after charging process On a battery, that is disconnected from the on-board electrical system and with the message "Surface voltage" in the display of the Midtronics battery tester and analyzer MCR 717
Midtronics MCR 717 battery tester and analyzer
Volt ampere tester ETT 011.00
IMPORTANT After reducing increased voltage, test battery again.
AR54.10-P-1129-03A
7.1 Charge battery If test code "Charge and test" is displayed on Midtronics battery tester and analyzer MCR 717
IMPORTANT After charging, test battery again.
AR54.10-P-1130RT 
INSTALLING Install     
8 Position floor covering (5) and floor mat (4)    
9 Install paneling (3)    
10 Move front passenger seat to default position    
TEST AND ADJUSTMENT VALUES FOR BATTERY

Number Designation All models
BE54.10-P-1001-01A Battery capacity 12 Ah Cold test current as per EN A 170
BE54.10-P-1002-01A Battery capacity 30 Ah Battery test at 20 °C Acid density kg/dm3 ≥1, 24
Maximum permissible difference between individual battery cells kg/dm3 0, 04
Load current A 90
Load time s 10
Voltage VV ≈10
Cold test current as per EN A 540
BE54.10-P-1003-01A Battery capacity 35 Ah Battery test at 20 °C Acid density kg/dm3 ≥1, 24
Maximum permissible difference between individual battery cells kg/dm3 0, 04
Load current A 100
Load time s 10
Voltage VV ≈10
Cold test current as per EN A 520
BE54.10-P-1005-01A Battery capacity 46 Ah Battery test at 20 °C Acid density kg/dm3 ≥1, 24
Maximum permissible difference between individual battery cells kg/dm3 0, 04
Load current A 140
Load time s 10
Voltage VV ≈10
Cold test current as per EN A 420
BE54.10-P-1006-01A Battery capacity 60 Ah VRLA Cold test current as per EN A 680
BE54.10-P-1007-01A Battery capacity 60 Ah Cold test current as per EN A 510
BE54.10-P-1009-01A Battery capacity 62 Ah Battery test at 20 °C Acid density kg/dm3 ≥1, 24
Maximum permissible difference between individual battery cells kg/dm3 0, 04
Load current A 190
Load time s 10
Voltage VV ≈10
Cold test current as per EN A 480
BE54.10-P-1010-01A Battery capacity 70 Ah VRLA Cold test current as per EN A 760
BE54.10-P-1011-01A Battery capacity 74 Ah Battery test at 20 °C Acid density kg/dm3 ≥1, 24
Maximum permissible difference between individual battery cells kg/dm3 0, 04
Load current A 265
Load time s 10
Voltage VV ≈10
Cold test current as per EN A 680
BE54.10-P-1012-01A Battery capacity 80 Ah VRLA Cold test current as per EN A 800
BE54.10-P-1013-01A Battery capacity 84 Ah Cold test current as per EN A 700
BE54.10-P-1014-01A Battery capacity 90 Ah VRLA Cold test current as per EN A 950
BE54.10-P-1015-01A Battery capacity 95 Ah VRLA Cold test current as per EN A 850
BE54.10-P-1016-01A Battery capacity 100 Ah Battery test at 20 °C Acid density kg/dm3 1, 24
Maximum permissible difference between individual battery cells kg/dm3 0, 04
Load current A 300
Load time s 10
Voltage VV ≈10
Cold test current as per EN A 760