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Home >> Mercedes Benz >> 2015 >> B250 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instructions - 246 Chassis >> Testing & Repair >> Check condition of additional battery >> Check condition of additional battery - AR54.10-P-1128NKM

Check condition of additional battery - AR54.10-P-1128NKM

MODEL 117, 156, 176, 242, 246 as of model year 2016 with CODE B03 (ECO start/stop function) 

Fig 1: Identifying Additional Battery
G10251194Courtesy of MERCEDES-BENZ USA
DANGER Risk of explosion  from explosive gas. Risk of poisoning and caustic burns  from swallowing battery electrolyte. Risk of injury  through burns to skin and eyes from battery acid or when handling damaged lead-acid batteries No fires, 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 Notes on battery   AH54.10-P-0001-01A
IMPORTANT Notes on AGM battery   AH54.10-P-0002-01A
REMOVING Remove     
1 Remove additional battery (1)   AR54.10-P-0007NKM 
INSPECT Check     
2 Visually inspect additional battery (1) for external leaks In the event of leakage ↓
Replace additional battery (1)
 
3 Check additional battery (1)    
REFER TO SPECIAL TOOLS 000 588 02 19 00 Battery tester   WS54.00-N-3006B 
If "Charge and check" is shown on display of battery tester ↓
Charge additional battery (1)
 
4 Charge additional battery (1) directly at battery terminals If "Charge and check" is shown on display of battery tester.  
REFER TO SPECIAL TOOLS 000 588 00 81 00 Charger   WS54.00-P-0037B 
5 Check battery again    
REFER TO SPECIAL TOOLS 000 588 02 19 00 Battery tester   WS54.00-N-3006B 
If "Charge and check" is shown on display of battery tester ↓
Replace additional battery (1)
 
INSTALLING Install     
6 Install additional battery (1)   AR54.10-P-0007NKM