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Home >> Mercedes Benz >> 2015 >> C300 Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electrical System, Equipment & Instruments - 205 Chassis (4D Sedan) - 2 Of 4 >> Testing & Repair >> Check condition of battery - AR54.10-P-1129LW

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

Model 205 except code P25 (BlueEFFICIENCY Edition) except code U98 (LITHIUM-IONEN-STARTERBATTERIE (LISB)) 

Fig 1: Identifying On-Board Electrical System Battery And Cover
G10133760Courtesy 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
REMOVING Remove     
1 Remove cover (1)    
2 Perform visual inspection for external leakages In the event of leaks:

Replace on-board electrical system battery (G1).
 
Model 205 (except 205.08/28/38)
except code ME04 (Mild hybrid drive)
except code ME06 (Hybrid drive 50-KW variant (incl. plugin))
except code P25 (BlueEFFICIENCY Edition)
except code U98 (LITHIUM-IONEN-STARTERBATTERIE (LISB))
AR54.10-P-0005LW 
3 Check on-board electrical system battery (G1)   AR54.10-P-1129-01A
REFER TO SPECIAL TOOLS 000 588 02 19 00 Battery tester   WS54.00-N-3006B
    Battery capacity 60 Ah VRLA *BE54.10-P-1006-01A 
    Battery capacity 70 Ah VRLA *BE54.10-P-1010-01A 
    Battery capacity 80 Ah VRLA *BE54.10-P-1012-01A 
    Battery capacity 95 Ah VRLA *BE54.10-P-1015-01A 
4 Reduce increased voltage after charging process For an on-board electrical system battery (G1) that is disconnected from the on-board electrical system and if the message "Surface voltage detected" is in the display of the Midtronics battery tester.  
      AR54.10-P-1129-03A
REFER TO SPECIAL TOOLS 000 588 03 19 00 Load tester   WS15.00-P-0027B
    IMPORTANT Check the on-board electrical system battery (G1) again after the increased voltage is reduced.  
5 Charge on-board electrical system battery (G1) With the test code "Charge and check" on the Midtronics battery tester.  
      AR54.10-P-1130LW 
    IMPORTANT Check the on-board electrical system battery (G1) again after charging.  
INSTALLING Install     
6 Fit on cover (1)    
TEST AND ADJUSTMENT VALUES FOR BATTERY

Number Designation Model all
BE54.10-P-1006-01A Battery capacity VRLA 60 Ah Cold cranking amps As per EN A 680
TEST AND ADJUSTMENT VALUES FOR BATTERY

Number Designation Model all
BE54.10-P-1010-01A Battery capacity VRLA 70 Ah Cold cranking amps As per EN A 760
TEST AND ADJUSTMENT VALUES FOR BATTERY

Number Designation Model all
BE54.10-P-1012-01A Battery capacity VRLA 80 Ah Cold cranking amps As per EN A 800
TEST AND ADJUSTMENT VALUES FOR BATTERY

Number Designation Model all
BE54.10-P-1015-01A Battery capacity VRLA 95 Ah Cold cranking amps As per EN A 850