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Home >> Mercedes Benz >> 2012 >> CL65 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System -- Testing & Repair -- Cl65 AMG (216.379) >> Testing & Repair >> Check condition of additional battery - AR54.10-P-1128SX

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

MODEL 216, 221 with CODE (B03) ECO start/stop function 

Fig 1: Checking Condition Of Additional Battery (Shown On Model 216)
G07516764Courtesy of MERCEDES-BENZ USA

Shown on model 216 

REMOVING Removing     
DANGER 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 Notes on battery   AH54.10-P-0001-01A
IMPORTANT Notes on AGM battery   AH54.10-P-0002-01A
1 Remove center paneling (1) in trunk   AR68.30-P-4600SX
NOTES Checking     
2 Visually inspect additional battery for ECO start/stop function (G1/13) for signs of external leaks IMPORTANT If leaks found, replace additional battery for ECO start/stop function (G1/13). See: ↓
Remove/install additional battery for ECO start/stop function (G1/13)
AR54.10-P-0007SXS 
REFER TO FORMS   Dispose of on-board electrical system battery OS54.10-P-0001-01Z
3 Charge additional battery for ECO start/stop function (G1/13) AR54.10-P-1129-01A   
  Cold test current
Battery tester gotis://E_15/54_02.0 
  *BE54.10-P-1002-01A 
4 Reduce increased voltage after charging process For an additional battery for ECO start/stop function (G1/13), that has been detached from the on-board electrical system, and if the "Surface voltage" message is shown on the Midtronics battery test/test equipment display.
Battery tester gotis://E_15/54_02.0 
IMPORTANT If the voltage increases after removal, check the additional battery for the ECO start/stop function (G1/13) again.
AR54.10-P-1129-03A 
5 Charge additional battery for ECO start/stop function (G1/13) With the test code "Charge and check" on the Midtronics battery tester.
IMPORTANT After charging, check additional battery for the ECO start/stop function (G1/13) again.
AR54.10-P-1130SY 
INSTALLING Install     
6 Install center paneling (1) into trunk   AR68.30-P-4600SX
TEST AND ADJUSTMENT VALUES FOR THE BATTERY

Number Designation   12 AH
BE54.10-P-1002-01A Cold test current as per EN A 170