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Home >> Mercedes Benz >> 2013 >> C250 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instructions -- 204 C Class - 1 Of 6 >> Testing & Repair >> Check condition of additional battery - AR54.10-P-1128CW

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

Model 204.0/2/3 with code B03 (ECO start/stop function) 

Shown on model 204.0 

Fig 1: Checking Battery Condition - Shown On Model 204.0
G10107283Courtesy of MERCEDES-BENZ USA
REMOVING Remove     
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
1.1 Open luggage compartment floor cover (1) Model 204.0/3
with code B03 (ECO start/stop function)
 
1.2 Remove rear load compartment floor and intermediate bottom Model 204.2
with code B03 (ECO start/stop function)
 
2.1 Remove expansion rivets (3) and remove additional battery cover (2) Model 204.0/3
with code B03 (ECO start/stop function)
 
SPECIAL TOOL Clip remover Figure
2.2 Loosen spare wheel well trim until ECO start/stop function additional battery (G1/13) is accessible Model 204.2
with code B03 (ECO start/stop function)
 
INSPECT Check     
3 Visually inspect additional battery for ECO start/stop function (G1/13) for signs of external leaks In event of leakage to additional battery for ECO start/stop function (G1/13).

Replace additional battery for ECO start/stop function (G1/13)
 
AR54.10-P-0007CW 
4 Check additional battery for ECO start/stop function (G1/13)   AR54.10-P-1129-01A
REFER TO SPECIAL TOOLS 000 588 02 19 00 Battery tester   WS54.00-N-3006B
    Battery capacity 12 Ah *BE54.10-P-1001-01A 
5 Charge and check additional battery for ECO start/stop function (G1/13) When "Charge and check" is shown on the Midtronics battery tester display.
IMPORTANT Charge additional battery for ECO start/stop function (G1/13) directly at the battery terminals and check again after charging.
 
INSTALLING Install     
6.1 Install covering for additional battery (2) Model 204.0/3
with code B03 (ECO start/stop function)
 
6.2 Install spare wheel well panel Model 204.2
with code B03 (ECO start/stop function)
 
7.1 Close luggage compartment floor cover (1) Model 204.0/3
with code B03 (ECO start/stop function)
 
7.2 Remove intermediate bottom and cargo area floor at rear Model 204.2
with code B03 (ECO start/stop function)
 
TEST AND ADJUSTMENT VALUES FOR BATTERY

Number Designation Model all
BE54.10-P-1001-01A Battery capacity 12 Ah Cold cranking amps As per EN A 170
Fig 2: Identifying Clip Remover (452 589 01 63 00)
G07304504Courtesy of MERCEDES-BENZ USA