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Home >> Mercedes Benz >> 2020 >> S450 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 222 Chassis (05 Of 10) >> Testing & Repair >> Remove/Install Battery Of 48 V On-Board Electrical System - AR54.10-P-0022LFM

Remove/Install Battery Of 48 V On-Board Electrical System - AR54.10-P-0022LFM

Model 222 

With Code B01 (48V technology) 

Shown With Code 308 (Refrigerator box) 

G15370401Courtesy of MERCEDES-BENZ USA
Fig 1: Battery Of 48 V On-Board Electrical System Components Location - Model 222 With Code B01 (Shown With Code 308)
G15370402Courtesy of MERCEDES-BENZ USA
G15370403Courtesy of MERCEDES-BENZ USA
DANGER Risk of fire  /risk of explosion due to short circuit and escaping oxyhydrogen gas. Risk of (burn) injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte/mist, short circuit and arcing. Risk of poisoning  caused by swallowing battery electrolyte or absorption of lead through the skin or body orifices. Risk of death  due to voltage U >= 30 V AC and U >= 60 V DC. No fires, sparks, open flames, or smoking.
Wear acid-resistant gloves, clothing, and glasses. Pour battery acid only into suitable and appropriately marked containers.
AS54.10-Z-0001-01A 
WARNING Risk of injury.  Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
Notice  General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment   AH00.00-Z-0300-01A
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
Notice  Notes on coolant Model 222 with engine 256
with code B01 (48V technology)
AH20.00-P-2080-01KOA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on battery   AH54.10-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
  Notes on HANDS-FREE ACCESS   AH80.61-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Commission 48 V on-board electrical system battery (G1/3). When replacing 48 V on-board electrical system battery (G1/3).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2 Remove partition trim in trunk.   AR68.30-P-4600LF
3 Print out analysis sheet.    
REFER TO FORMS Analysis sheet for 48 V lithium-ion battery, form Model 222.058/059/060/150/158/159/169
with code B01 (48V technology)
OF54.10-P-3000-15A
INSPECT Check     
4 Check for potential hazards of 48 V on-board electrical system battery (G1/3). When replacing 48 V on-board electrical system battery (G1/3).
IMPORTANT In the event of smoke generation or fire, notify the fire department.
IMPORTANT Using the 48 V lithium-ion battery analysis sheet form, check whether the 48 V on-board electrical system battery (G1/3) presents an acute hazard.
 
5 Check housing of 48 V on-board electrical system battery (G1/3) for mechanical damage   AR54.10-P-1140-06MEV 
    IMPORTANT Check the non-visible area on the housing after removal of the 48 V on-board electrical system battery (G1/3).
IMPORTANT Use the analysis sheet to check whether there is damage to the 48 V on-board electrical system battery (G1/3) causing electrolyte to leak out.
If there is an electrolyte leakage.

Notify MPC/general representative.
 
6 Disconnect the ground line for the on-board electrical system battery (G1). IMPORTANT The 48 V on-board electrical system is automatically disconnected from power supply at the latest 10 s after disconnecting the ground line from the 12 V on-board electrical system battery. AR54.10-P-0003LF 
7 Unscrew screws (1) and remove retaining frame (2). Model 222
with code 282 (Ski and snowboard bag)
with code B01 (48V technology)
Model 222
with code 308 (Refrigerated compartment in rear passenger compartment)
with code B01 (48V technology)
 
8 Release and detach degassing pipe (9).   AR09.41-P-1311-01AL
9 Release electrical wiring harnesses (10) from threaded pin (11) and place to one side.    
10 Remove screws (14). TORQUE SPECIFICATION Bolt, battery frame to body *BA54.10-P-1001-01J 
11 Pull battery frame (15) together with the 48 V on-board electrical system battery (G1/3) slightly toward rear.    
12 Release and disconnect electrical connectors (3).    
13 Open cap (4) and unscrew cable lug (5) underneath. TORQUE SPECIFICATION Nut, positive line/ground line to DC/DC converter control unit/on-board electrical system battery (48V) *BA54.10-P-1012-01J 
14 Remove nuts (6). INSTALLATION IMPORTANT Replace the nuts (6).
TORQUE SPECIFICATION Nut, positive line/ground line to DC/DC converter control unit/on-board electrical system battery (48V)
*BA54.10-P-1012-01J 
15 Remove electric lines (7).    
16 Clamp off coolant hoses (8) with the clamping device, release and detach. Model 222 with engine 256, 264
with code B01 (48V technology)
IMPORTANT Collect escaping coolant using suitable vessel.
AR20.20-P-7441-01RQ
    SPECIAL TOOL Clamp Fig 2
17 Remove nut (12). TORQUE SPECIFICATION Nut, tensioning strap to battery frame *BA54.10-P-1002-01J 
18 Place tensioning strap (13) to one side.    
19 Remove 48 V on-board electrical system battery (G1/3). IMPORTANT Collect escaping coolant using suitable vessel.  
20 Remove DC/DC converter control unit (N83/1) from 48 V on-board electrical system battery (G1/3). When replacing 48 V on-board electrical system battery (G1/3). AR54.10-P-1351LFM 
21 Install in the reverse order.    
22 Check coolant level and correct.    
REFER TO MAINTENANCE     AP20.30-P-2050HA
23 Connect diagnostic device and start bleeding routine of the coolant battery circuit in the ME-SFI [ME] control unit (N3/10).    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
BATTERY

Number Designation Model 222
BA54.10-P-1001-01J Bolt, battery frame to body Nm 23
BATTERY

Number Designation Model 222
BA54.10-P-1002-01J Nut, tensioning strap to battery frame Nm 23
BATTERY

Number Designation Model 222
BA54.10-P-1012-01J Nut, positive line/ground line to DC/DC converter control unit/on-board electrical system battery (48V) Nm 16
Fig 2: Identifying Clamp (000 589 54 37 00)
G07300883Courtesy of MERCEDES-BENZ USA