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Remove/Install Power Electronics - AR08.20-P-0011LW

Model 205.012/047/147/212/247 

MODIFICATION NOTES

12.05.2016 Tightening torque - added Screw/bolt/nut, power distributor to power electronics AR54.10-P-1400-01LW
12.09.2017 Nut, upper struts to firewall Model 205 BA62.30-P-1002-02K
Fig 1: Power Electronics Control Unit Components Location - Model 205.047
G13023043Courtesy of MERCEDES-BENZ USA
G13023044Courtesy of MERCEDES-BENZ USA
G13023045Courtesy of MERCEDES-BENZ USA
  Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. AS00.00-Z-0035-01A
WARNING Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning  from swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.		 AS20.00-Z-0001-01A
  General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system   AH00.00-Z-0300-01A
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on battery   AH54.10-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Perform enable for the high voltage on-board electrical system   AR54.10-P-1150LW
2 Disconnect ground line at the on-board electrical system battery   AR54.10-P-0003LW
3 Remove right engine compartment cover    
4 Drain off coolant   AR20.00-P-1142LW
5 Remove high-voltage distributor (1) and power electronics control unit (N129/1) and close off with a protective cover   AR54.10-P-1400-01LW
    TORQUE SPECIFICATION Screw/bolt/nut, power distributor to power electronics *BA08.20-P-1001-01G 
    TORQUE SPECIFICATION Nut, upper struts to firewall *BA62.30-P-1002-02K 
    TORQUE SPECIFICATION Screw/bolt, upper struts to suspension strut tower mounting bracket *BA62.30-P-1001-02K 
    SPECIAL TOOL Cover Fig 3
    SPECIAL TOOL Set of protective covers Fig 2
6 Remove coolant lines (2) from power electronics control unit (N129/1) and close off with grommets IMPORTANT Collect escaping coolant with rags.  
    SPECIAL TOOL Record plug Fig 4
7 Close off coolant connections on power electronics control unit (N129/1) with grommets IMPORTANT Collect escaping coolant with rags.  
    SPECIAL TOOL Record plug Fig 4
8 Disconnect electrical connection (6) on power electronics control unit (N129/1).    
9 Remove screw/bolt (7)    
10 Remove positive line (8) on the engine compartment prefuse box (F32/3) and place to one side TORQUE SPECIFICATION Nut, positive line to engine compartment prefuse box *BA54.15-P-1003-01K 
11 Remove positive line (9) from the engine compartment prefuse box (F32/3)/ TORQUE SPECIFICATION Nut, positive line to engine compartment prefuse box *BA54.15-P-1003-01K 
12 Expose positive line (9) along the body up to power electronics control unit (N129/1)    
13 Remove potential equalization electrical line (5) at the body TORQUE SPECIFICATION Nut, potential equalization line to body *BA08.20-P-1007-01G 
14 Unscrew screw/bolt (3) Model 205.012/047/147/212/247
TORQUE SPECIFICATION Screw/bolt, battery mounting rail to battery frame		 *BA54.10-P-1001-01A 
15 Remove mounting rail (4) from power electronics control unit (N129/1)    
16 Remove power electronics control unit (N129/1) IMPORTANT Helper required.  
17 Modify potential equalization electrical line (5) When replacing the power electronics control unit (N129/1).
TORQUE SPECIFICATION Bolt/nut, potential equalization line to power electronics		 *BA08.20-P-1002-01G 
18 Modify positive line (9) When replacing the power electronics control unit (N129/1).
TORQUE SPECIFICATION Nut, electrical line for circuit 30 to power electronics		 *BA08.20-P-1008-01G 
19 Modify coolant connection fitting (10) When replacing the power electronics control unit (N129/1).  
20 Install in the reverse order    
  Initial startup     
21 Connect diagnostic system When replacing the power electronics control unit (N129/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
22 In the electric motor control unit under "Adaptations" select the menu item "Commissioning" and put the power electronics control unit (N129/1) into operation When replacing the power electronics control unit (N129/1).  
23 Close off diagnostic system When replacing the power electronics control unit (N129/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
CONTROL UNITS

Number Designation Model 205.0/2 with code ME04 (Mild hybrid drive) Model 205.0/2 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
BA08.20-P-1001-01G Screw/bolt/nut, power distributor to power electronics M5 Nm 6 -
M8 Nm 6 -
CONTROL UNITS

Number Designation Model 205.0/1/2 with code ME06 (Hybrid drive 60 kW variant (incl. plugin))
BA08.20-P-1001-01G Screw/bolt/nut, power distributor to power electronics M5 Nm 6
M8 Nm 6
CONTROL UNITS

Number Designation Model 205.0/2 with code ME04 (Mild hybrid drive) Model 205.0/2 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
BA08.20-P-1002-01G Bolt/nut, potential equalization line to power electronics M8 Nm 16 16
CONTROL UNITS

Number Designation Model 205.0/1/2 with code ME06 (Hybrid drive 60 kW variant (incl. plugin))
BA08.20-P-1002-01G Bolt/nut, potential equalization line to power electronics M8 Nm 16
CONTROL UNITS

Number Designation Model 205.0/2 with code ME04 (Mild hybrid drive) Model 205.0/2 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
BA08.20-P-1007-01G Nut, potential equalization line to body Nm 16 16
CONTROL UNITS

Number Designation Model 205.0/1/2 with code ME06 (Hybrid drive 60 kW variant (incl. plugin))
BA08.20-P-1007-01G Nut, potential equalization line to body Nm 16
CONTROL UNITS

Number Designation Model 205.0/2 with code ME04 (Mild hybrid drive) Model 205.0/2 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
BA08.20-P-1008-01G Nut, electrical line for circuit 30 to power electronics M8 Nm 16 16
CONTROL UNITS

Number Designation Model 205.0/1/2 with code ME06 (Hybrid drive 60 kW variant (incl. plugin))
BA08.20-P-1008-01G Nut, electrical line for circuit 30 to power electronics M8 Nm 16
BATTERY

Number Designation Model 205
BA54.10-P-1001-01A Screw/bolt, battery mounting rail to battery frame Nm 23
FUSE AND RELAY BOX

Number Designation Model 205
BA54.15-P-1003-01K Nut, positive line to engine compartment prefuse box M6 Nm 8
M8 Nm 16
FROND END WITH FRONT REINFORCEMENT

Number Designation Model 205
BA62.30-P-1001-02K Screw/bolt, upper struts to suspension strut tower mounting bracket Stage 1   Nm 50
Stage 2   Nm -
Stage 3 Loosen ∠° -
Stage 4   Nm -
FROND END WITH FRONT REINFORCEMENT

Number Designation Model 205
BA62.30-P-1002-02K Nut, upper struts to firewall Nm 35
Fig 2: Identifying Set Of Protective Covers (001 589 03 91 00)
G09973600Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Cover (000 589 02 98 00)
G09974827Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Record Plug (129 589 00 91 00)
G07473018Courtesy of MERCEDES-BENZ USA
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