Remove/install power electronics - AR08.20-P-0011LF

MODEL 222.004/057/104/157/163 

Show on model 222.157 

Fig 1: Power Electronics Remove/Install Components - Shown On Model 222.157 (1 Of 2)

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Fig 2: Power Electronics Remove/Install Components - Shown On Model 222.157 (2 Of 2)

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Shown: model 222.163 

Fig 3: Power Electronics Remove/Install Components - Shown On Model 222.163

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	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
	Risk of injury  to skin and eyes suffering scalding from contact with hot coolant spray. 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
	Note on high-voltage on-board electrical system		AH54.00-P-0010-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Evaluation of high-voltage components		AH54.00-P-6500-01SXH
	Remove/install
1	Perform enable for the high voltage on-board electrical system		AR54.10-P-1150LF
2.1	Detach ground line for on-board electrical system battery on left rear longitudinal member	Model 222.004/057/104/157	AR54.10-P-0003LF
2.2	Detach ground line from on-board electrical system battery	Model 222.163	AR54.10-P-0003LF
3	Remove front and rear rights cover in the engine compartment
4	Detach seal (1) and remove right major assembly dividing wall (2)
5	Windshield washer system junction box with bracket from right reinforcement (3)	Model 222.004/057/104/157/163 with code 874 (MAGIC VISION CONTROL, heated)	AR82.30-P-6100LF
6	Remove right reinforcement (3)	Bolt, reinforcement to firewall/longitudinal member/reinforcement, center	*BA62.25-P-1001-01B
7	Loosen engine compartment prefuse box (F32/3) and lay to the front		AR54.15-P-1330LF
8	Detach electrical lines (27) from high-voltage distributor (20) and set aside	Model 222.163 with engine 276 Model 222.163 It is essential to observe the work instructions and notes listed in the linked description! Damage can occur at the connector for the high voltage on-board electrical system otherwise and lead to contact problems and damage on the high voltage on-board electrical system! Cover connection for electrical line (27) on high-voltage distributor (20). Damage can occur to the shielding otherwise.	AR08.00-P-0101-01LFH
		Model 222.163 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) Safety screw, release lever for high-voltage connection	*BA08.20-P-1009-01E
		Model 222.004/057/104/157 Bolt, high-voltage connector to high-voltage distributor	*BA54.10-P-1001-03C
9.1	Detach electrical line for terminal 30 (24) from power electronics control unit (N129/1)	Model 222.004/057/104/157 Ensure that the contact surfaces are absolutely clean. Otherwise the high voltage on-board electrical system may suffer contact problems and be damaged. Ensure correct seating and scuff-free routing of the electrical line for terminal 30 (24).
		Nut, electrical line for circuit 30 to power electronics	*BA08.20-P-1005-01E
9.2	Detach electrical line (30) from high-voltage distributor (20) and set aside	Model 222.163 Cover connection for electrical line (30) on high-voltage distributor (20). Damage can otherwise occur.
10	Release and disconnect electrical connection (25) on power electronics control unit (N129/1)
11	Remove electrical line for potential equalization (26) on suspension strut tower	Ensure scrupulous cleanliness. Otherwise the high voltage on-board electrical system may be damaged. Ensure correct seating and scuff-free routing of the electrical line for potential equalization (26). Nut, potential equalization to body	*BA08.20-P-1007-01E
12	Detach bracket (4) from electrical line (28) and 3-phase high-voltage lines (29) on the rear major assembly dividing wall
13	Detach bracket (4a) from electrical line (28) and 3-phase high-voltage lines (29) on the rear major assembly dividing wall	Model 222.163
14	Drain coolant at radiator		AR20.00-P-1142LF
	Notes on coolant		AH20.00-N-2080-01A
15	Unclamp coolant hose (5a) and detach at power electronics control unit (N129/1)	Collect escaping coolant with rags. Hose clamp pliers	Fig 8
		Clamp	Fig 6
16	Close off connection fittings on power electronics control unit (N129/1) using suitable grommets	Record plug	Fig 7
17.1	Unclamp coolant hose (5b) and detach at coolant line (5c)	Model 222.004/057/104/157 Collect escaping coolant with rags. Clamp	Fig 6
		Record plug	Fig 7
		Hose clamp pliers	Fig 8
17.2	Unclamp coolant hose (5a) and detach at power electronics control unit (N129/1)	Model 222.163 Collect escaping coolant with rags.
		Hose clamp pliers	Fig 8
		Clamp	Fig 6
18.1	Close off coolant hose (5b) and coolant line (5c) using suitable grommets	Model 222.004/057/104/157 Record plug	Fig 7
18.2	Close off connection fittings on power electronics control unit (N129/1) using suitable grommets	Model 222.163 Record plug	Fig 7
19	Remove screw/bolts (6)	Bolt, power electronics to bracket	*BA08.20-P-1001-01E
20	Pad upper engine cover with clean rags
21	Remove power electronics control unit (N129/1) with high-voltage distributor (20), electrical line (28) and 3-phase high-voltage lines (29) upwards and lay on the upper engine cover	Do not damage electrical line (28), 3-phase high-voltage lines (29) and high-voltage connection on high-voltage distributor (20). Otherwise the high voltage on-board electrical system may be damaged.
22	Remove high-voltage distributor (20) on power electronics control unit (N129/1)	Model 222.163	AR54.10-P-1400-01LFH
		Model 222.004/057/104/157	AR54.10-P-1400-01LF
		It is essential to observe the work instructions and notes listed in the linked description! The high-voltage distributor (20) and power electronics control unit (N129/1) can be damaged otherwise and contact problems and damage can occur on the high-voltage on-board electrical system!	*BA08.20-P-1004-01E
		Model 222.004/057/104/157 with code ME04 (Mild hybrid drive) Model 222.163 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) Bolt, power distributor to power electronics Set of protective covers	Fig 4
		Long wedge	Fig 5
23	Remove electrical line potential equalization (26) at new power electronics control unit (N129/1)	When replacing the power electronics control unit (N129/1) Bolt/nut, potential equalization to power electronics	*BA08.20-P-1006-01E
24	Mount bracket (9) on new power electronics control unit (N129/1)	When replacing the power electronics control unit (N129/1)
25	Mount coolant hose (5b) on new power electronics control unit (N129/1)	Model 222.004/057/104/157 When replacing the power electronics control unit (N129/1)
26	Install in the reverse order
27	Commission power electronics control unit (N129/1) with diagnostic system	When replacing the power electronics control unit (N129/1)
		The work procedure for the commissioning can be found in the following control unit: Electric motor control unit In the initial "Control units" menu, select the menu item "Initial startup" under "Adaptations" and perform the complete procedure.	AD00.00-P-2000-04B
28	Detach diagnostic system	When replacing the power electronics control unit (N129/1)
	Check
29	Check cooling system for leaktightness		AR20.00-P-1010LF
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
30	Perform an engine test run and check cooling system for proper operation

Fig 4: Identifying Set Of Protective Covers (001 589 03 91 00)

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Fig 5: Identifying Long Wedge (115 589 03 59 00)

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Fig 6: Identifying Clamp (000 589 40 37 00)

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Fig 7: Identifying Record Plug (129 589 00 91 00)

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Fig 8: Identifying Hose Clamp Pliers (003 589 03 37 00)

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