Remove/Install Power Electronics - AR08.20-P-0011GQA
ENGINE 276 in MODEL 166.063
| Risk of death when touching components on vehicles with high-voltage on-board electrical system | Do not touch damaged or defective 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-1150GQA | |
| 2 | Detach ground line from on-board electrical system battery | Engine 276.8 in model 166.063 | AR54.10-P-0003GZ |
| 3 | Remove front right side underfloor paneling | AR61.30-P-1001GQ | |
| 4 | Remove right heat shield over power electronics (1) in transmission tunnel | ||
| 5 | Drain coolant from low-temperature circuit | AR09.41-P-6834MLJ | |
| 6 | Disconnect electrical connector (8) from power electronics (1) | AR08.00-P-0101-01LFH | |
| *BA54.10-P-1001-03E | |||
| 7 | Disconnect electrical connector (12) from power electronics (1) | ||
| 8 | Disconnect electrical connector (13) from power electronics (1) | ||
| 9 | Use protective covers to protect open electrical connectors (12, 13, 8) against moisture | Fig 3 | |
| Fig 1 | |||
| 10 | Remove screw/bolts (9) and remove high-voltage distributor (2) from power electronics (1) | AR54.10-P-1400GQA | |
| *BA54.10-P-1003-03E | |||
| 11 | Clamp off coolant hoses (3) near to the power electronics (1) | The coolant hoses (3) must be clamped off as near as possible to the power electronics (1). In order to keep the escaping coolant as low as possible. |
|
| 12 | Loosen clamps (4) and remove coolant hoses (3) from power electronics (1) | ||
| 13 | Seal coolant connections on power electronics (1) with stop plugs | Fig 4 | |
| 14 | Disconnect electrical connection (10) from power electronics (1) | ||
| 15 | Close off electrical connection (10) with protective cover at the power electronics (1) | Set of protective covers |
Fig 2 |
| 16 | Remove vent line (5) from power electronics (1) | ||
| 17 | Remove screw/bolt (7) and unscrew potential equalization electrical line (11) from power electronics (1) | *BA08.20-P-1004-01H | |
| 18 | Close off open plug contacts between the power electronics (1) and high-voltage distributor with protective covers | Protect power electronics (1) against moisture and dirt particles. Otherwise the high voltage on-board electrical system may suffer contact problems and be damaged. |
Fig 2 |
| 19 | Remove plastic clip (14) from power electronics bracket (1) to body | ||
| 20 | Remove screw/bolts (6) | Universal telescopic lifter |
*BA08.20-P-1001-01H |
| *BA08.20-P-1002-01H | |||
| 21 | Remove power electronics (1) | Water entry or isolation faults can occur otherwise. |
|
| 22 | Reuse bracket (15, 16, 17) for power electronics (1) | When replacing the power electronics (1). |
*BA08.20-P-1003-01H |
| 23 | Install in the reverse order | ||
| Initial startup | |||
| 24 | Connect diagnostic system | When replacing the power electronics (1). | |
| AD00.00-P-2000-04A | |||
| 25 | Commission power electronics control unit (1) with diagnostic system | When replacing the power electronics (1). | |
Electric motor control unit In the control units initial menu, select the menu item "Initial startup" under "Adaptations" and process the complete procedure. |
AD00.00-P-2000-04A | ||
| 26 | Close off diagnostic system | When replacing the power electronics (1). | |
| AD00.00-P-2000-04A |
CONTROL UNITS
| Number | Designation | Model 166 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) | ||
|---|---|---|---|---|
| BA08.20-P-1001-01H | Screw/bolt, bracket for power electronics to body | M8x45 | Nm | 23 |
CONTROL UNITS
| Number | Designation | Model 166 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) | ||
|---|---|---|---|---|
| BA08.20-P-1002-01H | Screw/bolt, bracket for power electronics to body | M8x25 | Nm | 18 |
CONTROL UNITS
| Number | Designation | Model 166 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) | |
|---|---|---|---|
| BA08.20-P-1003-01H | Screw/bolt, power electronics to bracket | Nm | 9 |
CONTROL UNITS
| Number | Designation | Model 166 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) | |
|---|---|---|---|
| BA08.20-P-1004-01H | Screw/bolt, potential equalization to power electronics | Nm | 16 |
HIGH-VOLTAGE DISTRIBUTOR
| Number | Designation | Model 166 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) | |
|---|---|---|---|
| BA54.10-P-1001-03E | Bolt, high-voltage connector to high-voltage distributor | Nm | 4 |
HIGH-VOLTAGE DISTRIBUTOR
| Number | Designation | Model 166 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) | |
|---|---|---|---|
| BA54.10-P-1003-03E | Bolt, high-voltage distributor to power electronics | Nm | 15 |