2025-04-06
软管 - 变流器至热交换器 - 后驱动单元 (3DU)(拆卸和更换)
校正代码
18300192 1.92 注意:除非本程序中另有明确规定,否则上述校正代码和 FRT 反映的是执行本程序(包括关联程序)所需的所有工作。除非明确要求,否则请勿堆叠校正代码。注意:请参阅平均维修工时,深入了解 FRT 及其创建方式。要提供有关 FRT 值的反馈,请发送电子邮件至LaborTimeFeedback@tesla.com。注意:请参阅人员保护,确保在执行以下程序时穿戴适当的个人防护装备 (PPE)。
- 2025-04-04: Cleaned up procedure for clarity, updated ODIN routines.
- 2023-06-09: Added shear plate small bolts torque figure for Structural Pack vehicles.
1781872-02-A M3/Y REAR AXLE DROP ASSIST KIT
扭矩规格
描述 | 扭矩值 | 推荐工具 | 重复使用/更换 | 备注 |
---|---|---|---|---|
将左后制动钳支架固定到转向节的螺栓 |
![]() 83 Nm (61.2 lbs-ft) |
|
更换 | |
在顶部支座处固定左后减震器的螺栓 |
![]() 41 Nm (30.2 lbs-ft) |
|
重复使用 | |
将后驱动单元接地带固定到车身的螺母 |
![]() 10 Nm (7.4 lbs-ft) |
|
重复使用 | |
将高压电池至后驱动单元线束支架固定到高压电池的螺母 |
![]() 10 Nm (7.4 lbs-ft) |
|
重复使用 | |
将左侧剪力板固定到高压电池的小号螺栓(非结构化电池组车辆) |
![]() 35 Nm (25.8 lbs-ft) |
|
重复使用 | |
将左侧剪力板固定到高压电池的小号螺栓(结构化电池组车辆) |
![]() 62 Nm (45.7 lbs-ft) |
|
||
将左侧剪力板和后副车架固定到车身的大号螺栓 |
![]() 130 Nm (95.9 lbs-ft) |
|
更换 | |
将后副车架固定到车身的螺栓 |
![]() 165 Nm (121.7 lbs-ft) |
|
更换 |
Remove
- Prepare the vehicle for lifting. See 举升车辆 - 双柱举升机.
-
通过“维护模式”或 Toolbox 执行以下例行程序(请参阅0005 - 维护模式):
PROC_VCFRONT_X_START-THERMAL-FILL-DRAINvia Toolbox: (link)via Service Mode:
- Thermal ➜ Actions ➜ Start Thermal Fill/Drain
- Thermal ➜ Coolant System ➜ Start Coolant Fill/Drain
- Thermal ➜ Refrigerant System ➜ Start Refrigerant Fill/Drain
- Disconnect 12V/LV power. See 12V/低压电源(断开和连接).
- Perform the vehicle HV disablement procedure. See 车辆高压禁用程序.
- Remove the LH and RH rear wheels. See 轮毂总成(拆卸和安装).
- Remove the LH and RH suspension cover. See 盖板 - 后悬架 - LH(拆卸和更换).
- Remove the mid aero shield panel. See 面板 - 流线型护板 - 中间(拆卸和更换).
- Remove the rear fascia diffuser. See 扩散器 - 后饰板(拆卸和更换).
- Disconnect the RH side 12V subframe harness connector.
- Remove the RH side 12V subframe harness clip from the body.
- Disconnect the electrical harness from the LH 12V subframe connector.
- Release the clip that attaches the LH subframe electrical harness to the body.
-
Remove the nut that attaches the rear
drive unit ground strap to the body.
TIp推荐使用以下工具:
- 10 毫米 12 角深套筒
- Remove the rear stabilizer bar. See 平衡杆 - 后(拆卸和更换).
- Release the clips (x2) that attach the coolant hoses to the LH shear plate.
-
Release the LH side hose clips from
the rear battery skid plate.
注Number of clips may vary depending on vehicle built date.
- Release the RH side hose clips from the rear battery skid plate.
- Release the clips (x2) that attach the coolant hoses to RH shear plate.
- Position a coolant drain container underneath the LH RDU area.
-
Disconnect the RDU inverter inlet hose
from the fluid coupling.
注Plug ends as needed.
- Remove the coolant drain container from underneath the vehicle.
-
Release the RDU inverter inlet tube
from the RDU HV cable harness.
注1x fir tree clip
- Remove the bolt that attaches the RDU HV cable bracket to the RDU.
- Disconnect the RDU HV connector from the RDU.
-
Perform the RDU diode test.
注Make sure that the RDU HV cable is disconnected from the HV battery.
Use a multimeter in diode mode, with the positive DMM probe to B- of the inverter and the negative probe to B+.
Pin #1 on HV cables is B- and Pin #2 is B+.
MOSFET acceptable diode reading:1.0 - 2.0 V. IGBT acceptable diode reading 0.45 - 2 V (if you get OL or > 2V for a reading you most likely have the probes installed the wrong way around)
-
Release the RDU logic connector.
注Do not allow coolant to enter the connector. Move connector aside as needed.
-
Release the RDU logic connector
clip.
注1x clip
- Place subframe lifting tool into position underneath the rear subframe.
-
Raise subframe lifting tool to support
the rear subframe
注3x straps. Attach metal hooks at the end of the straps to the rings on the subframe lifting tool and pull straps until they are secure. Lower the vehicle as necessary, Assistance is recommended.
- Remove the smaller bolts (x2) that attach the LH shear plate.
- Remove the large bolt that attaches the LH shear plate and subframe to the body, and then remove the shear plate.
-
Install the LH front extension bolt to
secure the subframe to the body.
注During lowering and raising the sub frame, the adjusting nut and the other three nuts should be kept at the same height.
- Repeat steps 30to 32 on the RH side of the vehicle.
- Remove the LH rear bolt that attaches the subframe to the body.
-
Install the LH rear extension bolt t0
secure the subframe to the body.
注During lowering and raising the sub frame, the adjusting nut and the other three nuts should be kept at the same height as possible
- Remove the RH rear bolt that attaches the subframe to the body.
-
Install the RH rear extension bolt to
secure the subframe to the body.
注During lowering and raising the sub frame, the adjusting nut and the other three nuts should be kept at the same height.
-
Partially lower the subframe and rear
drive unit assembly.
注Use caution while lowering subframe to avoid damage to surrounding components. Lower the subframe approximately 13 cm.
- Release the clip that attaches the inverter to heat exchanger hose to the inverter and remove the hose from the inverter.
- Release the clips (x4) that attach the inverter coolant hose to the RDU.
- Release the RDU inverter coolant hose from the heat exchanger, and the remove the hose from the vehicle.
-
Install the inverter to heat exchanger
hose to the heat exchanger.
注Perform a push-pull-push test to make sure that the hose is fully seated.
- Install the clips (x4) that attach the inverter to heat exchanger coolant hose to the RDU.
-
Install the inverter to heat exchanger
hose to the inverter.
注Perform a push-pull-push test to make sure hose is fully seated.
- Raise drive unit and subframe into position.
- Remove the RH rear extension bolt.
-
Install the RH rear bolt that attaches
the rear subframe to the body hand tight.
注Torque at a later step.
- Remove the LH rear extension bolt.
-
Install the LH rear bolt that attaches
the rear subframe to the body hand tight
注Torque at a later step.
- Remove the LH front extension bolt .
-
Install the large bolt and shear plate
to the LH side of the rear subframe hand tight.
注Torque at a later step
-
Install the smaller bolts (x2) that
attach the LH rear shear plate to the body hand tight.
注Torque at a later step.
- Remove the RH front extension bolt.
-
Install the large bolt and shear plate
to the RH side of the rear subframe hand tight.
注Torque at a later step.
-
Install the smaller bolts (x2) that
attach the RH shear plate hand tight.
注Torque at a later step.
-
Torque the smaller bolts that attach
the LH and RH shear plates to the vehicle.
注35 Nm for non-Structural Pack vehicles, 62 Nm for Structural Pack vehicles.
-
Torque the larger bolts that attach
the LH and RH rear shear plate to the body (torque 130 Nm).
注1x bolt, 21mm, 130 Nm, Mark bolt after torque
- Torque the bolt that attaches the RH rear of the subframe to the body (torque 165 Nm).
- Torque the bolt that attaches the LH rear of the subframe to the body (torque 165 Nm).
- Install the clips that attach the coolant hoses to the RH shear plate.
- Install the clips that attach the coolant hoses to the LH shear plate.
-
Lower the rear subframe lifting
tool.
注Make sure that the yellow safety straps are removed from the subframe.
- Remove the subframe lifting tool from underneath the vehicle.
- Attach the RDU logic connector clip.
-
Connect the RDU logic connector.
注Make sure that there is no spilled coolant inside the connector.
- Connect the RDU HV cable connector to the RDU.
- Install the bolt that attaches the RDU HV cable bracket to the RDU (torque 6 Nm).
-
Remove the hose plugs, and then
connect the coolant inlet hose to the rear drive unit.
注Perform a push-pull-push test to make sure that hose is fully seated.
- Install the RDU inverter inlet hose clip onto the HV cable.
- Install the RH side hose clips to the rear battery skid plate.
-
Install the LH side hose clips to the
HV battery rear skid plate enclosure.
注Number of clips may vary per vehicle build date.
- Install the rear stabilizer bar. See 平衡杆 - 后(拆卸和更换).
-
Install the nut that attaches the rear
drive unit ground strap to the body.10 Nm (7.4 lbs-ft)TIp推荐使用以下工具:
- 10 毫米 12 角深套筒
注Reinstall the washer if the vehicle had this washer during removal. -
Install LH side 12V subframe harness
clip to body
注1x clip
-
Connect LH side 12V subframe harness
connector
注1x connector, Engage locking tab
- Install RH side 12V subframe harness clip to the body.
- Connect the RH side 12V subframe harness connector.
- Install the rear fascia diffuser. See 扩散器 - 后饰板(拆卸和更换).
- Install the mid aero shield panel. See 面板 - 流线型护板 - 中间(拆卸和更换).
- Install the LH and RH rear suspension covers. See 盖板 - 后悬架 - LH(拆卸和更换).
- Install the LH and RH rear wheels. See 轮毂总成(拆卸和安装).
- Remove the coolant bottle cap, and then fill the coolant bottle to the "MAX" line.
- Connect 12V power. See 12V/低压电源(断开和连接).
-
通过“维护模式”或 Toolbox 执行以下例行程序(请参阅0005 - 维护模式):
PROC_VCFRONT_X_STOP-THERMAL-FILL-DRAINvia Toolbox: (link)via Service Mode:
- Thermal ➜ Actions ➜ Stop Thermal Fill/Drain
- Thermal ➜ Coolant System ➜ Stop Coolant Fill/Drain
- Thermal ➜ Refrigerant System ➜ Stop Refrigerant Fill/Drain
- Drive Inverter ➜ Front Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
- Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
- Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
- Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Stop Fluid Fill/Drain
- Drive Unit ➜ Front Drive Unit Replacement ➜ Stop Coolant Fill/Drain
- Drive Unit ➜ Rear Drive Unit Replacement ➜ Stop Coolant Fill/Drain
-
通过“维护模式”或 Toolbox 执行以下例行程序(请参阅0005 - 维护模式):
TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGEvia Toolbox: (link)via Service Mode:
- Thermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge Start
- Thermal ➜ Coolant System ➜ Coolant Purge Start
- Drive Inverter ➜ Front Drive Inverter Replacement ➜ Coolant Air Purge
- Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Coolant Air Purge
- Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Coolant Air Purge
- Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Coolant Air Purge
- Drive Unit ➜ Front Drive Unit Replacement ➜ Coolant Air Purge
- Drive Unit ➜ Rear Drive Unit Replacement ➜ Coolant Air Purge
- Inspect coolant level and top off as necessary.
-
通过“维护模式”或 Toolbox 执行以下例行程序(请参阅0005 - 维护模式):
TEST-SELF_VCFRONT_X_THERMAL-PERFORMANCEvia Toolbox: (link)via Service Mode: Thermal ➜ Actions ➜ Test Thermal Performancevia Service Mode Plus:
- Drive Inverter ➜ Front Drive Inverter Replacement ➜ Thermal System Test
- Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Thermal System Test
- Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Thermal System Test
- Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Thermal System Test
- Drive Unit ➜ Front Drive Unit Replacement ➜ Thermal System Test
- Drive Unit ➜ Rear Drive Unit Replacement ➜ Thermal System Test
- Exit Service Mode.
- Install the rear underhood apron. See 前备箱挡板 - 后部(拆卸和更换).
- Install the 2nd row lower seat cushion. See 座椅座垫 - 下部 - 第二排(拆卸和更换).
- Restore the driver and front passenger seats back to their original positions.
- 请参阅“定位要求”表,确定是否需要进行电动助力转向 (EPAS) 定位检查 (EC) 或四轮定位检查 (AC)。如果已执行,请作为一项单独的工项添加定位检查/调整。请参阅定位要求 - 悬架。