2026-07-02

软管 - 冷却器至高压电池（热泵）（双电机）（拆卸和更换） ((拆卸和更换))

校正代码 18302412 FRT 2.16 注意：除非本程序中另有明确规定，否则上文所列校正代码和 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。 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)。 注意：请参阅人体工程学注意事项查看安全健康的作业规程。

2026-06-24: Released new procedure.

Remove

Put the vehicle on a 2 post lift. See 举升车辆 - 双柱举升机.
Open all doors and lower the windows.

注
Latch the rear doors to prevent accidental closure after the vehicle is powered off.
Remove the 2nd row seat cushion. See 座椅座垫 - 下部 - 第二排（拆卸和更换）.
Remove the rear underhood apron. See 前备箱挡板 - 后部（拆卸和更换）.
Enable Service Mode. See 维护模式.
Unlock the vehicle Gateway. See 网关（解锁）.
On the touchscreen, touch Service Mode > Thermal > Coolant System > Coolant Fill/Drain, touch Run, and allow the routine to complete.
Disconnect 12V/LV power. See 12V/低压电源（断开和连接）.
Lock steering wheel into position.
Perform the vehicle HV disablement procedure. See 车辆高压禁用程序.
Remove the clips (x3 or 4) that attach the cabin intake upper duct assembly.
Remove the underhood storage unit. See 前备箱储物单元（拆卸和更换）.
Remove and discard the bolt that attaches the steering gear assembly to intermediate shaft assembly.
Slide the electric steering column upward to remove it from the steering gear assembly.

注
You may need to wiggle or use a dead blow hammer to help separate.
Remove the cowl screen panel. See 面板 - 前围篦板（拆卸和更换）.
Remove the fresh air intake duct. See 槽 - 新鲜空气进气（拆卸和更换）.
Remove the 12V/LV battery. See 12V/低压电池（拆卸和更换）.
Remove the coolant bottle cap.
Place a fluid extractor in front of the vehicle.

注
Set Mityvac to evacuate.
Evacuate coolant from the coolant bottle.

注
Place evacuation hose in bottle at left front corner to remove as much fluid as possible, pump fluid into Mityvac evacuator.
Remove the front aero shield panel. See 面板 - 流线型护板 - 前（拆卸和更换）.
Position a coolant drain container below the HV battery front manifold hose.
Disconnect the FDU inverter inlet hose from the fluid coupling.

注
Plug the hose end and fluid coupling.
Release the FDU inverter inlet hose from the FDU.
Release the HV battery front manifold hose from the body.
Disconnect the HV battery front manifold hose and plug both hose ends.
Remove the bolt that attaches the FDU HV harness to the FDU.
Disconnect the FDU HV harness connector.

注
Release the locking tab and rotate the release lever up to disengage the connector. Do not force the release lever up. Make sure that the alignment tabs on the FDU header are not damaged.
Remove the bolt that attaches the FDU ground strap to the FDU.
Release the FDU ground strap harness clip from the FDU.
Slide the intermediate shaft towards the rear of the vehicle.
Position a stand to support the LH side of the FDU.

注
This will allow the LH side mount bolt to be backed out with ease.
Back out the bolt until the backside is flush with the subframe.

注
By backing this bolt out, it allows for clearance between the subframe and the bulkhead when removing and installing the hose from/to the vehicle. DO NOT fully remove the bolt. This way, the FDU can continue to be supported.
Remove the stand from below the FDU.
Position a coolant catcher underneath the front of the vehicle.
Remove the coolant bottle from the supermanifold. See 冷却液罐（带加热泵款）（拆卸和更换）.
Remove the bolts that attach the shock tower brace to the LH and RH shock tower.
Move the shock tower brace assembly forward to gain clearance.
Remove the retaining clip that attaches the A/C compressor HV harness to the front harness guide cover.
Release the hose clip from below the RH side of the 12V beam.
Remove the bolts (x2) that attach the 12V beam to the body.
Disconnect the thermal sub-harness from the front controller.

注
Depress locking tab and rotate to release.
Remove the bolts (x3) that attach the front controller to the body.
Tilt the front controller forward for access.
Remove the bolt and clip that attach the ground cable to the rear side of the front controller.
Put absorbent material below the car computer coolant hose connection points to collect any spilled coolant.
Disconnect and plug the outer coolant hose to the car computer mount.
Disconnect the inner coolant hose to car computer mount.
Install the car computer coolant plug.
Release the hose clips from the RH side of the bulkhead.
Release the hose clip from the LH side of the bulkhead.
Remove the chiller to battery hose from the vehicle.

注
Remove hose from the RH side of the vehicle. Gently maneuver the hose as needed to clear any surrounding objects.

Install

Position the chiller to battery hose to the vehicle for installation.

注
Feed hose into position from the RH side of the vehicle along the bulkhead. Gently maneuver the hose as needed to clear any surrounding objects.
Raise the vehicle.
Position a coolant drain container below the HV battery front manifold hose.
Remove the plugs, and then connect the HV battery front manifold hose.

注
Perform a push-pull-push test to make sure that the hose is fully engaged.
Install the clip that attaches the HV battery front manifold hose to the body.
Install the clip that attaches the FDU inverter inlet hose.
Remove the plug from the fluid coupling and connect the FDU inverter inlet hose.

注
Perform a push-pull-push test to make sure that the hose is fully engaged.
Remove the coolant drain container from underneath the vehicle.
Position a stand to support the LH side of the FDU.

注
This will allow LH side mount bolt to be backed in with ease.
Install the LH FDU mounting bolt.
105 Nm (77.4 lbs-ft)

注
Using a 3/8 Dr. ratchet with adapter will ease torquing as space is limited.
Remove the stand from below the FDU.
Slide the intermediate shaft towards the front of the vehicle.
Attach the FDU ground strap harness clip to the FDU.
Install the bolt that attaches the FDU ground strap to the FDU.
6 Nm (4.4 lbs-ft)
Connect the FDU HV harness connector to the FDU.

注
Make sure that the lever is in the upright and open position. Carefully seat the connector and allow the lever to engage. Fully install the lever and engage the red locking tab. Do not damage the connector or header.
Install the bolt that attaches the FDU HV harness to the FDU.
10 Nm (7.4 lbs-ft)
Install the front aero shield panel. See 面板 - 流线型护板 - 前（拆卸和更换）.
Install the hose clip onto the LH side of the bulkhead.
Install the hose clips onto the RH side of the bulkhead.
Install the hose clip onto the bottom RH side of the 12V beam.
Install the retaining clip that attaches the A/C compressor HV harness to the front harness guide cover.

注
Feed the harness down against the firewall of the vehicle to continue installation.
Remove the coolant plug from the car computer.
Connect the outer coolant hose to the car computer mount.

注
Perform a push-pull-push test to make sure that the hose is fully seated.
Connect the inner coolant hose to the car computer mount.

注
Perform a push-pull-push test to make sure that the hose is fully seated.
Remove the absorbent material from below the car computer coolant hose connection points.
Install the bolt and clip that attach the ground cable to the rear side of the front controller.
8.5 Nm (6.3 lbs-ft)

注
1x bolt, 10mm, 8.5 Nm, 1x tab, 1x edge clip
Install the harness guide and tilt the front controller backwards for installation.

注
1x tab
Install the bolts (x3) that attach the front controller to the body.
10 Nm (7.4 lbs-ft)
Connect the thermal sub-harness to the front controller.

注
Rotate fully to enable attaching the locking tab.
Install the bolts (x2) that attach the 12V beam to the body.
9 Nm (6.6 lbs-ft)
Install the coolant bottle. See 冷却液罐（带加热泵款）（拆卸和更换）.
Position the shock tower brace assembly back for installation.
Install the bolts that attach the shock tower brace to LH and RH shock tower.

注
See image for torques.
Install the 12V/LV battery. See 12V/低压电池（拆卸和更换）.
Slide the intermediate shaft assembly downward to install it to the steering gear assembly.

注
Make sure that the intermediate shaft is aligned and fully seated.
Install a new bolt that attaches the intermediate shaft to the steering gear assembly.
18 Nm (13.3 lbs-ft)
Install the fresh air intake assembly. See 槽 - 新鲜空气进气（拆卸和更换）.
Install the cowl screen assembly and all parts removed to remove the cowl screen assembly. See 面板 - 前围篦板（拆卸和更换）.
Install the underhood storage unit. See 前备箱储物单元（拆卸和更换）.
Connect 12V/LV power. See 前备箱储物单元（拆卸和更换）.
Remove the steering wheel holder.
Perform a vacuum refill. See 冷却系统（真空再加注）.
Inspect the coolant level and top off as necessary.

注
Make sure that the fluid level is at the MAX line.
Enable Service Mode. See 维护模式.
Access thermal system routines via UI

注
Select Service mode > Thermal
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-DRAIN
via Service Mode:
Thermal ➜ Actions ➜ Stop Thermal Fill/Drain
Thermal ➜ Coolant System ➜ Stop Coolant Fill/Drain
Thermal ➜ Refrigerant System ➜ Stop Refrigerant Fill/Drain
via Service Mode Plus:
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
via Toolbox:(link)
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-PURGE
via Service Mode:
Thermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge Start
Thermal ➜ Coolant System ➜ Coolant Purge Start
via Service Mode Plus:
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
via Toolbox:(link)
Exit Service Mode. See 维护模式.
Install the coolant reservoir cap.
Install the clips (x3 or 4) that attach the cabin intake upper duct assembly.
Install the rear apron. See 前备箱挡板 - 后部（拆卸和更换）.