25/03/2024 17:22:49

Hose - Front Drive Unit Powertrain Bypass (Heat Pump) (RWD) (Remove and Replace)

Correction code 18302302 0.55 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

Warning

This procedure is a DRAFT, although it has been validated. Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near high voltage systems and components. Provide corrections and feedback to ServiceDevelopment@teslamotors.com.

Remove

Raise and support vehicle
Open LH front door
Lower LH front window
Open hood

Note
Press "Open" button on touchscreen to release latch, Lift lid manually
Remove rear apron

Note
12x clips, Only store rear apron visible face upwards
Remove cabin intake upper duct assembly

Note
3x clips, Some configurations may come with 4x clips
Power off vehicle from center display

Note
Via Controls > Safety > Power Off, Select Power Off button at warning dialogue box
Disconnect 12V negative terminal

Note
1x nut, 10mm, 6 Nm, Ensure vehicle is in park, climate control system is off, and vehicle is not charging before disconnecting 12V
Disconnect first responder loop

Note
1x connector, Release locking tab
Raise vehicle fully and lower lift onto locks

Note
Set vehicle to comfortable working height, Make sure there's an audible click of the locks on both sides before lowering, otherwise vehicle may tilt to the side, Verify doors are clear of surrounding objects
Remove outer fasteners securing front aero shield

Note
9x bolts, 10mm, 5 Nm
Remove remaining nuts and remove front aero shield from vehicle

Note
2x nuts, 15mm, 5 Nm
Remove clips securing RH front wheel liner to vehicle

Note
4x clips
Use bungee strap to pull back RH front wheel liner

Note
Secure to subframe
Position coolant drain container underneath RH front of HV battery
Disconnect PT return tube from FDU bypass hose

Note
2x clips, 2x plugs, Lower hose located on RH front of HV battery, Plug both hose ends
Remove coolant drain container from underneath vehicle

Install

Release FDU bypass hose from front subframe

Note
1x fir tree clip
Lower vehicle

Note
Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered, Set vehicle to comfortable working height
Position fluid catcher underneath front of vehicle
Disconnect FDU bypass hose from the Supermanifold and remove from vehicle

Note
1x spring clip, 2x plugs, Plug supermanifold and bypass hose to prevent excess coolant drain
Feed hose into position and install FDU bypass hose to the supermanifold

Note
1x spring clip, 2x plugs, Install plug onto lower end of hose to avoid coolant loss, Remove plug from Supermanifold, Perform push-pull-push test to make sure hose is fully engaged
Remove fluid catcher from underneath vehicle
Raise vehicle fully and lower lift onto locks

Note
Set vehicle to comfortable working height, Make sure there's an audible click of the locks on both sides before lowering, otherwise vehicle may tilt to the side
Secure FDU bypass hose to front subframe

Note
1x fir tree clip
Position coolant drain container underneath RH front of HV battery
Remove plugs then connect PT return tube to FDU bypass hose

Note
2x clips, 2x plugs, Perform push-pull-push test to make sure hoses are fully engaged
Remove coolant drain container from underneath vehicle
Release RH front wheel liner from bungee strap

Note
Remove strap from vehicle
Install clips securing RH front wheel liner to vehicle

Note
4x clips
Position front aero shield to vehicle and install nuts

Note
2x nuts, 15mm, 5 Nm
Apply Loctite 222 onto front aero shield bolts and install outer fasteners to front aero shield

Note
9x bolts, 10mm, 5 Nm
Lower vehicle fully

Note
Raise lift off locks, then hold lock release lever to keep locks free while vehicle is lowered
Install frunk assembly to vehicle

Note
12x clips, Make sure frunk assembly is fully seated onto clips, Number of clips may vary on older vehicles. Ensure A/C compressor HVIL harness is not pinched between frunk assembly and thermal beam
Install bolts securing frunk assembly

Note
7x bolts, 10mm, 5 Nm, Lower RBN covers after installing upper fasteners, Newer vehicles may not be equipped with covers
Install frunk close out panel

Note
4x clips, 1x connector, Frunk safety switch, 3x guide tabs, Align 3x tabs then push downward to secure clips
Remove coolant bottle cap
Inspect coolant level and top off as necessary

Note
Ensure that fluid level is at Max line
Connect first responder loop

Note
1x connector, Engage locking tab, Connect FRL before connecting 12V to avoid damage to car computer
Connect 12V negative terminal

Note
1x nut, 10mm, 6 Nm
Connect to vehicle using Toolbox 3.0

Note
Vehicle connection is integrated into drivers footwell cover, Open Toolbox 3 website and establish connection to the vehicle, https://toolbox.teslamotors.com, Select connection status icon at top right corner, and select connect locally (icon will turn green when vehicle is connected)If RJ45 ethernet diagnostic connector present connect directly from laptop using an RJ45 Ethernet cable
Select ‘Actions/Autodiag’ tab and search for ‘Purge'
Select ‘TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGE ’, click ‘Run’, and allow routine to complete

Note
Make sure vehicle is not in drive state, Plan is still running despite the stop message, Coolant pumps will be audible, Test lasts approximately 10 mins, Speeds can be monitored in garage under PT Thermal tab, Idle speed = ~1500 RPM, Test will vary speeds from 3500-6500 RPM and actuate valve between SERIES and PARALLEL, Putting vehicle into drive state will stop this routine, If speeds hover at 7000 RPM, that means the pumps are air locked, perform vacuum fill again, Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle, Select ‘X’ at top right of window to close once complete
Remove HSD or RJ45 cable from Ethernet port to disconnect Toolbox 3.0 from vehicle
Inspect coolant level and top off as necessary

Note
Ensure that fluid level is at Max line
Install coolant bottle cap
Install cabin intake upper duct assembly

Note
3x clips, Some configurations may come with 4x clips
Install rear apron

Note
12x clips
Close hood
Raise LH front window
Close LH front door
Remove vehicle from lift

Note
Lower rack arms fully and remove from under vehicle

Model 3 Service Manual

Hose - Front Drive Unit Powertrain Bypass (Heat Pump) (RWD) (Remove and Replace)

Remove

Install

Figure 1

Figure 2

Figure 3