Tesla Model 3: HVAC Assembly (Remove and Replace)

HVAC Assembly- Remove

SPECIAL TOOLS

Kit, EPB Release, Handheld (1134520-00-A)

XP-10 Power Supply, XP-10 (1129348-00-A)

Remove

1. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
2. Remove the cabin intake duct. See Duct - Cabin Intake (Remove and Replace).
3. Remove the hood latch cover. See Cover - Hood Latch (Remove and Replace).
4. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
5. Remove the LH and RH wiper arms. See Wiper Arms (Remove and Replace).
6. Remove the LH and RH shock tower covers. See Cover - Shock Tower - LH (Remove and Replace).
7. Remove the cowl screen panel. See Panel - Cowl Screen (Remove and Replace).
8. Remove the wiper motor. See Wiper Motor (Remove and Replace).

9. Release the clip that attaches the electrical harness to the windshield washer reservoir.

10. Disconnect the electrical connector from the windshield washer reservoir.
11. Remove the outer HVAC plenum duct. See Duct - HVAC Plenum - Outer (Remove and Replace).
12. Remove the inner HVAC plenum duct. See Duct - HVAC Plenum - Inner (Remove and Replace).
13. Perform the A/C refrigerant recovery procedure. See A/C Refrigerant (Recovery and Recharge).
14. Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace).
15. Remove the LH and RH instrument panel end caps. See End Cap - Instrument Panel - LH (Remove and Replace).
16. Remove the LH and RH middle A-pillar trim. See Trim - A-Pillar - Middle - LH (Remove and Replace).
17. Remove the LH and RH lower A-pillar trim. See Trim - A-Pillar - Lower - LH (Remove and Replace).
18. Remove the LH and RH upper A-pillar trim. See Trim - A-Pillar - Upper - LH (Remove and Replace).
19. Remove the driver and front passenger footwell cover. See Cover - Footwell - Driver (Remove and Replace).
20. Perform steps 2 -7 of the removal of the driver and front passenger seats. See Seat - Driver (Remove and Replace).

Note: Do not review the driver and front passenger seat at this time.

21. Disconnect 12V power. See 12V Power (Disconnect and Connect).
22. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure.
23. Remove the LH and RH front wheels. See Wheel (Remove and Install).
24. Remove the LH front wheel arch liner. See Wheel Arch Liner - Front - LH (Remove and Replace).
25. Remove the windshield washer reservoir. See Reservoir - Windshield Washer (Remove and Replace).
26. Remove the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).

27. Disconnect the HV harness connector from the PTC heater.
28. Release the clips that attach the PTC heater electrical connector to the body.
29. Fully release the rear park brake calipers. See Parking Brake - Caliper - Rear - LH (Release).
30. Lower the vehicle partially.
31. Install the LH front wheel, but do not fully tighten the lug nut at this time.
32. With an assistant, push the vehicle away from the lift.

Note: Secure the vehicle with wheel chocks.

33. Perform step 8-12 for the removal of the driver and front passenger seats. See Seat - Driver (Remove and Replace).
34. Remove the driver knee airbag. See Airbag - Knee - Driver (Remove and Install).
35. Remove the LH footwell duct. See Duct - Footwell - LH (Remove and Replace).
36. Remove the center console. See Center Console (Remove and Install).
37. Remove the front passenger knee airbag. See Airbag - Knee - Front Passenger (Remove and Replace).
38. Remove the LH and RH air wave end cap. See End Cap - Air Wave - LH (Remove and Replace).
39. Remove the main instrument panel decor trim. See Decor Trim - Instrument Panel - Main (Remove and Replace).
40. Remove the glove box. See Glove Box (LHD) (Remove and Replace).
41. Remove the RH footwell duct. See Duct - Footwell - LH (Remove and Replace).
42. Remove the RH air wave duct. See Duct - Air Wave - RH (Remove and Replace).
43. Remove the driver air bag. See Airbag - Driver (Remove and Replace)
44. Remove the steering wheel. See Steering Wheel (Remove and Install).
45. Remove the steering column control module. See Module - Steering Column Control (Remove and Replace).
46. Remove the touchscreen. See Touchscreen (Remove and Replace).
47. Remove the LH front vent. See Vent - Front - LH (Remove and Replace).
48. Remove the RH front vent. See Vent - Front - RH (Remove and Replace).
49. Remove the RH air wave duct. See Duct - Air Wave - RH (Remove and Replace).
50. Remove the LH, center, and RH dash speakers. See Speaker - Dash - LH (Remove and Replace).
51. Remove the front passenger airbag. See Airbag - Front Passenger (Remove and Install).
52. Remove the IP carrier. See IP Carrier (Remove and Install).
53. Remove the LH air wave duct. See Duct - Air Wave - LH (Remove and Replace).
54. Remove the LH front carpet. See Carpet - Front - LH (Remove and Replace).
55. Remove the RH front carpet. See Carpet - Front - RH (Remove and Replace)
56. Remove the cross car beam. See Beam - Cross Car (Remove and Replace).

57. Release the clips that attach the RH and LH floor ducting to the floor, and remove the ducting.

58. Disconnect the HVAC harness connector from the RH body controller.
59. Remove the TXV valve. See TXV Valve - Evaporator (Remove and Replace).

60. Remove the bolt that attaches the HVAC module to the body. Torque 5.5 Nm

61. Remove the grommet and pull the PTC heater harness through the bulkhead.
62. Remove the bolt that attaches the lower LH side of the HVAC assembly to the vehicle. Torque 5.5 Nm
63. With assistance, remove the HVAC assembly from the vehicle.

HVAC Assembly- Install

Install

1. With an assistant, position the HVAC assembly into the vehicle.

Note: Align the drain hose and TXV housing.

2. Install the bolt that attaches the lower LH side HVAC assembly to the vehicle. Torque 5.5 Nm
3. Push the PTC heater harness through the bulkhead, and then install the grommet.

Note: Use caution not to damage the HV cable while passing the cable through the bulkhead.

4. Install the bolt that attaches the HVAC module to the body near the HVAC inlet. Torque 5.5 Nm
5. Install the TXV valve. See TXV Valve - Evaporator (Remove and Replace).
6. Perform the A/C refrigerant recharge. See A/C Refrigerant (Recovery and Recharge).

7. Connect the HVAC harness connector from the RH body controller.

8. Release the clips that attach the RH and LH floor ducting to the floor, and remove the ducting.
9. Install the cross car beam. See Beam - Cross Car (Remove and Replace).
10. Install the RH front carpet. See Carpet - Front - RH (Remove and Replace).
11. Install the LH front carpet. See Carpet - Front - LH (Remove and Replace).
12. Install the LH air wave duct. See Duct - Air Wave - LH (Remove and Replace).
13. Install the IP carrier. See IP Carrier (Remove and Install).
14. Install the front passenger airbag. See Airbag - Front Passenger (Remove and Install).
15. Install the LH, center, and RH dash speakers. See Speaker - Dash - LH (Remove and Replace).
16. Install the RH air wave duct. See Duct - Air Wave - RH (Remove and Replace).
17. Install the RH front vent. See Vent - Front - RH (Remove and Replace).
18. Install the RH footwell duct. See Duct - Footwell - LH (Remove and Replace).
19. Install the LH front vent. See Vent - Front - LH (Remove and Replace).
20. Install the touchscreen. See Touchscreen (Remove and Replace).
21. Remove the steering column control module. See Module - Steering Column Control (Remove and Replace).
22. Install the steering wheel. See Steering Wheel (Remove and Install).
23. Install the driver air bag. See Airbag - Driver (Remove and Replace).
24. Install the RH air wave duct. See Duct - Air Wave - RH (Remove and Replace).
25. Install the RH footwell duct. See Duct - Footwell - LH (Remove and Replace).
26. Install the glove box. See Glove Box (LHD) (Remove and Replace).
27. Install the main instrument panel decor trim. See Decor Trim - Instrument Panel - Main (Remove and Replace).
28. Install the LH and RH air wave end cap. See End Cap - Air Wave - LH (Remove and Replace).
29. Install the front passenger knee airbag. See Airbag - Knee - Front Passenger (Remove and Replace).
30. Install the center console. See Center Console (Remove and Install).
31. Install the LH footwell duct. See Duct - Footwell - LH (Remove and Replace).
32. Install the driver knee airbag. See Airbag - Knee - Driver (Remove and Install).
33. Install the driver seat. See Seat - Driver (Remove and Replace).
34. Install the windshield washer reservoir. See Reservoir - Windshield Washer (Remove and Replace).
35. Perform the platter enclosure air leak test. See Platter Enclosure Air Leak Test.
36. Install the clips that attach the PTC heater electrical connector to the body.

37. Install the HV harness connector to the PTC heater.
38. Install the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).
39. Install the LH front wheel arch liner. See Wheel Arch Liner - Front - LH (Remove and Replace).
40. Install the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).
41. Install the LH front wheel. See Wheel (Remove and Install).
42. Reconnect 12V power. See 12V Power (Disconnect and Connect).
43. Use a laptop to update vehicle firmware
44. Install the front passenger seat. See Seat - Driver (Remove and Replace).
45. Install the driver and front passenger footwell cover. See Cover - Footwell - Driver (Remove and Replace).
46. Install the LH and RH upper A-pillar trim. See Trim - A-Pillar - Upper - LH (Remove and Replace).
47. Install the LH and RH lower A-pillar trim. See Trim - A-Pillar - Lower - LH (Remove and Replace).
48. Install the LH and RH middle A-pillar trim. See Trim - A-Pillar - Middle - LH (Remove and Replace).
49. Install the LH and RH instrument panel end caps. See End Cap - Instrument Panel - LH (Remove and Replace).
50. Install the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace).
51. Install the inner HVAC plenum duct. See Duct - HVAC Plenum - Inner (Remove and Replace).
52. Install the outer HVAC plenum duct. See Duct - HVAC Plenum - Outer (Remove and Replace).
53. Install the wiper motor. See Wiper Motor (Remove and Replace).
54. Install the cowl screen panel. See Panel - Cowl Screen (Remove and Replace).
55. Install the LH and RH shock tower covers. See Cover - Shock Tower - LH (Remove and Replace).
56. Remove the A/C lines from the vehicle.
57. Inject oil into the A/C system.
58. Install the caps onto the A/C ports.
59. Test the A/C function and make sure that the HVAC blows cold air.
60. Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
61. Install the hood latch cover. See Cover - Hood Latch (Remove and Replace).
62. Install the cabin intake duct. See Duct - Cabin Intake (Remove and Replace).
63. Install the LH and RH wiper arms. See Wiper Arms (Remove and Replace).
64. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).