Tesla Model S: HVAC Assembly (Remove and Replace)
Removal
- Remove cross car beam (refer to procedure).
- Recover refrigerant from AC system (refer to procedure).
- Disconnect AC connection to HVAC, discard 'O' rings (torque 22
Nm).
- Remove screws (x2) securing bulkhead TXV valve to HVAC (torque 6
Nm).
- Disconnect TXV harness connector.
- Remove and discard 'O' ring.
Caution: Lubricate new O-rings with clean refrigerant
oil.
- Disconnect HVAC harness connectors (x10).
- LHD vehicles only: Remove the body controller (BCM)
(refer to procedure).
- Remove bolts (x7) securing HVAC to bulkhead (torque 6 Nm).
- Disconnect HVAC drain tube.
- Remove plastic rivets (x3) securing front LH shock tower cover
to body. Release cover and remove.
- Working from above, disconnect harness connector from DC-DC
module.
Note: Components have been removed in this graphic
to aid clarity.
- Attach a tether to the PTC heater harness.
- With assistance carefully release PTC harness from bulkhead and
withdraw into footwell.
- Disconnect tether from harness connector. Note: Do not withdraw
tether from bulkhead.
- Carefully remove HVAC and place on padded surface to prevent
damage.
Caution: Plug pipe connections to prevent ingress of
moisture or dirt.
Installation
- Installation procedure is the reverse of removal.
Caution: Lubricate new O-rings with clean refrigerant
oil.
- With assistance carefully pull DC-DC harness through bulkhead.
Follow route left by tether, check surrounding components are not
compromised. Cable tie and clip harness and hoses to avoid rubbing.
- Disconnect tether from harness connector.
READ NEXT:
Removal
Remove glove box assembly (refer to procedure)
Disconnect actuator harness connector.
Remove screws (x3) securing recirculation actuator to HVAC
assembly (torque 1 Nm).
Removal
Remove IP carrier (refer to procedure)
Disconnect duct temperature sensor harness connector.
Remove screw securing duct to HVAC assembly and position duct
aside (torque 1
Removal
Remove IP carrier (refer to procedure)
Disconnect duct temperature sensor harness connector.
Remove screw securing duct to HVAC assembly and position duct
aside (torque 1
SEE MORE:
Installation
Use alcohol wipes to clean the mating surfaces
between the RH motor mount and drive unit.
Ensure that the support jack is secured to the
front crossmember.
With an assistant, lower the motor on the crane
while pushing it into the vehicle.
The air conditioning system contains fluids and components which could
be potentially hazardous to the technician or the environment if not
serviced and handled correctly. The following guidelines are intended to
alert the technician to potential sources of danger and emphasize the
impor