Tesla Model S: Coolant Heater - Electric - Battery - 1st Generation (Remove and Replace)
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
minimum rating of class 00 (500V) must be worn any time a high
voltage cable is handled. Refer to Tech Note TN-15-92-003, "High
Voltage Awareness Care Points" for additional safety information.
This procedure only applies to vehicles with the 1st generation High
Voltage configuration. For vehicles with the 2nd generation High Voltage
configuration, refer to Coolant Heater - Electric - Battery - 2nd
Generation (Remove and Replace).
Removal
- Perform the vehicle electrical isolation procedure (refer
to procedure).
- Remove the underhood storage unit for access (refer to
procedure).
- Remove the RH front wheel arch liner (refer to procedure).
- Disconnect the DCDC converter to battery coolant electric heater
HV harness connector.
- Feed the harness into the underhood storage unit well.
- Disconnect the DC to battery coolant electric heater LV harness
connector.
- Position a container to collect any coolant.
- Clamp the feed and return coolant hoses.
- Release the clips (x2) that secure the feed and return coolant
hoses to the battery coolant heater. Release the hoses from the
heater.
- Release the clips (x3) that secure the wiring harness to the
battery coolant heater.
- Remove the bolts (x3) that secure the battery coolant heater
bracket to the body (torque 8 Nm).
- Remove the battery coolant heater.
- Remove the bolts (x4) that secure the battery coolant heater to
the bracket (torque 9 Nm).
Installation
Installation procedure is the reverse of removal, except for the
following:
Refill and bleed the cooling system (refer to procedure).
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Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
Warning: Only technicians who have been trained in High
Voltage Awareness are permitted to perform this procedure. Proper
personal protective equipment (PPE) and insulating HV gloves with a
Warning: If the 12V power supply is
disconnected, do not attempt to open any doors with door glass
in closed position. Failure to follow this instruction could
result in door glass shat
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Check power source or try different equipment
Charging cannot begin due to a condition that prevents your vehicle from
charging with AC power. DC fast
charging / Supercharging should still function as expected.
Your vehicle has requested AC power from the external charging equipment, but
the onb
Note: In the event of a
stuck caliper or motor failure, refer to one of these procedures to
release the caliper:
Rear Park Brake Caliper - Caliper Seized/Motor Failure - Release
(33051005)
Caution: This method
requires replacing the caliper after it has be