Tesla Model S: Cooling System - Vacuum Refill
Note: Make sure at least 14 L of the specified coolant is
available before beginning this procedure.
Caution: Use the specified coolant only. In this manual, refer
to General Information > Capacities, Fluids, and Lubricants >
Fluids.
Refill
- Use Toolbox to prepare the vehicle for draining and refilling
coolant:
- Connect a laptop with Toolbox 2.0 or higher to the
vehicle.
- Oen the "Fluid Drain and Fill" panel.
- Check the "Coolant Panel" check box.
- In the "Routine" dropdown menu, select Fluid
Drain/Fill.
- Press the Start/Play button.
Before continuing this procedure, inspect the "Thermal" mode readout
on the touchscreen and ensure that the powertrain and battery systems
are in "series" mode".
- Use the Thermal System Signals panel to verify that the system
is in series mode and the coolant valves are set to 50%.
- Attach the reservoir adapter to the vacuum refill tool.
- Ensure that the coolant refill valve and the air inlet valve are
closed.
1
|
Coolant refill
hose |
2
|
Coolant refill
valve |
3
|
Air inlet
valve |
4
|
Shop air
supply |
5 |
Overflow hose |
- Connect shop air supply with a minimum pressure of 5.5 bar (80
PSI) to the vacuum refill tool.
- Place the end of the overflow hose in a suitable container to
collect any coolant that is drawn out of the system when the vacuum
is applied.
- Open the air inlet valve.
Note: A hissing noise is normal.
- Allow the tool to evacuate the system until the needle on the
vacuum gauge reaches the green range or the needle stops moving.
Note: It is normal for some cooling hoses
to collapse due to the vacuum in the system.
- Close the air inlet valve and monitor the gauge for
approximately 30 seconds to verify that a vacuum is maintained in
the cooling system.
Note: If the gauge reading drops, there is
a leak in the system that must be fixed before
refilling with coolant.
- Position a container of coolant at, or as close as possible to,
the height of the coolant reservoir.
Note: The container should be filled with
at least 14 L of the specified coolant.
Caution: Use the specified coolant only. In
this manual, refer to General Information >
Capacities, Fluids, and Lubricants > Fluids.
- Place the end of the coolant refill hose into the coolant
container. Ensure that the end is fully submerged.
Tip: If the container is especially deep, the
end of the hose might float in the coolant. Use a
weight, hanger, or other tool to keep the end of the
hose submerged in the coolant.
- Very slowly open the coolant refill valve to allow coolant to be
drawn into the coolant refill hose. Close the valve when the hose is
full of coolant. This purges trapped air from the hose.
- Reopen the air inlet valve. Close the valve when the vacuum
gauge needle stops rising.
- Slowly open the coolant refill valve to allow coolant to be
drawn into the system.
Caution: Ensure that the end of the coolant
refill hose remains submerged to prevent air from
being drawn into the system. Immediately close the
coolant refill valve if air enters the coolant
refill hose.
- Once the gauge stops moving, close the coolant refill valve.
- Remove the vacuum refill tool:
- Leave the coolant refill hose in the container.
- Lift the tool from the reservoir.
- Holding the tool above the container, open the
coolant refill valve to drain the coolant from the
refill hose into the container.
- Start the cooling system bleed procedure (refer to procedure).
Tip: It is not necessary to run the complete
(15 minute) bleed routine. The bleed routine can be
stopped once the coolant level has stabilized.
READ NEXT:
Removal
Drain the cooling system (refer to procedure).
Remove the front fascia assembly for access (refer to
procedure).
Release the clamps (x2) that secure the feed and return ho
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
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
SEE MORE:
Motor
Type
AC induction motor,
liquid-cooled, with variable frequency drive
Rating
320 Volts
Maximum speed of large
motors:- rear motor on all single motor models
- rear motor on P85D
16000 rpm
Maximum speed of small
motors:- front motor on all dual motor
Removal
Disconnect 12V power.
Rear wheel drive (RWD): Refer to
procedure.
Dual Motor: Refer to procedure.
Use a trim tool to carefully release the anchor bolt cap from
the inboard upper pre-tensioner cover.