17 00... Bleeding cooling system for drive (low-temperature cooling system) (I01)
WARNING:
High-voltage system - danger to life
Compliance with the following points is mandatory before beginning work:
Compliance with the following points is mandatory before beginning work:
- Observe SAFETY INFORMATION for handling electric vehicles.
WARNING:
Risk of scalding!
Open sealing cap only after engine has cooled down.
Open sealing cap only after engine has cooled down.
IMPORTANT:
Lifetime coolant filling:
Never reuse used coolant!
Never reuse used coolant!
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be drained and refilled.
In the case of other removal work involving the draining of part quantities of coolant, replace these quantities which have been drained with new coolant.
Follow notes for CARRYING OUT REPAIR WORK ON THE COOLING SYSTEM .
IMPORTANT:
The following bleeding procedure is necessary when a part is replaced in the cooling system or when the cooling system is refilled.
Low-temperature cooling system may only be filled by means of VACUUM FILLING DEVICE !
Filling specification absolutely must be adhered to.
If the specified filling specification is not adhered to (especially watering can filling), sufficient cooling of the E-components cannot be guaranteed.
It is not permissible to operate the vehicle if the filling procedure has not been completely performed. This may lead to functional limitations (degradation).
Low-temperature cooling system may only be filled by means of VACUUM FILLING DEVICE !
Filling specification absolutely must be adhered to.
If the specified filling specification is not adhered to (especially watering can filling), sufficient cooling of the E-components cannot be guaranteed.
It is not permissible to operate the vehicle if the filling procedure has not been completely performed. This may lead to functional limitations (degradation).
Filling and bleeding the NT cooling system (low-temperature cooling system):
- Before beginning the filling procedure, ensure that the heater circuit is filled and bled.
- Evacuate and fill NT cooling circuit with a VACUUM FILLING UNIT approved by BMW. Remove vacuum filling unit after evacuating and filling.
- Connect vehicle to high-voltage charging socket. Switch on ignition/terminal 15 (without operating brake pedal). Switch on light. Apply parking brake. Press button P on gear selector switch.
- Starting bleeding procedure: Set heating control to max. temperature. Operate brake pedal and keep depressed, then fully depress accelerator pedal for <10 s. The procedure with a duration of 12 minutes is started.
- Check coolant level of expansion tank after bleeding procedure of 12 minutes (coolant no longer flows through ventilation line into expansion tank).
- If necessary, top up coolant and adjust to max. Close expansion tank.
Close sealing cap (1) on expansion tank (2) for NT cooling system.