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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System - Repair (G30) (1 Of 2) >> 17 00 Cooling, Test >> 17 00 011 Draining and topping up coolant for low temperature circuit (530e PHEV, 2021-2022, 530e xDrive PHEV, 2021-2022) >> Drain the coolant from the low-temperature cooling system

Drain the coolant from the low-temperature cooling system

Prerequisite 

NOTE: DANGER 
High-voltage system. 
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock! 

Preliminary work 

WARNING: Hot surfaces. 
Risk of burning! 
  • Perform all work only on components that have cooled down.
CAUTION: Overheating of the high-voltage system. 
Risk of fire! Injury hazard! 
  • If the low-temperature coolant circuit is empty, de-energize the high-voltage system.
  • Drain the coolant only when the high-voltage system has been de-energized.
NOTE: TECHNICAL INFORMATION 
Immobilization period-long fill of coolant! 
Do not 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 emptied and refilled.
In the case of other removal work involving the draining of part quantities of coolant, the coolant level must be topped up with new coolant.
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
G14217142Courtesy of BMW OF NORTH AMERICA, INC.