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Home >> BMW >> 2021 >> M3 Base, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System -- Repair M3 (G80) >> 17 11 Radiator, Radiator Fan >> 17 11 103 Removing and installing/replacing the coolant expansion tank for the low-temperature coolant circuit (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) >> Removing the coolant expansion tank for the low-temperature coolant circuit

Removing the coolant expansion tank for the low-temperature coolant circuit

Preliminary work 

WARNING: Hot surfaces 
Risk of burning! 
  • Perform all work only on components that have cooled down
CAUTION: Materials harmful to health 
Contact with fluids harmful to health! 
  • Note and follow safety instructions on containers
  • Conduct all work in appropriate personal protective equipment only
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
G14903264Courtesy of BMW OF NORTH AMERICA, INC.
G14903265Courtesy of BMW OF NORTH AMERICA, INC.