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Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Cooling System -- Repair (G01) >> 17 11 Engine Oil Cooler With Attachment >> 17 11 103 Removing and installing/replacing coolant expansion tank for the low-temperature coolant circuit (all X3 models except PHEV, 2018-2022) >> Remove the coolant expansion tank for the low-temperature coolant circuit

Remove 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 
Use commercially available pinch-off tools to pinch off the coolant hoses.
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
NOTE: TECHNICAL INFORMATION 
Only flexible hose pipes may be disconnected.
G14298814Courtesy of BMW OF NORTH AMERICA, INC.