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Home >> BMW >> 2021 >> X4 M40i >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System -- Repair (G02) >> 17 11 Radiator, Radiator Fan >> 17 11 100 Removing and installing/replacing coolant expansion tank >> Installing coolant expansion tank

Installing coolant expansion tank

WARNING: Hot surfaces. 
Risk of burning! 
  • Perform all work only on components that have cooled down.
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.

Follow-up work