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Home >> BMW >> 2021 >> M440i xDrive >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Water Pump -- Repair (G22, G23 & G26) >> 11 51 Water Pump >> 11 51 028 Removing and installing/replacing auxiliary water pump for turbocharger (RWD with 4-cyl. engine) (430i convertible) >> Removing the auxiliary coolant pump for the turbocharger

Removing the auxiliary coolant pump for the turbocharger

Preliminary work 

NOTE: RISK OF DAMAGE 
Non-visible damage to the coolant pump. 
Forcibly removing, installing or dropping the coolant pump down will damage it. 
  • Remove and install the coolant pump without damaging it and without applying external force.
  • Avoid impacts/knocks to the coolant pump (e.g. by tools, falling down, hard contact with base).
  • Replace coolant pump after being dropped or hard impacts/knocks.
NOTE: RISK OF DAMAGE 
Electrostatic discharge. 
Damage to or destruction of electrical components. 
  • Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
  • Read and comply with user information on using the associated special tool 12 7 060.
  • Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
  • Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
  • For additional information see: NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.