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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 51 Charge Air Cooler >> 17 51 000 Remove and install/replace charge air cooler (with manifold) (M3 Competition M xDrive, M3 CS) >> Remove charge air cooler

Remove charge air cooler

WARNING: Working on 12 V electrical system 
Risk of short circuits! Risk of fire! 
  • Make sure that there is no charger  connected to the jump start terminal in the engine compartment
  • Detach battery ground lead from battery
  • For auxiliary batteries: Detach battery minus cables from all auxiliary batteries
NOTE: RISK OF DAMAGE 
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS) 
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults 
  • Detach battery terminal from battery pole. Do not pry off using a tool
NOTE: TECHNICAL INFORMATION 
When the engine is stopped after the completion of trip, it may be necessary to run the electric fan. In rare cases, operation of the electric fan can last up to 11 min. This protects the components. In this case, replacing the electric fan will not remedy the problem!

Preliminary work 

Bolts of the charge air cooler with collector 

G14926910Courtesy of BMW OF NORTH AMERICA, INC.

A Charge air cooler with manifold 

1 - Screws 

7 

NOTE: RISK OF DAMAGE 
Damage to wires when disconnecting connectors and plug connections 
Sheared wires can cause a short circuit 
  • Do not pull on wires when disconnecting connectors and plug connections
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations
NOTE: TECHNICAL INFORMATION 
Additional coolant can leakage. Make sure that no coolant enters the intake port of the cylinder head
G14901744Courtesy of BMW OF NORTH AMERICA, INC.
G14926092Courtesy of BMW OF NORTH AMERICA, INC.
G14901651Courtesy of BMW OF NORTH AMERICA, INC.
G14901654Courtesy of BMW OF NORTH AMERICA, INC.
G14901657Courtesy of BMW OF NORTH AMERICA, INC.
G14901660Courtesy of BMW OF NORTH AMERICA, INC.
G14901663Courtesy of BMW OF NORTH AMERICA, INC.