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Home >> BMW >> 2021 >> 840i xDrive 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger -- Repair (G14, G15, & G16) (1 Of 2) >> 11 65 Turbocharger >> 11 65 020 Removing and installing/replacing turbocharger (840i xDrive coupe and Gran Coupe sedan) >> When replacing the turbocharger: Dismount the oil coolant lines

When replacing the turbocharger: Dismount the oil coolant lines

NOTE: RISK OF DAMAGE 
Contaminant or foreign body. 
Contamination can result in malfunctions, loss of function or leaks. 
  • Adhere to the utmost cleanliness.
  • Protect components from contamination e.g. by covering.
  • Close off line connections with seal plugs.
G14230081Courtesy of BMW OF NORTH AMERICA, INC.

Initial filling with the additive when replacing the turbocharger 

NOTE: RISK OF DAMAGE 
Dry running due to insufficient initial filling of the turbocharger. 
Damage to the turbocharger. 
  • Be sure to do the initial filling when replacing the turbocharger.
  • Fill the turbocharger with the matching additive (see applicable BMW parts catalogue).
G14230315Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Coolant return line/oil feed line to turbocharger
M6 x 12 tightening torque  8 Nm
G14230074Courtesy of BMW OF NORTH AMERICA, INC.