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Home >> BMW >> 2021 >> 840i xDrive 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Cylinder Head -- Repair (G14, G15, & G16) (1 Of 7) >> 11 12 Cylinder Head >> 11 12 411 Seal/replace screw plugs of cylinder head (840i xDrive coupe, 840i xDrive Gran Coupe sedan) >> Installing the screw plug on the cylinder head

Installing the screw plug on the cylinder head

NOTE: TECHNICAL INFORMATION 
The brake cleaner must not get into the exhaust ports.
NOTE: TECHNICAL INFORMATION 
The sealing surface and the thread must be dry and free of grease and particulates.
CONSUMABLE SPECIFICATIONS

Brake cleaner 2.0  500 ml, Spray can 83192365214
20, Canister 83192365215
G15126485Courtesy of BMW OF NORTH AMERICA, INC.
ADHESIVE SPECIFICATIONS

Screw lock Loctite Stick 243, medium strength  10 ml, Bottle 83192210339
TIGHTENING TORQUE SPECIFICATIONS

Screw plugs on cylinder head
M28X1.5
Replace the screw plugs.
Wet the screw plugs with Loctite. (Loctite 243)
Tightening torque  25 Nm
G15126484Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Screw plug on cylinder head
M28X1.5 Angle of rotation  60°
G15126491Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work