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Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> General Information >> OEM General Information >> General Orphan Data (2 Of 3) >> Installing the ignition coils of cylinders 1 and 5

Installing the ignition coils of cylinders 1 and 5

Precondition 

Ignition is switched off.

NOTE: RISK OF DAMAGE 
Damage to the ignition coil. 
The silicone hose of the ignition coil must not be contaminated by fuel as this can lead to failure of the ignition coil. 
  • When working on the fuel system, cover the ignition coils with suitable materials and remove where required.
  • Do not oil or grease the silicone tube of the spark plug socket. Do not  use any protection or maintenance products (e.g. silicone spray, rubber care products, rust remover, etc.).
TIGHTENING TORQUE SPECIFICATIONS

Ignition coil
screw Tightening torque  8 Nm
G15699278Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Wiring harness on the cylinder head cover
M6x16 screw Tightening torque  10 Nm
Nut M6 Tightening torque  10 Nm
G15699279Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Wiring harness on the cylinder head cover
M6x16 screw Tightening torque  10 Nm
Nut M6 Tightening torque  10 Nm
TIGHTENING TORQUE SPECIFICATIONS

Ignition coil
screw Tightening torque  8 Nm
G15699281Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Wiring harness on the cylinder head cover
M6x16 screw Tightening torque  10 Nm
Nut M6 Tightening torque  10 Nm
G15699282Courtesy of BMW OF NORTH AMERICA, INC.
G15699283Courtesy of BMW OF NORTH AMERICA, INC.