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Home >> BMW >> 2021 >> 740i xDrive >> Repair and Diagnosis >> Electrical >> Gauges >> Engine Electrical System - Spark Plugs, Coils, Sensors, & Alternator - Repair (G12) >> 12 13 Ignition Coils >> 12 13 011 Replacing the ignition coil (s) (750i 2016-2019) >> Installing the ignition coils

Installing the ignition coils

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.).
NOTE: RISK OF DAMAGE 
Damage to the catalytic converter due to misfiring. 
An incorrectly mounted ignition coil can loosen during engine operation, thereby causing misfiring. 
  • Ensure that the sealing lip fits correctly on the ignition coil so that it can seal correctly. Do not crush the sealing lip.
NOTE: The description is provided only at one component. The procedure is the same for all other components.
G14240776Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work