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Home >> BMW >> 2021 >> M5 Base >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Electrical System -- Repair M5 (F90) >> 12 13 Ignition Coil >> 12 13 512 Replacing more than one ignition coil (after vehicle diagnosis) (M5 2021-2022) >> Install ignition coils of cylinder bank 1

Install ignition coils of cylinder bank 1

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: The description is provided only at one component. The procedure is the same for all other components.

Blow out the spark plug shafts (2) before the installation of the ignition coils with an air gun (1).

G15179030Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.

Check all connectors (1) on the injectors again to ensure they are correctly fitted.

Check if all connectors (1) have locked noticeably.

G15179031Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.

Feed in the ignition coils (2) and install them.

Tighten down screws (1).

G15179032Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Ignition coil 
screw Tightening torque  8 Nm

Feed in and install the cable clip (2).

Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Wiring harness to cylinder head cover 
M6x16 screw Tightening torque  8 Nm
G15179033Courtesy of BMW OF NORTH AMERICA, INC.

Position the expansion tank (1) for the charge air cooler.

TIGHTENING TORQUES SPECIFICATION

Low-temperature coolant circuit expansion tank 
Tightening torque screw  2.6 Nm
G15179034Courtesy of BMW OF NORTH AMERICA, INC.