Installing wiring harness section for ignition system of bank 1

Wiring harness section for the ignition system of cylinder bank 1

Courtesy of BMW OF NORTH AMERICA, INC.

Feed in and position the wiring harness section for ignition system of the cylinder bank (2).
Position ground cable (2).
Tighten nuts (1).

TIGHTENING TORQUES SPECIFICATION

Ground cable to hold-down device
Nuts	Tightening torque	5.5 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

→ Install ignition coils of cylinder bank 1

Prerequisite

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.).

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 that all connectors are plugged in correctly.
Feed in the ignition coils (2) and install them.
Tighten down screws (1).

Courtesy of BMW OF NORTH AMERICA, INC.

TIGHTENING TORQUES SPECIFICATION

Ignition coil
screw	Tightening torque	8 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Feed in and install the cable clip (2).
Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

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

Courtesy of BMW OF NORTH AMERICA, INC.

Connect and lock connectors (arrows).
The connectors (arrows) must audibly engage.
Guide in and install cover (2).
Insert and install cable (1).
Secure the clamps (arrows).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING CONTROL UNIT HOLDER FOR CYLINDERS 1 TO 4 .
Refer to INSTALLING THE COVER OF THE RIGHT DME CONTROL UNIT .
Refer to CONNECTING NEGATIVE BATTERY CABLE .