Removing the wiring harness section for injectors of cylinders 5 to 8
Precondition
- Ignition is switched off.
NOTE:
RISK OF DAMAGE
Electrostatic discharge.
Damage to or destruction of electrical components.
Electrostatic discharge.
Damage to or destruction of electrical components.
- Leave the electrical components in their original packaging until they are being installed. Only use the original packaging for returning the product. Always package removed components straight away.
- Read and comply with user information on using the associated special tool 12 7 060.
- Only tap the housings of electrical components. Do not tap pins or multi-pin connectors directly.
- Wear electrically conductive clothing and antistatic shoes (with ESD symbol).
- For additional information see: NOTES ON ESD (ELECTROSTATIC DISCHARGE) PROTECTION .
NOTE:
RISK OF DAMAGE
Malfunction or failure of the DME.
Grounding points that are not screwed on may lead to malfunction or failure of the DME.
Malfunction or failure of the DME.
Grounding points that are not screwed on may lead to malfunction or failure of the DME.
- Screw all screw points of the cable ducts on again. Some of the screw points are also grounding points.
NOTE:
TECHNICAL INFORMATION
If control units are disconnected, fault memory entries and functional limitations may occur.
The fault memory entries must be read out and, if necessary, deleted.
If control units are disconnected, fault memory entries and functional limitations may occur.
The fault memory entries must be read out and, if necessary, deleted.
Preliminary work
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
- Refer to REMOVING BOTH FRONT-END STRUTS .
- Refer to REMOVING FRONT CROSS CONNECTION (FRONT-END STRUT REMOVED) .
- Refer to REMOVING THE REAR TOP CROSS CONNECTION .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING INTAKE SILENCER HOUSING .
- Refer to REMOVING THE LEFT UNFILTERED-AIR DUCT .
- Refer to RELEASING THE LEFT CHARGE AIR LINE FROM THE TURBOCHARGER .
- Refer to REMOVING LEFT CLEAN AIR PIPE .
- Refer to REMOVING COVER FOR THE DME CONTROL UNIT ON LEFT .
Wiring harness for the injectors of cylinders 5 to 8
NOTE:
RISK OF DAMAGE
Malfunction or failure of the DME.
Grounding points that are not screwed on may lead to malfunction or failure of the DME.
Malfunction or failure of the DME.
Grounding points that are not screwed on may lead to malfunction or failure of the DME.
- Screw all screw points of the cable ducts on again. Some of the screw points are also grounding points.
- Unlock and remove the cover (2)
.
- Unlock all connectors (1)
from the rear to the front and then detach them off of the DME control unit.
- Detach all cables (1) from the DME control unit holder.
NOTE:
The description is provided only at one component. The procedure is the same for all other components.
- Unlock the connector fastener (1) of the ignition coils and detach the connector (2) from the ignition coils of cylinders 5 to 8.
NOTE:
Schematic diagram is for example purposes. Some parts may differ in certain details.
- Unlock and disconnect the connectors (2) from the injectors with a small slotted screwdriver (1) .
- Unlock the lock in the direction of the arrow with a small slotted screwdriver (1) .
- Disconnect the connector (2)
on the connector housing from the injector.
- Unlock and detach connector (1) from injectors.
- Loosen nuts (2) .
- Remove ground cable.
- Unlock connector (3) and detach from the rail pressure sensor.
- Loosen screws (4) .
- Detach the wiring harness section for the injectors of cylinders 5 to 8 from the other wiring harnesses.
- Feed out and remove the wiring harness section for injectors of cylinders 5 to 8.