Installing the wiring harness section for the sensor system of cylinders 1 to 4

Wiring harness section for the sensor system for cylinders 1 to 4 (top) 

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Overview: Wiring harness section for the sensor system for cylinders 1 to 4 (bottom) 

Wiring harness section for the sensor system for cylinders 1 to 4 (bottom) 

Courtesy of BMW OF NORTH AMERICA, INC.

• Route the wiring harness section for the sensor system of cylinders 1 to 4 and secure it with the clamps.
• Connect all connectors (1)  and lock audibly.
• Connect the connector (2)  to the pressure sensor on the intake plenum and lock audibly.
• Connect the connector (3)  to the rail pressure sensor and lock it audibly.
• Connect the connector (4)  to the camshaft position sensor on the intake camshaft and lock it audibly.

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• Connect the connector (5)  to the Lambda oxygen sensor and the monitoring oxygen sensor and audibly lock it.
• Connect the connector (6)  to the tank vent valve and lock audibly.
• Connect the connector (7)  to the DME control unit of cylinders 1 to 4 and lock it audibly.
• Tighten the screws (1)  .

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• Connect the connector (1)  to the crankshaft sensor and lock it audibly.
• Connect the connector (2)  to the solenoid valve and lock audibly.
• Connect the connector (3)  to the oil pressure sensor and lock it audibly.
• Connect the connector (4)  to the oil-level sensor and lock it audibly.
• Connect the connector (5)  to the rear knock sensor and lock it audibly.

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• Connect connector (6)  at the cable of the temperature sensor for the engine oil temperature and coolant temperature and lock it audibly.
• Connect the connector (7)  to the front knock sensor and lock it audibly.
• Connect the connector (1)  to the auxiliary coolant pump and lock audibly.
• Connect the connector (2)  to the throttle valve and lock audibly.
• Connect the connector (3)  to the pressure sensor of the charge air cooler and lock it audibly.
• Connect the connector (4)  to the intake VANOS solenoid valve and lock audibly.
• Connect the connector (5)  to the VANOS exhaust solenoid valve and lock audibly.

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• Connect the connector (6)  to the coolant thermostat and lock audibly.
• Connect the connector (7)  to the coolant pump and lock audibly.
• Connect the connector (8)  to the coolant temperature sensor and lock it audibly.
• Tighten the screws (1)  .

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• Connect the connector (1)  to the camshaft position sensor of the exhaust camshaft and lock it audibly.
• Connect the connector (2)  to the high pressure pump and lock audibly.
• Connect and audibly lock the connector (3)  to the hot film air mass meter.
• Connect the connector (4)  to the electric controller drive of the wastegate valve and lock it audibly.
• Connect the connector (5)  to the alternator and lock audibly.

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• Fasten all cables (1)  to the holder of the DME control unit.

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• Connect all connectors (1)  to the DME control unit and lock.

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• Mount cover (2)  .
• Lock the locks (1)  .

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to CLEANING SEALING SURFACE ON CYLINDER HEAD .
• Refer to REPLACING SEAL .
• Refer to INSTALLING RIGHT INTAKE SYSTEM .
• Refer to JOINING PLUG CONNECTION FOR THE COOLANT/OIL SENSOR .
• Refer to CLIPPING IN TRANSMISSION WIRING HARNESS .
• Refer to CLIPPING IN POSITIVE BATTERY CABLE .
• Refer to INSTALLING THE RIGHT ENGINE MOUNT HOLDER .
• Refer to INSTALLING FRONT AXLE COMPLETELY .
• Refer to TIGHTENING THE SCREWS ON THE LEFT AND RIGHT FRONT AXLE SUPPORT .
• Refer to SECURING THE SPRING STRUT TO THE BOTTOM WISHBONE .
• Refer to SECURING THE TOP WISHBONE ON THE SWIVEL BEARING .
• Refer to REMOVING THE MOBILE LIFTING TABLE .
• Refer to ATTACHING COOLANT HOSES TO FRONT SUBFRAME .
• Refer to ATTACHING THE THERMOSTAT OR TRANSMISSION OIL COOLER LINE ON THE FRONT SUBFRAME .
• Refer to ATTACHING THE UNIVERSAL JOINT TO STEERING GEAR .
• Refer to IF INSTALLED: CONNECTING THE CONNECTOR OF THE ACTIVE STABILIZER .
• Refer to INSTALLING THE COVER OF THE STEERING ASSEMBLY ON THE LEFT AND RIGHT .
• Refer to SECURING CABLES ON VERTICAL ACCELERATION SENSOR ON RIGHT AND LEFT .
• Refer to ATTACHING THE CABLE OF THE WHEEL RPM SENSOR ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE BRAKE CALIPER AT THE FRONT LEFT AND RIGHT .
• Refer to SECURING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT TO THE ANTI-ROLL BAR .
• Refer to IF INSTALLED: INSTALLING THE SILENCER OF THE STATIONARY HEATING .
• Refer to INSTALLING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
• Refer to INSTALLING LEFT AND RIGHT BRAKE VENTILATION DUCT .
• Refer to SECURING THE WIRING HARNESS FOR THE EPS ON THE FRONT AXLE SUPPORT .
• Refer to INSTALLING THE REINFORCEMENT STRUT ON THE ENGINE MOUNTING ON THE LEFT AND RIGHT .
• Refer to REMOVING THE SECURING TOOL OF THE ENGINE IN INSTALLATION POSITION .
• Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to INSTALLING THE REAR SECTION OF THE FRONT WHEEL ARCH COVER ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE FRONT LEFT AND RIGHT WHEELS .
• Refer to INSTALLING THE RIGHT THROTTLE BODY .
• Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
• Refer to CONNECTING THE RIGHT CHARGE AIR LINE TO THE TURBOCHARGER .
• Refer to INSTALLING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to INSTALLING INTAKE FILTER HOUSING .
• Refer to CONNECTING THE COOLANT HOSE TO THE AUXILIARY COOLANT PUMP .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING FRONT CROSS CONNECTION (FRONT-END STRUT REMOVED) .
• Refer to INSTALLING BOTH FRONT-END STRUTS .
• Refer to INSTALLING THE MOUNT OF THE HOOD SEAL .
• Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT CENTER .
• Refer to TAKING HOOD OUT OF THE SERVICE POSITION .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to CONNECTING ALL BATTERY GROUND LEADS .
• Refer to RESETTING THE TIRE PRESSURE MONITOR .
• Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .