Remove the engine wiring harness for sensor system 1

Preliminary work 

• Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
• Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
• Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
• Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
• Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
• Refer to REMOVING THE SEAL FOR THE HOOD REAR .
• Refer to REMOVING LEFT AND RIGHT WIPER ARM .
• Refer to REMOVING THE COWL COVER .
• Refer to REMOVING TRAILING LINK AT SPRING BOLT .
• Refer to REMOVING THE COWL UPPER PART IN THE CENTER .
• Refer to REMOVING THE CENTER BULKHEAD LOWER PART .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING ACOUSTIC COVER AT REAR .
• Refer to REMOVING THE DME CONTROL UNIT .
• Refer to REMOVING THE INTEGRATED SUPPLY MODULE (PDM) PARTIALLY .
• Refer to REMOVING THE CONTROL UNIT HOLDER .
• Refer to REMOVING THE COVER ON LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
• Refer to REMOVING BOTH FRONT-END STRUTS .
• Refer to REMOVING FRONT CROSS CONNECTION .
• Refer to REMOVING THE REAR TOP CROSS CONNECTION .
• Refer to REMOVING THE FAN COWL .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
• Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
• Refer to REMOVING REAR UNDERBODY PROTECTION .
• Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
• Refer to CONNECTING THE COOLANT LINES FOR THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to REMOVING TANK VENT VALVE .
• Refer to REMOVING THE INTAKE PLENUM .

Engine wiring harness for sensor system 1

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• Loosen clamp (1).
• Loosen clamps (2).

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• Release the screws (1).
• Feed out the support (2) for the intake plenum and remove it.

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• Unlock and disconnect plug connections (1).
• Unlock plug connection (2) and disconnect.
• Unlock plug connection (3) and disconnect.
• Release the clamps (arrows).

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• Unlock and disconnect the plug connections (1) and (2).
• Release the clamps (arrows).

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• Loosen screws (1).
• Unlock the lock (arrow).
• Remove the wiring harness section (2) and put to one side.

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• Loosen screws (1).
• Feed out engine wiring harness (2) of sensor system 1 and set aside.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Unlock and disconnect plug connections (1).
• Loosen the clamp (arrow).

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• Unlock plug connection (1) and disconnect.
• Loosen nuts (2).
• Release the positive battery cable (3) from the holder (4).

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• Loosen the expanding rivet (1).
• Undo fir tree clip (2).
• Loosen the clamp (arrow).

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• Loosen expending rivet (1).
• Release the clamps (arrows).
• Lower the acoustic cover (2).

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• Unlock dug connection (1) and disconnect.
• Loosen the lamp (arrow).

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• Feed out engine wiring harness (1) for sensor system 1 and remove it.

  Courtesy of BMW OF NORTH AMERICA, INC.