Removing the left intake plenum

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

WARNING: Hot fluids.
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

WARNING: Hot exhaust system.
Risk of burning!

Any work must exclusively be carried out with an exhaust system that has cooled down.

WARNING: Car may slip off the vehicle hoist where components are supported.
Danger! Immobilization period-threatening injuries!

Secure the vehicle hoist against lowering and lifting.
Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.

WARNING: Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly.
Danger! Immobilization period-threatening injuries!

Observe safety instructions on raising the vehicle using a vehicle hoist.
For additional information see: RAISING THE VEHICLE WITH A VEHICLE LIFT .

WARNING: Car may slip off the vehicle hoist if the weight is distributed unevenly.
Danger! Immobilization period-threatening injuries!

Ensure there is a specific weight compensation on the car.

Preliminary work

Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
Refer to REMOVING THE COVER FOR THE CENTER ENGINE COMPARTMENT .
Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE COVER PANEL OF THE LEFT DME CONTROL UNIT .
Refer to REMOVING THE CONTROL UNIT BRACKET FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING THE ENGINE BRIDGE .
Refer to PARTIALLY LOOSENING THE FRONT AIR SUSPENSIONS .
Refer to REMOVING THE FRONT LEFT AND RIGHT WHEELS .
Refer to REMOVING THE REAR SECTION OF THE WHEEL ARCH COVER ON THE FRONT LEFT AND RIGHT .
Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR AND THRUST FIELD RESPECTIVELY .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to REMOVING THE STIFFENING PLATE .
Refer to REMOVING THE OUTPUT SHAFTS .
Refer to REMOVING THE RIGHT ENGINE MOUNTING REINFORCEMENT STRUT .
Refer to DETACHING THE WIRING HARNESS OF THE EPS FROM THE FRONT AXLE SUPPORT .
Refer to REMOVING LEFT AND RIGHT BRAKE VENTILATION DUCT .
Refer to REMOVING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
Refer to IF INSTALLED: REMOVING THE SILENCER OF THE STATIONARY HEATING .
Refer to RELEASING THE FRONT LEFT AND RIGHT BRAKE CALIPERS .
Refer to DETACHING THE CABLE OF THE WHEEL RPM SENSOR ON THE LEFT AND RIGHT .
Refer to RELEASING CABLE FROM VERTICAL ACCELERATION SENSOR ON LEFT AND RIGHT .
Refer to REMOVING THE COVER OF THE STEERING ASSEMBLY ON THE LEFT AND RIGHT .
Refer to IF INSTALLED: DISCONNECTING THE PLUG CONNECTIONS OF THE ACTIVE STABILIZER .
Refer to REMOVING UNIVERSAL JOINT .
Refer to RELEASING THE THERMOSTAT OR TRANSMISSION OIL COOLER LINE FROM THE FRONT SUBFRAME .
Refer to DETACHING COOLANT HOSES FROM THE FRONT AXLE SUPPORT .
Refer to PREPARING THE MOBILE TABLE LIFT .
Refer to POSITIONING THE MOBILE LIFTING TABLE .
Refer to REMOVING THE TOP SWIVEL BEARING ATTACHMENT .
Refer to UNSCREWING THE BOLTS ON THE FRONT AXLE SUPPORT .
Refer to COMPLETELY REMOVING FRONT AXLE .
Refer to REMOVING THE LEFT ENGINE SUPPORT BRACKET .

Screws of the left intake plenum

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Unlock the clamp (1) .

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Unlock plug connection (1) and disconnect.

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Unlock the locks (1) in the direction of the arrow.
Disconnect the transmission oil lines (2) .
Catch and dispose of the leakage transmission oil.

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Release the belt tensioner (2) clockwise with a suitable socket wrench (1) .

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Maintain the preload of the belt tensioner (1) using a suitable socket wrench (3) .
Secure the belt tensioner (1) against rotation, using a special tool 0 496 268 (11 0 390) (2) .

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Unlock and disconnect the tank vent line (1) .
Unlock plug connection (2) and disconnect.

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Remove the drive belt (1) from the belt pulley (2) of the air conditioning compressor (5) and put it aside.
Unlock plug connection (3) and disconnect.
Loosen screws (4) .
Detach the air conditioning compressor (5) and protect it from falling.

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Release the wiring harness mountings (1) .

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Loosen screws (1) .
Loosen screws (2) .
Guide out the left intake plenum and remove.

Courtesy of BMW OF NORTH AMERICA, INC.