Removing Engine

→ Avoid contact with hot parts or sources of ignition.

→ Use suction to remove ignitable vapours.

→ Attach warning sign in a clearly visible position.

→ Avoid contact with caustic fluid.

→ Wear personal protective gear.

→ Ensure that there is good ventilation.

→ If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

→ Do not spill fluids.

→ In the event of contact, wash the component or surface with water.

→ Replace components that are already damaged.

Information 

The slightly different illustrations between V8 and V6 show essentially the same actions.

Information 

• When lowering the engine, make sure that cables, hoses or lines are not trapped accidentally between the engine and body. To prevent this, a second person must make sure that the cables, hoses and lines do not get caught. 

1. Disconnect the engine wiring harness on the right-hand side of the vehicle. To do this, unclip, lift and disconnect the control unit. Disconnect the ground point.

   -arrows- 

   Fig 1: Locating Engine Wiring Harness

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Open the cover on the central electrical system on the left side of the vehicle. To do this, loosen the four Torx screws. -arrows- 
   Fig 2: Locating Torx Screws For Cover Of Central Electrical System

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Disconnect the two connectors for the engine wiring harness (white, red) inside the central electrical system. Undo the wiring harness from the retaining clips inside the plenum panel, remove it and lay it down on the engine.
   Fig 3: Identifying Engine Wiring Harness Cable Plug And Connectors

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4. Disconnect B+ transfer point at the left of the engine compartment. To do this, disconnect the two connecting cables -A and B-  for the engine. Unclip B+ cable -B-  out of the plastic holder at the bulkhead.
   Fig 4: Identifying B+ Transfer Points

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5. Disconnect the two coolant lines and the vacuum line on the right side of the engine compartment. -1 to 3-  Simply pull off vacuum line (hold line securely below the connection).
   Fig 5: Identifying Coolant Lines And Vacuum Line

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6. Disconnect the four oxygen sensor connectors (brown, black) at the body next to the spring strut dome on the right and unclip the cables from the supports. -1, 2, 3, and 4- 
   Fig 6: Identifying Oxygen Sensor Connectors

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7. Empty the servo oil reservoir with a syringe. Then remove the hose from the reservoir. Close the open connections with plugs.
   Fig 7: Removing Hose From Servo Oil Reservoir

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8. Disconnect fuel line -1-  and tank vent line from the carbon canister -2-  at the plenum panel splash panel. Unclip tank vent line at the plenum panel
   Fig 8: Identifying Tank Vent And Fuel Line

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9. Loosen the three fastening screws for the spring struts at the left and right -1-  . The screws are loosened from inside the engine compartment. Of the three screws per spring strut, one is in the plenum panel. The screws must not be reused.
   Fig 9: Removing Spring Strut Threaded Joint Screws

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10. Disconnect the coolant supply and return lines from the radiator. To do this, pull out the securing clip at the upper hose and pull off the connection -1-  . The clip should be fitted again immediately to avoid confusion. Undo bottom hose -2-  . To do this, undo spring band clamp and pull off hose.
    Fig 10: Identifying Coolant Hoses

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    Information 

    • The drive belt must be slackened so that the air-conditioning compressor can be removed later. 
    • If at all possible, the air-conditioning system should not be opened. 
11. Slacken the drive belt. To do this, screw a screw (M8 x 50) into the tensioner until the belt can be removed from the tensioning roller.
    Fig 11: Locating Drive Belt

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    Information 

    • In the case of vehicles with air suspension, the compressed air line on the spring strut must also be disconnected. Loosen the line carefully and allow the remaining pressure to escape. Loosen the threaded joint completely only when the line is fully depressurised. 
      Fig 12: Locating Compressed Air Line On Spring Strut

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    • The electric plug connection of the height sensor must be disconnected in vehicles with air suspension or automatic headlight levelling system. 
      Fig 13: Locating Electric Plug Connection

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12. Disconnect electric connector for the wear indicator -1-  . Then unclip the supports -2 and 3-  . Expose the cable. Disconnect and expose cable for ABS sensor.
    Fig 14: Locating Cable Guide Spring Strut 1

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    Fig 15: Locating Cable Guide Spring Strut 2

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13. Disconnect the brake lines in the wheel housings to the left and right.
    Fig 16: Locating Brake Lines In Wheel Housings

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14. Disconnect the ground point on the right side member. -arrow- 
    Fig 17: Locating Ground Point On Right Side Member

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15. Disconnect the ATF lines on the ATF thermostat . To do this, loosen the fastening screw (a/f 10) and pull the lines off. Seal open lines with plugs.
    Fig 18: Disconnecting ATF Lines On Radiator

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16. Disconnect the electric plug on the steering gear (Servotronic only). -arrow-  Figure shows right-hand drive vehicle.
    Fig 19: Locating Servotronic Cable Plug

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17. Remove the heat shield on the steering gear connection. To do this, loosen the two fastening screws -1 - figure shows right-hand drive vehicle-. 
    Fig 20: Identifying Heat Shield Bolt And Fastening Screws

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18. Loosen the clamping screw from the steering column on the steering gear and remove it -2-  . The screw must not be reused. Force the steering column up and off the steering gear.
19. Disconnect coolant hoses from the coolant pipes on the transmission . Approx. two litres of coolant will flow out when you do this. Close off coolant hoses.
    Fig 21: Locating Coolant Hoses On Transmission

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20. Detach exhaust system at the connection point between the centre silencer and the catalytic converters. To do this, undo both clamps -1-  and push toward the centre silencer. Replace clamps.
    Fig 22: Identifying Exhaust System Clamps

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21. Detach exhaust system for the engine at the body -2 and 3-  .
22. Remove rear cardan shaft → WM 393519 REMOVING AND INSTALLING REAR CARDAN SHAFT .
23. Detach heat shield on the right of the transmission. To do this, unscrew three fastening screws -arrows-  .
    Fig 23: Locating Heat Shield Screws

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24. Disconnect electric connections -1, 2 and 3-  on the transmission.
    Fig 24: Locating Transmission Electric Connections

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25. Detach heat shield via the cable plugs on the transfer box and disconnect cable plugs.
    Fig 25: Locating Transfer Box Connections

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26. Detach the selector lever cable on the transmission. To do this, press the ball socket away from the transmission. Then pull out top sheetmetal clip -A-  and remove the cable in an upward direction. -B- must not be loosened. 
    Fig 26: Removing Transmission Selector Lever Cable

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27. Disconnect the lower line on the servo oil cooler.
    Fig 27: Locating Servo Oil Cooler Lower Line Clamp

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28. Mark the installation position of the front-axle carrier diagonally on at least two places on the body using a felt-tip pen. This makes it easier to correctly position the front-axle carrier on the body during reinstallation.
    Fig 28: Marking Installation Position Of Front-Axle Carrier

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    Information 

    • Because of the high loosening torque, the six fastening screws on the front-axle carrier can already be loosened now. Loosen the screws by a maximum of one turn. 
29. Place the lifting platform under the engine and raise it. When you do this, ensure that the positioning guides of the lifting platform are inserted into the body.
    Fig 29: Lifting Platform Under Engine

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30. The -arrows-  show the mounting points for the mounting frame in the front-axle carrier (view from below here).
    Fig 30: Mounting Points For Front-Axle Carrier

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31. Position lifting platform in the front-axle carrier in the mounting points provided -(arrows)-, -4 into the body-  .
    Fig 31: Lifting Platform Front-Axle Carrier

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32. Secure the spring struts. To do this, turn the rubber discs upwards until they are set under the steering knuckles. Then tighten the retaining brackets on the wheel hub and lifting platform. -arrow- 
    Fig 32: Securing Spring Struts Using Tool

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33. Loosen transmission cross member. To do this, loosen the four fastening screws -A-  .
    Fig 33: Fastening Screws For Transmission Cross Member

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34. Secure the engine/transmission unit. Then secure the mounting mandrels on the engine transverse bar with the locking screws.
35. Loosen the four fastening screws on the front-axle carrier and the two fastening screws on the engine transverse bar.
    Fig 34: Locating Fastening Screws For Front-Axle Carrier And Engine Transverse Bar (Centre)

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36. Lower the lifting platform slowly by approx. 20 to 30 cm. When doing this, a second person should ensure that there is sufficient clearance around the engine compartment and spring struts in the wheel housings.

    Information 

    • It is easier to remove the air-conditioning compressor from its installation position when the engine has already been lowered a little. 
    • The air-conditioning compressor lines must not be kinked or twisted. 
37. Loosen power-steering pump. To do this, loosen the two front fastening screws and turn the belt pulley as required -A 2-  . Then loosen the rear fastening screw. -1- 
    Fig 35: Removing Hydraulic Pump

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38. Loosen the three fastening screws and disconnect the electric connector from the air-conditioning compressor. Set the air-conditioning compressor aside.
    Fig 36: Locating Air-Conditioning Compressor Electric Connector Fastening Screws

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39. The air-conditioning compressor must be secured with a piece of wire.
    Fig 37: Identifying Air-Conditioning Compressor

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    Information 

    • Before moving the lifting platform, mark the position of the wheels on the workshop floor with a piece of chalk. This makes it easier to position the platform again for re-installation. 
40. Lower the lifting platform fully. When doing this, a second person should ensure that there is sufficient clearance around the engine compartment and wheel housings.