Installing Motor

Information 

For tightening torques, tightening sequence and assembly overviews for the engine and transmission:

• Group 1: 

  → 1X00IN TECHNICAL VALUES

• Group 2: 

  → 2X00IN TECHNICAL VALUES

• Group 3: 

  → 3X00IN TECHNICAL VALUES

Information 

The pictures shown in this document may differ from the original.

Information 

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Adhesive tape markings on the workshop floor

• Before moving the unit elevating platform, mark the position of the wheels on the workshop floor with adhesive tape. This makes it easier to position the platform again for re-installation. 

1. Guide the engine in under the vehicle.
   1. 1.1 Move the engine under the vehicle using > VAS 6832 - Master Gear unit elevating platform  .
   2. 1.2 Position the unit elevating platform at the positions marked during removal.
   3. 1.3 Guide the engine up into the engine compartment using the lifting equipment.
2. Secure front-axle carrier.

   → WM, 400619 REMOVING AND REINSTALLING FRONT-AXLE CARRIER

   • Front-axle carrier to body -4-  : > Initial tightening 70 Nm (51.6 ftlb.) Final tightening + 180° 
   • V6 only:  - Front-axle carrier to body, rear -5-  : > Tightening torque 50 Nm (36.9 ftlb.) 
   • Anti-roll bar to body -6-  : > Initial tightening 70 Nm (51.6 ftlb.) Final tightening + 180° 

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   Front-axle carrier

3. Tighten screws for transmission support.

   → Initial tightening 25 Nm (19 ftlb.) 

   → Torque angle 90° 

4. Secure the strut -1-  .
   1. 4.1 Tighten screws.

      Strut and front-axle carrier -2-  : > Initial tightening 70 Nm (51.6 ftlb.) Final tightening + 180° 

      Strut to body -3-  : > Initial tightening 50 Nm (36.9 ftlb.) Final tightening + 45° 

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   Strut mounting

5. Remove wheel hub holder -1-  at both sides on the wheel hub.

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   Wheel hub holder (similar to illustration)

6. Secure the spring strut to the lower trailing arm -1-  .
   1. 6.1 Tighten screws -2-  .

      → Initial tightening 90 Nm (67 ftlb.) Final tightening + 120° 

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   Mounting for spring strut on lower trailing arm

7. Secure wheel bearing housing to the upper trailing arm -1-  .

   Hexagon nut, M12 -2-  : > Tightening torque 85 Nm (63 ftlb.) 

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   Mounting for upper trailing arm on wheel bearing housing

8. Secure the front brake calliper to the wheel carrier.

   > 473919 REMOVING AND INSTALLING FRONT BRAKE CALLIPER

   1. 8.1 Tighten screws.

      → Initial tightening 30 Nm (22.1 ftlb.) Final tightening torque angle + 90° 

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      Front brake calliper

9. Secure wire harness for wheel carrier.
   • Speed sensor to wheel bearing housing -1-  : > Tightening torque 8 (6 ftlb.)  Nm
   • Cable holder to wheel bearing housing -2-  : > Tightening torque 8 Nm (6 ftlb.) 
   • Brake line holder to wheel bearing housing -4-  : > Tightening torque 8 Nm (6 ftlb.) 

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   Wire harness for wheel carrier at the front

10. Secure universal joint on the steering gear.

    → 489055 REPLACING POWER-STEERING GEAR

    1. 10.1 Position universal joint and tighten new screw.

       → Initial tightening 20 Nm (15 ftlb.) 

       → Final tightening torque angle + 90° 

11. Only for vehicles with particle filter:  Connect cable plug -1-  for exhaust temperature sensor at the left and right and check that it is fitted securely.

    Shown on one side as an example.

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    Cable plug for exhaust temperature sensor

12. Secure coolant lines for heater -1 and 2-  .

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    Coolant lines for heating

13. Connect electric connector -1-  to the front-axle carrier -2-  at the front right.

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    Electric connector on front-axle carrier at the front right

14. Connect vacuum line for brake booster -1-  .

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    Brake booster vacuum line

15. Only for vehicles with particle filter:  Secure differential pressure sensors -2-  on struts at the side.
    1. 15.1 Position differential pressure sensors and secure with screws -1-  .

       → Tightening torque 8 Nm (6 ftlb.) 

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    Differential pressure sensors with holder

16. Secure electric lines to the diagonal brace at the right.

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    Electric lines on diagonal brace at the right

17. Connect tank vent line -1-  to tank vent line -2-  .

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    Tank vent line

18. Secure ground cable -1-  to the right spring strut dome.

    → Tightening torque 20 Nm (15 ftlb.) 

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    Ground point for right spring strut dome

19. Connect fuel supply line -1-  .

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    Fuel supply line

20. Connect coolant vent line -1-  .

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    Coolant vent line

21. Secure B+ line -1-  to the relay carrier -2-  .

    → WM, 9X00IN TECHNICAL VALUES

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    B+ line on relay carrier

22. Secure torque support to the engine.

    → 103719 REMOVING AND INSTALLING TORQUE SUPPORT 

    1. 22.1 Tighten screws.

       → Initial tightening 50 Nm (36.9 ftlb.) 

       → torque angle + 90° 

23. Connect electric connectors on the pressure sensor at the left and right to the throttle valve.
24. Secure electric line for horn.

    → WM, 905019 REMOVING AND INSTALLING HORN

    Information 

    • Replace O-rings on the cooling system. 
    • Clean plug connection and coolant hoses before assembly. 
    • Remove stoppers before fitting the coolant lines and hoses. 
25. Secure coolant line -1-  to the top of the radiator -2-  .
    1. 25.1 Fit circlip -3-  .

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    Coolant line at top of radiator

26. V8 biturbo: 

    Secure coolant line -1-  to the coolant pump -2-  .

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    Coolant line on coolant pump

27. Connect vacuum line -1-  to the valve cover.

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    Vacuum line for valve cover at the left

28. Connect air-conditioning line (high-pressure) -1-  in the engine compartment.

    → Tightening torque 12 Nm (9 ftlb.) 

    1. 28.1 Check O-rings and replace them if damaged.
    2. 28.2 Coat O-rings with refrigerant oil before fitting them.

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    Air-conditioning line in engine compartment

29. Connect air-conditioning line (low-pressure) -1-  in the engine compartment.

    → Tightening torque 12 Nm (9 ftlb.) 

    1. 29.1 Check O-rings and replace them if damaged.
    2. 29.2 Coat O-rings with refrigerant oil before fitting them.

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    Low-pressure air-conditioning line

30. Secure engine wire harness -1-  in the front left wheel housing.

    → WM, 970909 LOOSENING AND SECURING MAIN WIRE HARNESS IN ENGINE COMPARTMENT

    1. 30.1 Replace damaged holders/tie-wraps -arrows-  .

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    Engine wire harness - part 2

31. Secure engine wire harness -1-  in the front left wheel housing.

    → WM, 970909 LOOSENING AND SECURING MAIN WIRE HARNESS IN ENGINE COMPARTMENT

    1. 31.1 Replace damaged holders/tie-wraps -arrows-  .

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    Engine wire harness - part 1

32. Secure wire harness for steering gear -1-  .

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    Wire harness for steering gear

33. Only for PDCC: 

    Secure wire harness to the PDCC anti-roll bar control unit.

    → 407719 REMOVING AND INSTALLING FRONT ANTI-ROLL BAR (PDCC)

34. Connect electric lines -1, 2, 3 and 5-  in front left wheel housing/underbody.
    1. 34.1 Secure ground line -5-  with a hexagon nut -4-  .

       → Tightening torque 9 Nm (6.5 ftlb.) 

       Courtesy of PORSCHE CARS NORTH AMERICA, INC.

       Electric lines in front left wheel housing