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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (40 Wheel Suspension Front Drive Shaft 3.0L (Eng Code MDK.Kb) -- 992 - 911 CARRERA (992)) >> WM, 400919 Removing And Installing Front-Axle Cross Member >> Installing Front-Axle Cross Member

Installing Front-Axle Cross Member

WARNING: This page is about a different car, the 2024 Porsche 911, 2023 Porsche 911, and 2022 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install front-axle cross member.
    1. 1.1  Position front-axle cross member in installation position using > VAS 6931 - Transmission and Engine Jack  .
    2. 1.2  Tighten screws on the front-axle cross member in the sequence -4, 2, 3, 5-  .

      Threaded joint securing front-axle cross member to the body -4-  (stud): > Tightening torque 25 Nm (19 ftlb.) 

      Threaded joint securing front-axle cross member to the body -4-  (nut): > Initial tightening 70 Nm (52 ftlb.)  > Final tightening + 90° 

      Threaded joint securing vertical strut to front-axle cross member -2-  : > Tightening torque 30 Nm (22 ftlb.) 

      Threaded joint securing control arm with front-axle cross member to the body -3-  : > Initial tightening 70 Nm (52 ftlb.)  > Final tightening + 180° 

      Threaded joint securing front-axle cross member to the body -5-  : > Initial tightening 70 Nm (52 ftlb.) 

      Final tightening + 90° 

      Fig 1: Front-Axle Cross Member Screws Tightening Sequence
      G15526997Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Front-axle cross member

    3. 1.3  Fit longitudinal struts -1-  .
      Fig 2: Longitudinal Struts Screws Tightening Sequence
      G15526998Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Longitudinal struts

      1. 1.3.1  Tighten screws -2 to 4-  .

        Longitudinal strut with front-axle cross member to the body -2-  : > Tightening torque 100 Nm (74 ftlb.) 

        Longitudinal strut to body -3-  : > Tightening torque 100 Nm (74 ftlb.) 

        Longitudinal strut to body -4-  : > Tightening torque 40 Nm (30 ftlb.) 

  2. Applies only to all-wheel drive vehicles:  Fit bracket for all-wheel final drive -1-  on the front-axle cross member.
    G15526999Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Bracket for all-wheel final drive

    1. 2.1  Tighten studs -3-  . > Tightening torque 17 Nm (13 ftlb.) 
    2. 2.2  Unscrew nuts -2-  . > Initial tightening 30 Nm (22 ftlb.)  > Torque angle 90° 
  3. Secure wire harness at the right -1-  .
    G15527000Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Right wire harness

    1. 3.1 For TPM (Tyre Pressure Monitoring) 315 MHz (M-no. 7K4):  Secure wire harness in bracket -4-  .

      For TPM (Tyre Pressure Monitoring) 433 MHz (M-no. 7K3):  Secure wire harness in bracket -5-  .

    2. 3.2  Connect electric plug connection -2-  from the TPM control unit -3-  and lock it.
  4. Secure wire harness at the left -1-  .
    G15527001Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Left wire harness

    1. 4.1  Secure wire harness in brackets -3-  .
    2. 4.2  Connect and lock electric plug connection -2-  .
  5. Push on and lock electric plug connection -1-  from angle sensor for headlight beam adjustment on both sides of the vehicle.
    G15527002Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Electric plug connection

  6. Secure coolant lines -1-  and vent line -2-  on both sides of the vehicle at the connection point in front of the tunnel.
    G15527003Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Coolant lines/vent line (connection point in tunnel)

    1. 6.1  Push on and lock quick connectors -3 and 4-  .
  7. Secure wire harness in left wheel housing -1-  .
    G15527004Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Wire harness (connection point in wheel housing)

    1. 7.1  Connect and lock electric plug connection -4-  .
    2. 7.2  Secure electric plug connection and line -4-  in the brackets.
    3. 7.3  Connect and lock electric plug connection -3-  .
    4. 7.4  Secure electric plug connection -3-  in bracket.
    5. 7.5  Tighten nut -2-  on ground line. > Tightening torque 8 Nm (6 ftlb.) 
  8. Secure coolant lines -1-  and vent line -2-  on both sides of the vehicle at the connection point in the wheel housing.
    G15527005Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Coolant lines/vent line (connection point in wheel housing)

    1. 8.1  Push on and lock quick connectors -5 and 6-  .
    2. 8.2  Fit holder -3-  and tighten screw -4-  . > Tightening torque 8 Nm (6 ftlb.) 
  9. Applies only to all-wheel drive vehicles:  Fit coolant lines -1-  on the all-wheel final drive.
    G15527006Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Coolant lines for all-wheel final drive

    1. 9.1  Push on and lock quick connectors -2-  .
  10. Fit restraining straps -1-  .
    G15527007Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Restraining straps

    1. 10.1  Engage restraining straps on the front-axle cross member -5-  .
    2. 10.2  Tighten the screws -2-  .

      Vehicles with all-wheel drive: > Tightening torque 23 Nm (17 ftlb.) 

      Vehicles without all-wheel drive: > Tightening torque 23 Nm (17 ftlb.) 

    3. 10.3 Applies only to all-wheel drive vehicles:  Push on and lock electric plug connection -4-  on additional coolant pump.
    4. 10.4 Applies only to all-wheel drive vehicles:  Secure bracket -3-  for electric wire harness.
  11. Check that the steering column pin is offset. The center position marking on the sensor cover -1-  must be aligned with the marking on the protection cap -2-  .
    G15527008Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Power-steering gear in center position

  12. Fit bottom joint -1-  on power-steering gear -2-  .
    G15527009Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Bottom joint on power-steering gear

    1. 12.1  Tighten screw -3-  . > Pre-tightening 20 Nm (14.8 ftlb.)  > Final tightening + 90° 
  13. Fit connecting link for anti-roll bar -1-  on both sides of the vehicle on the anti-roll bar.
    G15527010Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Mounting for connecting link

    G15527011Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Mounting for connecting link for anti-roll bar (PDCC)

    1. 13.1  Tighten nut -2-  .

      Conventional anti-roll bar: > Initial tightening 40 Nm (29.5 ftlb.)  > Final tightening + 30° 

      PDCC anti-roll bar: > Initial tightening 50 Nm (37 ftlb.)  > Final tightening + 50° 

  14. Fit lower trailing arm -1-  on the wheel bearing housing.
    G15527012Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Mounting for lower trailing arm on wheel bearing housing

    1. 14.1  Tighten nut -2-  . > Tightening torque 100 Nm (74 ftlb.) 
    2. 14.2  Seal the threaded joint securing lower trailing arm to wheel bearing housing with wax as shown in -Illustration-  . Use Pfinder AP14/4 for this.
      G15527013Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Applying wax on marked area

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