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Home >> Porsche >> 2013 >> Panamera Base >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> 40 - Front Wheel Suspension, Drive Shafts -- PANAMERA (970) >> WM 401719 Removing And Installing Lower Trailing Arm (Except PANAMERA GTS, PANAMERA Turbo S, PANAMERA Platinum Ed., PANAMERA 4 Platinum Ed.) >> Removing Lower Trailing Arm >> Notes

Removing Lower Trailing Arm: Notes

WARNING: Wheel bearing housing raised incorrectly
  • Risk of squashing
  • Risk of damage to components

→ Wear personal protective gear.

→ Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).

Fig 1: Identifying Lower Trailing Arm
G09807275Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. On all-wheel drive vehicles, use a protective tube (shop-made) -1-  for the drive shafts.
    Fig 2: Identifying Protective Tube
    G09807276Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    Secure upper trailing arm with the spring compressor VW 552  (pre-tension slightly). This must be done immediately before loosening the spring strut from the lower trailing arm. This prevents damage to the ball joint on the upper trailing arm as a result of the weight of the wheel bearing housing.

    • Secure spring compressor VW 552 at the top. → Securing spring compressor on front axle, top 
      Fig 3: Securing Spring Compressor On Front Axle (Top)
      G09807277Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    • Secure spring compressor VW 552 at the bottom. → Securing spring compressor on front axle, bottom 
      Fig 4: Securing Spring Compressor On Front Axle (Bottom)
      G09807278Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  2. Remove fastening screw for lower spring strut.
    1. 2.1. Remove fastening screw for the lower spring strut -arrows-  .
      Fig 5: Locating Lower Spring-Strut Mount
      G09807279Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    2. 2.2. To do this, use a suitable lift -lift with rubber base-  (to prevent slipping) to raise the wheel carrier so that the screw can be unscrewed easily. (Secure spring compressor VW 552  to prevent it from falling down!).
      Fig 6: Raising Wheel Carrier
      G09807280Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  3. Loosen lock nut from the lower ball joint and press off using the ball joint puller T10187  .

    When doing this, leave lock nut flush on the ball pin so as not to damage thread. → Loosening lower trailing arm 

    Fig 7: Loosening Lower Trailing Arm
    G09807281Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  4. Mark eccentric screws for adjusting camber and caster on the chassis subframe (facilitates fitting during re-installation).
    Fig 8: Identifying Marking On Eccentric Screws
    G09807282Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  5. Loosen eccentric screws -1-  . Make sure not to damage the steering boot while doing this.
  6. Pull (press) trailing arm out of the chassis subframe mountings. -arrow- 
    Fig 9: Locating Eccentric Screws For Lower Trailing Arm
    G09807283Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  7. Loosen the lock nut from the lower trailing arm and tilt the trailing arm down fully.
  8. Carefully remove the ball joint from the wheel carrier.
  9. If you do not intend to use the trailing arm again, the air guide -1-  must be converted.
    Fig 10: Identifying Air Guide On Lower Trailing Arm
    G09807284Courtesy of PORSCHE CARS NORTH AMERICA, INC.