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Home >> Porsche >> 2021 >> Panamera Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (21 Exhaust Gas Turbocharging 4.0L Turbo Hybrid -- 971 - PANAMERA (971)) >> WM, 213019 Removing And Installing Turbocharger (V8 BITURBO) >> Removing Turbocharger

Removing Turbocharger

WARNING: This page is about a different variant/trim than selected.
NOTE: Dirt and contamination 
  • Risk of damage to units or components 

    → Protect components from dirt and contamination.

    → Clean or replace dirty components.

  1. To remove the left turbocharger, loosen the connecting clamp for the primary catalytic converter at the left.
  2. Turbocharger on right-hand side:  Disconnect vent line -1-  on the oil separator -2-  , pull off vacuum hose -3-  on the vacuum modulator and disconnect cable plug -4-  on the diverter valve.
  3. For replacing turbo chargers:  Separate positive crankcase ventilation hose.

    > 105255 REPLACING POSITIVE CRANKCASE VENTILATION HOSE (V8 BITURBO)

    G15879361Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Right turbocharger: Oil separator vent line, vacuum hose, cable plug on diverter valve

  4. Turbocharger on left-hand side:  Pull off vacuum hose -1-  on the vacuum modulator and disconnect cable plug -2-  on the diverter valve.
    G15879362Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Left turbocharger: Vacuum hose and cable plug on diverter valve

    Information 

    • Clean all line connections carefully and close them off or cover them. 
    • Use suitable stoppers for closing off lines. 
  5. Remove oil pipe -1-  supply line.
    1. 5.1 Unscrew screw -2-  at the front and remove screw using a bar magnet.
    2. 5.2 Unscrew rear screws -3-  .
    3. 5.3 Lift cover plates on the coolant lines using a wedge and pull them up -Arrows-  .
    4. 5.4 Disconnect oil pipes on the turbocharger. Collect escaping oil.
    5. 5.5 Disconnect oil pipe at the front. Collect escaping oil.
    6. 5.6 Replace O-rings. 
      G15879363Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Oil pipes supply line

  6. Disconnect front oil pipes return -1-  at the front.
    1. 6.1 Unscrew screw -2-  and remove it using a bar magnet.
    2. 6.2 First disconnect the line for the turbocharger on bank 1-4; the flange secures the line for the turbocharger on bank 5-8.
      G15879364Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Return oil pipes

  7. Unscrew screw for retainer plate for coolant lines -2 and 3-  at the rear.
    1. 7.1 Unscrew screws -1-  .
    2. 7.2 Remove retainer plate -4-  and disconnect coolant lines. Catch escaping coolant.
    3. 7.3 Replace O-rings. 
      G15879365Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Mounting for turbocharger coolant lines

  8. Loosen connecting clamp -1-  for the exhaust manifold.

    Tool: long socket-wrench insert (a/f 13) required! 

    1. 8.1 Unscrew hexagon nut -2-  on the connecting clamp.
      G15879366Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Connecting clamp securing turbocharger to exhaust manifold

  9. Remove turbocharger and carefully disconnect and close off the front oil pipe. Collect escaping oil.
    1. 9.1 Replace O-rings. 
  10. Replace gaskets -1- and connecting clamps -3- on the exhaust manifold -2-  .
    G15879367Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Exhaust manifold seals

  11. Carefully clean sealing faces, line connections and adjacent areas.
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