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Home >> Porsche >> 2008 >> Cayenne Base, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.) >> 97 - Cables >> WM 970955 Sub-Part - Replacing Wire Harness In Engine Compartment At The Front Right (All Models) >> Sub-Part - Removing Wire Harness In Engine Compartment At The Front Right

Sub-Part - Removing Wire Harness In Engine Compartment At The Front Right

Fig 1: Identifying Installation Position Of Sub-Part - Wire Harness In Front Right Of Engine Compartment
G09416070Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. 1 - Airbag sensor connector, right
  2. 2 - Ground strap for front right cross member
  3. 3-4 - Plug connections for front right wire harness
  4. 5 - Bulb socket for right direction indicator
  5. 6 - Connector for right headlight
  6. 7 - Transmitter (trigger) for TPM, right
  7. 8 - Connector for angle sensor for range adjustment, right
  8. 9 - Plug connection for tank for windscreen washer system
  9. 10 - Plug connection for ABS sensor and brake pad wear indicator, right
  10. 11 - Connector for lateral acceleration sensor, right
  11. 12 - Connector for coolant expansion tank
  12. 13 - Ground strap for right firewall
  13. 14 - Connector for hydraulic unit
  14. 15 - Rubber sleeve
  1. Remove fabric tape and tie-wraps in area -a-  (above cut-out for fresh-air intake system for heater/air-conditioning unit) and expose the remaining lines.
    Fig 2: Cutting Off And Exposing Front Right Wire Harness
    G09416071Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    When cutting the front wire harness, make sure there is enough length of cable left to join to the new lines.

  2. Cut off front right wire harness in area -b-  (left, next to cut-out for fresh-air intake system for heater/air-conditioning unit).
  3. Remove support for DME control unit.
    1. 3.1. Screw off fastening nut -1-  and remove the ground straps together with the twist lock -arrow-  .
      Fig 3: Loosening Ground Straps
      G09416072Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    2. 3.2. Open retaining clip -arrow A-  and remove wire harness for DME control unit -arrow B-  .
      Fig 4: Removing DME Control Unit Support
      G09416073Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    3. 3.3. Unscrew fastening screw -2-  and the two fastening nuts -3-  and remove support for DME control unit -arrow-  .
  4. Remove intake manifold for heater/air-conditioning unit.
    1. 4.1. Pull out retaining clip on wire harness at the intake manifold -arrow A-  and unclip wire harness on the intake manifold -arrow B-  .
    2. 4.2. Pull out air inlet grille -arrow C-  .
    3. 4.3. Open retaining clips in the intake manifold -arrow D-  .
    4. 4.4. Screw off fastening nuts -1-  and remove intake manifold -arrow-  .
      Fig 5: Removing Intake Manifold For Heater/Air-Conditioning Unit
      G09416074Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  5. Remove right firewall.
    Fig 6: Removing Firewall
    G09416075Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 5.1. Remove oxygen sensor connector -1-  from the support at the firewall and disconnect it. → Removing Oxygen Sensor Ahead Of Catalytic Converter → Removing Oxygen Sensor Behind Catalytic Converter
    2. 5.2. Unclip wire harness at the retaining clip -2-  .
    3. 5.3. Unscrew fastening screws -3-  on the firewall.
    4. 5.4. Lift the firewall and seal up and off.
  6. Release connector on airbag sensor at the right -1-  and pull it off. → Removing Airbag Sensor
  7. Loosen ground strap for front right cross member -2-  .
    Fig 7: Loosening Ground Strap For Front Right Cross Member
    G09416076Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 7.1. Screw off fastening nut on front cross member and remove ground straps together with the twist lock from the threaded bolt -arrow A-  .
    2. 7.2. Unclip wire harness at the retaining clip -arrow B-  .
  8. Unclip wire harness at the retaining clips close to the mounting for the right headlight -arrows-  .
    Fig 8: Unclipping Wire Harness Close To Mounting For Right Headlight
    G09416077Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  9. Release connector on TPM transmitter (trigger) at the right -7-  and pull it off. → Removing Transmitter (Trigger) For Tyre Pressure Monitoring (TPM)
  10. Pull off connector on angle sensor for range adjustment -8-  .
    Fig 9: Pulling Off Angle Sensor Connector For Range Adjustment
    G09416078Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 10.1. Release connector on angle sensor for range adjustment at the right wheel suspension -arrows A-  and pull it off -arrow B-  .
  11. Release plug connection on tank for windscreen washer system -9-  and disconnect it. → Removing Reservoir For Windscreen Washer System
  12. Pull off plug connection for ABS sensor and brake pad wear indicator on the right -10-  .
    Fig 10: Pulling Off Plug Connection For ABS Sensor And Brake Pad Wear Indicator
    G09416079Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 12.1. Release plug connection for ABS sensor and brake pad wear indicator in the right wheel housing -arrow A-  and pull it off -arrow B-  .
    2. 12.2. Unclip connector socket for ABS sensor and brake pad wear indicator -arrow C-  .
    3. 12.3. Unclip wire harness at the three retaining clips -arrow D-  .
  13. Pull off connector on right lateral acceleration sensor -11-  .
    Fig 11: Pulling Off Connector On Lateral Acceleration Sensor
    G09416080Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 13.1. Release connector on lateral acceleration sensor in the right wheel housing -arrow A-  and pull it off -arrow B-  .
    2. 13.2. Unclip wire harness at the retaining clip -arrow C-  .
  14. Loosen wire harness on upper right side member.
    1. 14.1. Pull wire harness on upper side member down out of the clips -arrows A-  .
    2. 14.2. Unclip wire harness at the retaining clips -arrows B-  .
      Fig 12: Loosening Upper Right Side Member Wire Harness
      G09416081Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  15. Unclip wire harness with the retaining clip on the upper side member -arrow-  .
    Fig 13: Unclipping Upper Side Member Wire Harness
    G09416082Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  16. Loosen ground strap for right firewall -13-  .
    Fig 14: Loosening Ground Strap
    G09416083Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 16.1. Screw off fastening nut on the right firewall and remove ground strap together with the twist lock from the threaded bolt -arrow-  .
  17. Unclip wire harness at the retaining clip -arrow A-  and remove rubber sleeve from the bulkhead -arrow B-  .
    Fig 15: Removing Rubber Sleeve From Bulkhead
    G09416084Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  18. Pull off connector on hydraulic unit -14-  and remove rubber sleeve -15-  .
    Fig 16: Pulling Off Hydraulic Unit Connector
    G09416085Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 18.1. Release connector on hydraulic unit -arrow A-  and pull it off -arrow B-  .
    2. 18.2. Unclip wire harness at the three retaining clips -arrows C-  .
    3. 18.3. Remove rubber sleeve on the right firewall in direction of the engine compartment -arrow D-  and remove the front right wire harness.
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