Removing Steering Gear

Fig 1: Identifying Steering Gear (1 Of 2)

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Fig 2: Identifying Steering Gear (2 Of 2)

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Information 

• Fix steering wheel with wheels in straight-ahead position (engage steering column lock or clamp steering wheel in centre position with steering wheel holder). If this is not done, the airbag contact unit will have to be put in the centre position after installation of the steering gear →  945019 REMOVING AND INSTALLING STEERING COLUMN SWITCH  . 
• Before the feed and return lines are loosened, place a suitable container underneath to collect steering fluid. 
• Wear protective goggles and gloves. 

1. Remove the outer tie rod joints with the ball joint puller T10187.  When pressing out, screw lock nut on flush (protects the ball joint thread).
   Fig 3: Removing Outer Tie Rod Joints Using Ball Joint Puller (T10187)

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2. Remove the fastening screws from the heat shield (steering gear/steering shaft). If the vehicle is a Cayenne with Servotronic, pull off the connector.
   Fig 4: Locating Fastening Screws

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3. Remove fastening screw from the universal joint of the steering shaft (push universal joint slightly upwards).
   Fig 5: Locating Universal Joint Of Steering Shaft

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4. Remove the -Heat Shield-  for the rear transmission mount.
   Fig 6: Locating Heat Shield For Rear Transmission Mount

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5. Release rear mount of front-axle drive (right-hand side of vehicle). Lift the front axle drive with a suitable jack (use a wooden block or rubber base to prevent slipping). Remove fastening screw and lift the front-axle final drive just enough to access the bearing eye above the bolting point of the front axle carrier (do not press the cardan shaft into the stop).
   Fig 7: Lifting Front Axle Drive Using Suitable Jack

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6. Re-insert the fastening screw (better access). The drive remains in the raised position and the jack can be removed.
   Fig 8: Locating Fastening Screw

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7. Release the supply and return lines (collect steering fluid in a suitable container). Close off the lines and any open threaded bores with suitable stoppers.
   Fig 9: Locating Supply And Return Lines

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8. Remove the fastening screws on the steering gear.
   Fig 10: Locating Fastening Screws On Steering Gear

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9. For easier removal of the steering gear, loosen the fastening nut on the coolant hoses. Then unclip coolant hoses from brackets and lay them upwards(cut-away view of steering gear shown here).
   Fig 11: Loosening Fastening Nut On Coolant Hoses

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10. Remove heat shield for the right steering boot.
11. Push the steering gear -siehe illustration-  to the right, out of the sub-frame mounting points, and turn it to the rear.
    Fig 12: Pushing Steering Gear

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12. Turn the steering gear to the rear by approx. 90-100 degrees.
    Fig 13: Turning Steering Gear

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13. Unclip the coolant hoses in the wheel housing from the fastening clip. Then, carefully push the steering gear to the right and remove it by pulling it down through the chassis sub-frame.