Lincoln Nautilus Manuals

Lincoln Nautilus: Power Brake Actuation / Brake Booster. Removal and Installation


NOTICE: Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.

NOTE: Removal steps in this procedure may contain installation details.

  1. Remove the battery tray. Refer to: Battery Tray (414-01 Battery, Mounting and Cables, Removal and Installation).
  1. Remove the nut, bolt and the battery tray support bracket.
    Torque: 18 lb.ft (24 Nm)
  1. Detach the check valve from the brake booster.
  1. Disconnect the brake fluid level sensor and detach the wiring retainer.
  1. NOTE: Make sure that the master cylinder-to-booster seal is removed with the master cylinder.

    Disconnect the brake tube fittings, remove the nuts and remove the brake master cylinder and brake tubes as an assembly. Discard the nuts and O-ring seal.
       1.:   21 lb.ft (28 Nm)
       2.:   18 lb.ft (25 Nm)
  1. Remove the nuts, disconnect the electrical connector and remove the LH insulator panel.
  1. NOTICE: Do not service the brake pedal or brake booster without first removing the stoplamp switch. This switch must be removed with the brake pedal in the at-rest position. The switch plunger must be compressed for the switch to rotate in the bracket. Attempting to remove the switch when the plunger is extended (during pedal apply) will result in damage to the switch.

    Remove the stoplamp switch.
    Refer to: Stoplamp Switch (417-01 Exterior Lighting, Removal and Installation).
  1. Compress the tabs and remove the clevis pin. Discard the pin.
  1. Remove and discard the nuts.
    Torque: 17 lb.ft (23 Nm)
  1. Disconnect the brake booster vacuum sensor electrical connector.
  1. Remove the brake booster.


  1. NOTICE: Do not press, pull or otherwise move the brake pedal while installing the stoplamp switch. The switch must be installed with the booster push rod attached to the brake pedal and with the brake pedal in the at-rest position. Installing the switch with the brake pedal in any other position will result in incorrect adjustment and may damage the switch.

    To install, reverse the removal procedure.
  1. Bleed the brake system.
    Refer to: Brake System Pressure Bleeding (206-00 Brake System - General Information, General Procedures).

    Power Brake Actuation


    Brake Vacuum Pump - 2.7L EcoBoost (238kW/324PS). Removal and Installation

    Materials Name Specification Motorcraft® High Performance Engine RTV SiliconeTA-357 WSE-M4G323-A6  Motorcraft® Silicone Gasket RemoverZC-30-A, AZC-30-C -  Motorcraft® Metal Surface Prep WipesZC-31-B -  Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B, APM-4-C -  Removal NOTE: Removal steps in this procedure may contain inst..

    Other information:

    Lincoln Nautilus 2018-2022 Owners Manual: Brake Precautions. Anti-Lock Braking System. Brake Over Accelerator. Locating the Brake Fluid Reservoir

    Brake Precautions WARNING: Driving your vehicle with the warning lamp on is dangerous. A significant decrease in braking performance may occur. It may take you longer to stop your vehicle. Have your vehicle checked as soon as possible. Driving extended distances with the parking brake engaged can cause brake failure and the risk of personal injury. Wet brakes result in reduced braking eff..

    Lincoln Nautilus 2018-2022 Owners Manual: Using the Keyless Entry Keypad

    Unlocking the Doors Enter the factory-set five-digit code or your personal code. You must press each number within five seconds of each other. Press 3-4 within five seconds to unlock all doors. Locking the Doors Press and hold 7·8 and 9·0 at the same time with the driver door closed. Note: You do not need to enter the code first. Keyless Entry Keypad – Troubleshooting Keyless Entry ..


    Parking Aid Indicators. Parking Aids – Troubleshooting

    Parking Aid Indicators

    Lincoln Nautilus. Parking Aid Indicators. Parking Aids – Troubleshooting

    The system provides object distance indication through the information and entertainment display.

    As the distance to the object decreases, the indicator waves and the lines move toward the vehicle icon. If there is no object detected, the distance indicator lines are grey.

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