Lincoln Nautilus Manuals

Lincoln Nautilus: Starting and Stopping the Engine / Engine Block Heater

Engine Block Heater Precautions

WARNING: Failure to follow engine block heater instructions could result in property damage or serious personal injury.

WARNING: Do not use your heater with ungrounded electrical systems or two-pronged adapters. There is a risk of electrical shock.

WARNING: Do not fully close the hood, or allow it to drop under its own weight when using the engine block heater. This could damage the power cable and may cause an electrical short resulting in fire, injury and property damage.

We recommend that you do the following for a safe and correct operation:

  • Use a 16-gauge outdoor extension cord that is product certified by Underwriter’s Laboratory (UL) or Canadian Standards Association (CSA). This extension cord must be suitable for use outdoors, in cold temperatures, and be clearly marked Suitable for Use with Outdoor Appliances. Do not use an indoor extension cord outdoors. This could result in an electric shock or become a fire hazard.
  • Use as short an extension cord as possible.
  • Do not use multiple extension cords.
  • Make sure that when in operation, the extension cord plug and engine block heater cord plug connections are free and clear of water. This could cause an electric shock or fire.
  • If the engine block heater cord is under the hood, do not remove the wiring from its original location. Do not close the hood on the extension wiring.
  • Park your vehicle in a clean area, clear of combustible materials.
  • Firmly connect the engine block heater cord and the extension cord.
  • Check the extension cord for heat anywhere when the system has been operating for approximately 30 minutes.
  • Unplug and properly stow the system before starting and driving your vehicle. The protective cover seals the terminals of the engine block heater cord plug when not in use.
  • Check the engine block heater system for proper operation before winter.

How Does the Engine Block Heater Work

The engine block heater warms the engine coolant. This allows the climate control system to quickly respond. The equipment includes a heater element installed in the engine block and a wire harness. You can connect the system to a grounded 220-240 volt AC electrical source.

Note: The engine block heater is most effective when outdoor temperatures are below 0°F (-18°C).

Using the Engine Block Heater

Make sure the receptacle terminals are clean and dry prior to use. Clean them with a dry cloth if necessary.

The heater uses 0.4 to 1.0 kilowatt-hours of energy per hour of use. The system does not have a thermostat. It achieves maximum temperature after approximately three hours of operation. Using the engine block heater longer than three hours does not improve system performance and unnecessarily uses electricity.

    Starting the Engine

    Starting a Gasoline Engine Before starting your vehicle, check the following: Make sure that the headlamps and electrical accessories are off. Make sure that the parking brake is on...

    Stopping the Engine

    Stopping the Engine When Your Vehicle is Stationary Shift into park (P). Apply the parking brake. Wait until the engine reaches idle speed. Press the push button ignition switch...

    Other information:

    Lincoln Nautilus 2018-2024 Service Manual: Driver Side Footwell Air Discharge Temperature Sensor. Removal and Installation

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    Lincoln Nautilus 2018-2024 Service Manual: Automotive Audio Bus (AAB) Cable. Removal and Installation

    Removal Instrument panel cable NOTE: The original equipment automotive audio bus (AAB) cable is part of the instrument panel wiring harness and cannot be removed. This procedure refers to replacement of the cable only by overlaying the cable on the exisiting instrument panel harness...


    Programming the Garage Door Opener to Your Garage Door Opener Motor

    Lincoln Nautilus. Programming the Garage Door Opener to Your Garage Door Opener Motor

    Press the learn button on the garage door opener motor, you have 30 seconds to complete the next two steps. Return to your vehicle.

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