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Lincoln Aviator 2020-2026 Owners Manual / Maintenance / Engine Coolant Check / Adding Coolant

Lincoln Aviator: Engine Coolant Check / Adding Coolant

WARNING: Do not add engine coolant when the engine is on or the cooling system is hot. Failure to follow this instruction could result in personal injury.

WARNING: Do not remove the coolant reservoir cap when the engine is on or the cooling system is hot. Wait 10 minutes for the cooling system to cool down. Cover the coolant reservoir cap with a thick cloth to prevent the possibility of scalding and slowly remove the cap. Failure to follow this instruction could result in personal injury.

WARNING: Do not put coolant in the windshield washer reservoir. If sprayed on the windshield, coolant could make it difficult to see through the windshield.

Note: Do not use stop leak pellets, cooling system sealants, or non-specified additives as they can cause damage to the engine cooling or heating systems. Resulting component damage may not be covered by the vehicle Warranty.

Note: Automotive fluids are not interchangeable.

It is very important to use prediluted coolant approved to the correct specification in order to avoid plugging the small passageways in the engine cooling system. Do not mix different colors or types of coolant in your vehicle. Mixing of engine coolants or using an incorrect coolant may harm the engine or cooling system components and may not be covered by the vehicle Warranty.

Note: If prediluted coolant is not available, use the approved concentrated coolant diluting it to 50/50 with distilled water. Using water that has not been deionised may contribute to deposit formation, corrosion and plugging of the small cooling system passageways.

Note: Coolants marketed for all makes and models may not be approved to our specifications and may cause damage to the cooling system. Resulting component damage may not be covered by the vehicle Warranty.

If the coolant level is at or below the minimum mark, add prediluted coolant immediately.

To top up the coolant level do the following:

  1. Unscrew the cap slowly. Any pressure escapes as you unscrew the cap.
  2. Add prediluted coolant approved to the correct specification.
  3. Add enough prediluted coolant to reach the correct level.
  4. Replace the coolant reservoir cap. Turn the cap clockwise until it contacts the hard stop.
  5. Check the coolant level in the coolant reservoir the next few times you drive your vehicle. If necessary, add enough prediluted engine coolant to bring the coolant level to the correct level. If you have to add more than 1.1 qt (1 L) of engine coolant per month, have your vehicle checked as soon as possible. Operating an engine with a low level of coolant can result in engine overheating and possible engine damage.

In case of emergency, you can add a large amount of water without engine coolant in order to reach a vehicle service location. In this instance, qualified personnel:

  1. Must drain the cooling system.
  2. Chemically clean the coolant system.
  3. Refill with engine coolant as soon as possible.

Water alone, without engine coolant, can cause engine damage from corrosion, overheating or freezing.

Do not use the following as a coolant substitute:

  • Alcohol.
  • Methanol.
  • Brine.
  • Any coolant mixed with alcohol or methanol antifreeze.

Alcohol and other liquids can cause engine damage from overheating or freezing.

Do not add extra inhibitors or additives to the coolant. These can be harmful and compromise the corrosion protection of the coolant.

    Engine Coolant Check

    WARNING: Do not remove the coolant reservoir cap when the engine is on or the cooling system is hot. Wait 10 minutes for the cooling system to cool down...

    Recycled Coolant. Severe Climates. Coolant Change

    Recycled Coolant We do not recommend the use of recycled coolant as an approved recycling process is not yet available. Note: Dispose of used coolant in the appropriate manner...

    Other information:

    Lincoln Aviator 2020-2026 Owners Manual: Reporting Safety Defects (Canada Only)


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    Lincoln Aviator 2020-2026 Service Manual: Diagnosis and Testing - Glass, Frames and Mechanisms


    Diagnostic Trouble Code (DTC) Chart Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).   Diagnostic Trouble Code Chart Module   DTC Description Action   DDM B1088:83 LIN Bus "B": Value of Signal Protection Calculation Incorrect   GO to Pinpoint Test A   DDM B1088:87 LIN Bus "B": Missing Message   GO to Pinpoint Test A   DDM B1189:77 Front Window Position Sensor: Commanded Position Not Reachable   GO to Pinpoint Test A   DDM B118A:77 Rear Window Position Sensor: Commanded Position Not Reachable   GO to Pinpoint Test C   DDM B118E:01 Left Front Window: General Electrical Failure   GO to Pinpoint Test A   DDM B1190:01 Left Rear Window: General Electrical Failure   GO to Pinpoint Test C   DDM B12DC:01 Front Window Motion/Position Sensor: General Electrical Failure   GO to Pinpoint Test A   DDM B12DC:92 Front Window Motion/Position Sensor: Performance or Incorrect Operation   GO to Pinpoint Test A   DDM B12DD:01 Rear Window Motion/Position Sensor: General Electrical Failure   GO to Pinpoint Test C   DDM B12DD:92 Rear Window Motion/Position Sensor: Performance or Incorrect Operation   GO to Pinpoint Test C   DDM B12E9:23 Rear Window Local Up/Down Switch: Signal Stuck Low   GO to Pinpoint Test C   DDM B13F0:01 Left Rear Power Window Motor: General Electrical Failure   GO to Pinpoint Test C   DDM B13F0:64 Left Rear Power Window Motor: Signal Plausibility Failure   GO to Pinpoint Test C   DDM B13F1:01 Driver Power Window Motor: General Electrical Failure   GO to Pinpoint Test A   DDM B13F1:64 Driver Power Window Motor: Signal Plausibility Failure   GO to Pinpoint Test A   DDM U2013:24 Switch Pack: Signal Stuck High   GO to Pinpoint Test A   PDM B1189:77 Front Window Position Sensor: Commanded Position Not Reachable   GO to Pinpoint Test B   PDM B118A:77 Rear Window Position Sensor: Commanded Position Not Reachable   GO to Pinpoint Test D   PDM B118F:01 Right Front Window: General Electrical Failure   GO to Pinpoint Test B   PDM B1191:01 Right Rear Window: General Electrical Failure   GO to Pinpoint Test D   PDM B12DC:01 Front Window Motion/Position Sensor: General Electrical Failure   GO to Pinpoint Test B   PDM B12DC:92 Front Window Motion/Position Sensor: Performance or Incorrect Operation   GO to Pinpoint Test B   PDM B12DD:01 Rear Window Motion/Position Sensor: General Electrical Failure   GO to Pinpoint Test D   PDM B12DD:92 Rear Window Motion/Position Sensor: Performance or Incorrect Operation   GO to Pinpoint Test D   PDM B12E9:23 Rear Window Local Up/Down Switch: Signal Stuck Low   GO to Pinpoint Test D   PDM B13E5:23 Passenger Power Window Switch Up: Signal Stuck Low   GO to Pinpoint Test B   PDM B13E6:23 Passenger Power Window Switch Down: Signal Stuck Low   GO to Pinpoint Test B   PDM B13EF:01 Right Rear Power Window Motor: General Electrical Failure   GO to Pinpoint Test D   PDM B13EF:64 Right Rear Power Window Motor: Signal Plausibility Failure   GO to Pinpoint Test D   PDM B13F2:01 Passenger Power Window Motor: General Electrical Failure   GO to Pinpoint Test B   PDM B13F2:64 Passenger Power Window Motor: Signal Plausibility Failure   GO to Pinpoint Test B Symptom Chart(s) Symptom Chart: Glass, Frames and Mechanisms Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices...

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    Adjusting the Steering Wheel - Vehicles With: Manual Adjustable Steering Column

    WARNING: Do not adjust the steering wheel when your vehicle is moving.

    Note: Make sure that you are sitting in the correct position.

    Unlock the steering column. Adjust the steering wheel to the desired position.

    Lincoln Aviator. Column

    Lock the steering column.

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