See also:

Second generation (2003–2006)
The Navigator was updated in 2003, along with the Ford Expedition, on the new Ford U platform. The interior was also substantially revised to bring it up to the level expected by luxury buyers. So ...

Engine coolant change record
Engine coolant change log ...

3.5L V6 EcoBoost™ engine
1. Engine coolant reservoir 2. Brake fluid reservoir 3. Battery 4. Power distribution box 5. Air filter assembly 6. Automatic transmission fluid dipstick (out of view) 7. Engine oil dips ...