Lincoln 1999 Navigator Owner's Manual page 197

Maintenance and care
Cleaning the interior fabric
Remove dust and loose dirt with a whisk broom or a vacuum cleaner.
Remove fresh spots immediately. Do not use household or glass cleaners.
These agents can stain and discolor the fabric. Use a mild soap and
water solution if necessary.
Cleaning and maintaining the safety belts
Clean the safety belts with a mild soap solution recommended for
cleaning upholstery or carpets. Do not bleach or dye the belts, because
these actions may weaken the belt webbing.
Check the safety belt system periodically to make sure there are no
nicks, wear or cuts. If your vehicle has been involved in an accident,
refer to the Safety belt maintenance section in the Seating and safety
restraints chapter.
Cleaning leather seats
For routine cleaning, wipe the surface with a soft, damp cloth. For more
thorough cleaning, wipe the surface with a leather cleaner or a mild
soap.
The type of scrubbing pad is very critical because the common 3M
"Scotch Brite" green pad is too aggressive and will damage the
leather surface
• Spray a small amount of the leather cleaner on the pad and rub the
area to be cleaned with the pad using a circular motion. Only clean 1/4
of the area at a time. For heavily soiled areas, spray the cleaner
directly onto the leather (two squirts should be adequate) and rub
with the pad. Repeat if necessary.
• Use a soft, damp cloth to remove the loosened dirt and foam.
• Dry with a soft cloth.
Do not use household cleaners, glass cleaner, alcohol solutions or
cleaner intended for vinyl, rubber or plastics. These products can
damage the leather.
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