Mercury 1999 Villager Owner's Manual page 180

Roadside emergencies
Temporary spare tire information
Your vehicle may have a temporary or conventional size spare tire. The
temporary spare tire for your vehicle is labeled as such. It is smaller than
a regular tire and is designed for emergency use only. Replace this tire
with a full-size tire as soon as possible.
If you use the temporary spare tire continuously or do not follow
these precautions, the tire could fail, causing you to lose control
of the vehicle, possibly injuring yourself or others.
When driving with the temporary spare tire do not:
exceed 80 km/h (50 mph) under any circumstances
load the vehicle beyond maximum vehicle load rating listed on the
Safety Compliance Label
tow a trailer
use tire chains
drive through an automatic car wash, because of the vehicle's reduced
ground clearance
try to repair the temporary spare tire or remove it from its wheel
use the wheel for any other type of vehicle
Location of the spare tire and tools
The spare tire and tools for your vehicle are stowed in the following
locations:
Item
Spare tire
Jack assembly
Removing the jack and tools
1. Lift the 3rd row seat cushion.
2. Remove the jack assembly from the bag under the seat.
180
Location
Under the vehicle, just forward of
the rear bumper
Under the third row bench seat in
the tool bag