2005 Mercury Montego Owner's Manuals

Page 225 of 264

Mercury Montego 2005  Owners Manuals 1. Before you begin, turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the coolant reservoir (an opaque plastic bottle).
Slo

Page 226 of 264

Mercury Montego 2005  Owners Manuals 8. Add coolant/water mixture
through the thermostat housing
opening until full at housing
opening.
9. Install the thermostat housing
bleed plug. Install metal pin by
pushing into the slot.
After any c

Page 227 of 264

Mercury Montego 2005  Owners Manuals If you have to add more than 1.0 quart (1.0 liter) of engine coolant per
month, have your dealer check the engine cooling system. Your cooling
system may have a leak. Operating an engine with a low le

Page 228 of 264

Mercury Montego 2005  Owners Manuals •Decreased engine coolant concentrations below 40% will
decrease the freeze protection characteristics of the engine
coolant and may cause engine damage.
•Refer to the chart on the coolant contain

Page 229 of 264

Mercury Montego 2005  Owners Manuals Observe the following guidelines when handling automotive fuel:
•Extinguish all smoking materials
and any open flames before
refueling your vehicle.
•Always turn off the vehicle before
refueling.

Page 230 of 264

Mercury Montego 2005  Owners Manuals Refueling
Fuel vapor burns violently and a fuel fire can cause severe
injuries. To help avoid injuries to you and others:
•Read and follow all the instructions on the pump island;
•Turn off your e

Page 231 of 264

Mercury Montego 2005  Owners Manuals If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
co

Page 232 of 264

Mercury Montego 2005  Owners Manuals with the recommended octane rating, see your dealer or a qualified
service technician to prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability