Nissan USA
Maintenance Photos:
Sentra SE-R Coolant Change

Rear bleeder cap Four caps and plugs must be removed in draining and bleedling the cooling system.  This is the rear bleeder, with the cap perched on the firewall ledge to the upper left.
Front bleeder plug The front bleeder plug is in the center of this image, to the upper right of the thermostat housing as indicated by the gold label.
Block drain plug The engine block drain plug is located on the front of the block between the dipstick and the exhaust manifold downpipe.  The coolant hose is removed for easier viewing.
Radiator drain plug The radiator drain plug is easy to find toward the passenger side. Use a big Phillips screwdriver.

Coolant Change Procedure
Rick's SE-Rious Procedures

Original material is the creation of Rick Zotz, 1999, 1998, 1997, and has been contributed to