2000-2005 Models

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2009 Honda S2000, 2008 Honda S2000, 2007 Honda S2000, 2006 Honda S2000, and 2005 Honda S2000. However, it is still accessible from the selected car via links, so may be relevant.

Drain the engine coolant (see COOLANT REPLACEMENT ).
Disconnect the radiator fan switch connector, then remove the radiator fan switch (A).

Fig 1: Radiator Fan Switch Connector With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the radiator fan switch with a new O-ring (B).
Refill the radiator with engine coolant, then bleed the air from the cooling system (see step 8 on COOLANT REPLACEMENT ).