2006 Infiniti FX35 Owner's Manual - Page 310

If the engine cooling system frequently requires coolant, have it checked by an INFINITI dealer. Improper servicing can result in reduced heater performance and engine overheating. WARNING To avoid the danger of being scalded, never change the coolant when the engine is hot. Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pressure fluid escaping from the radiator. Avoid direct skin contact with used coolant. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible. Keep coolant out of the reach of children and pets. SDI1525A VQ35DE engine 1. Open radiator drain plug B at the bottom of radiator, and remove radiator filler cap A . Be careful not to allow coolant to contact drive belts. CHANGING ENGINE COOLANT Major cooling system repairs should be performed by an INFINITI dealer. The service procedures can be found in the appropriate INFINITI Service Manual. VQ35DE 8-10 Maintenance and do-it-yourself