2004 HONDA Civic ex sedan(Auto) Timing belt

It depends on the exact engine model, some stress the timing belt more than others. Look in the user’s guide in the glove box.

100,000Km is a good number. Mine broke at 121,000 miles. You don’t want to put it off that long. I was lucky and the valves were not harmed even though the belt broke on the highway. Cost me an extra $200 that way for a flatbed truck and a day’s lost wages.

It’s also a good time to get the water pump replaced, it usually is pretty well worn at that mileage and you save at least $100 bucks labor as the pump is right there int he open once they have the timing belt and covers off.