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Old 12-16-2008, 12:04 AM
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When's a good time to replace belts/hoses?

Well, our 2002 X5 3.0i has been a workhorse throughout the years, has never failed us and we'd like to keep it that way. We just crossed the 89K mile threshold with original belts and hoses. Is it time to replace them or can we keep going for a while? I've noticed that there are a bunch of smaller hoses besides the usual upper/lower main hoses - should the smaller ones be replaced as well or am I asking for trouble? I have a great Indy in my area and just want to be sure what belts/hoses should be replaced before I bring her in and they go nuts replacing everything if it's not necessary.
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Old 12-16-2008, 12:18 AM
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Just about all of the hoses have plastic ends, which is how I judge when to change for preventative maintenance. When the hose part gets old/weak, coolant will start seeping out of the ends past the clamps leaving a white residue. And when the plastic ends get old/weaker, they start changing color to more of a brownish color.

The belt, just look for when the ribs are cracking. The main drive belt usually starts going well before the ac belt.
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