Thread: 2003 e39 525i
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KNS KNS is offline
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Join Date: Jan 2004
Location: Docking Bay 94
Posts: 7,135
Very popular car. Cooling system is the biggest weakness, you'll want to replace the water pump, idler pulleys, belts, hoses , thermostat and expansion tank. Radiator as well as you get up towards 120,000miles. I have an '04 325i (same silky smooth engine), 144,000 miles, great car. The 525i is a little underpowered for the size, 530 is much better.
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Kurt

Last edited by KNS; 06-07-2013 at 08:27 PM..
Old 06-07-2013, 08:24 PM
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