Car Problem Reports

BMW X5 Coolant Loss Due to Leak from Expansion Tank

 
BMW X5 Problem
23 Reports
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Model Years Affected: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008

Engines Affected: 3.0L 6 Cylinder, 4.4L V8, 4.8L V8

Average Mileage: 73,388 mi (10,400 mi - 155,000 mi)

Verified

An engine coolant leak may develop from the expansion tank resulting in engine overheating. When a cooling system component fails the entire cooling system should be inspected. It is not uncommon to find additional component have failed or are leaking.

Overheating can cause severe engine damage. If the engine begins to overheat it is recommended to stop at the first available location and have your vehicle towed to a repair shop.

  • Visitor, , 4.8L V8, 57,000 mi

    Expansion tank was cracked. I purchased a new one and installed myself (very easy) and solved the problem. If only all of the other fluid leaks on this car were this simple....

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  • Visitor, , 3.0L 6 Cylinder, 80,500 mi

    Vehicle lost all fluid instantly, luckily as I parked at my house. No overheating warning. It cost 625 to replace tank and do full coolant system test and service....at the dealer.

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  • Visitor, , 3.0L 6 Cylinder

    cracked expansion tank. replaced radiator and tank, $1000.

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  • Visitor, , 4.4L V8, 113,000 mi

    This is going to be my the 3rd expansion tank

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  • Visitor, , 4.8L V8, 51,000 mi

    Large crack. Dealer fixed for free.

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  • Visitor, , 3.0L 6 Cylinder, 60,000 mi

    Expansion tank cracked causing loss of coolant and subsequent overheating. Possible major engine damage.

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