If the strut is the same part for the 3.0 as its for the 4.4 then i dont think the spring is an different. should be all the same. I dont see why the design of our x5 be diff. unless its with air susp.

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2006 BMW X5 (4.4i) N62

MY BMW X5... No matter how I disguise it... it's heritage keeps showing through!