This is the standard ride height factory rear spring. They are sold individually. The factory springs have a tendency to break over time. These springs will restore your ride back to the stock ride height.
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The front springs on the 2004-2010 E83 X3 models have a chronic broken spring problem. If it hasn't happened to you yet it will. Springs are nothing more than exposed steel and they rust easily. After a while a section of the spring actually breaks off. Typically the X3 was popular in markets with heavy salt and moisture anyway and water can pool in the bottom spring pad.
A broken spring is very dangerous - the spring is no longer mounted correctly in the suspension and it cannot support the weight of the car, especially when cornering. The ride also suffers as the suspension is no longer able to absorb the bumps and impacts from the road. Aside from a visual inspection of the spring itself you might notice a clunking sound or banging noise coming from the front or rear. An inspection of the noise should also include other related items in the suspension: bushings, ball joints, links, mounts, etc. We also recommend replacing the rubber spring pads on the top and bottom of the spring because they lose their shape over time.
The factory BMW springs sell for $200+ each. These are the same height as the stock replacement BMW springs which makes them a direct replacement.
Sold only as a pair.
This item fits the following BMWs: 2004-2010 E83 BMW X3 2.5i X3 3.0i X3 3.0si NOT for cars with sport suspension
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