Astra L4-1.8L (2009)
5. Remove the steering knuckle from the string strut.
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Remove the 2 bolted connections (2).
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Tilt the steering knuckle towards the outside.
Note:
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Before removing retaining ring, hold spring strut.
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The retaining ring cannot be removed without being destroyed and must be replaced during installation.
6. Remove the retaining ring (1) with suitable tool.