S5 Quattro Coupe V8-4.2L (CAUA) (2009)
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Install power steering pump with the new O-ring on the power steering pump drive spur gear.
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Slide dust cap - arrow - with pre-installed hose clamp on the end of the spur gear shaft for the A/C compressor drive.
The rest of installation is in reverse order of removal, note the following:
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Install timing chain lower cover. Refer to => [ Lower Timing Chain Cover ] See: Timing Components/Timing Cover/Service and Repair/Lower
Timing Chain Cover.