A8L Quattro Sedan W12-6.0L (BSB) (2005)
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The surface of the piston and seal must only be cleaned with mineral spirits and then dried.
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Thinly coat piston and seal with lithium grease (G 052 150 A2) before inserting.
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Insert oil seal in brake caliper housing.
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Install protective cap on piston.
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Push piston into brake caliper housing using constant pressure.