A4 Sedan V6-3.2L (BKH) (2007)
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Thinly coat the piston and seal with lithium grease (G 052 150 A2) before inserting.
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Insert the oil seal in the brake caliper housing.
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Place the protective seal onto piston.
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Using equal pressure, push the piston into the brake caliper housing.
The protective seal should locate securely in the piston groove. If not, use piston resetting tool (T10145) to push piston in further.