A3 Quattro V6-3.2L (CBRA) (2009)
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It should no longer be possible to remove protective seal from brake caliper housing by hand.
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Thinly coat piston and seal with lithium grease ( G 052 150 A2) before inserting.
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Lift brake piston, as shown, with commercially available extension and ratchet adapter and lightly press against protective seal.
Do not angle piston, to avoid damaging seal sleeve.
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Blow protective seal on with pressurized air (max. 3 bar). The protective seal will thereby jump over brake piston.
Use protective backings
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Press piston into brake caliper housing by hand.
‹› The inner sealing lip of the protective seal thereby slips into the groove on the piston.