A4 Sedan V6-3.2L (BKH) (2007)
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Remove pistons - 1 - from thrust plate - 2 -.
Check thrust plate - 2 -
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Check thrust plate running and sealing surfaces - arrow A - for wear.
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Check thrust plate running and sealing surfaces - arrow D - for wear.
‹› If running or sealing surfaces - arrow A - show grooves, scratches or scoring, thrust plate - 2 - must be replaced.
‹› If running or sealing surfaces - arrow D - show grooves, scratches or scoring, thrust plate - 2 - and pistons - 1 - must be replaced.
Checking pistons - 1 -
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Check seal - arrow B - on outer piston circumference - 1 - for damage.
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Check running surface - arrow C - on interior piston circumference - 1 - on shaft.
‹› If seal - arrow B - is damaged or piston running surface - arrow C - shows grooves, scratches, scoring or uneven thickness from wear, piston - 1 -
must be replaced.
Check Input Shaft Cylinder Running and Sealing Surfaces for Wear