S4 Quattro Cabriolet V8-4.2L (BHF) (2008)
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Piston: Locations
Piston and connecting rod, component overview
Note:
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Oil injector jet for piston cooling
1 - Connecting rod bolt - 30 Nm plus an additional 1/4 turn (90 degrees)
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Replace
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Lubricate threads and contact surface
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Tighten to 30 Nm to measure radial play, do not turn further
2 - Connecting rod bearing cap
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Do not interchange
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Mark allocation to cylinder using a color marker -B-
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When installing bearing cap, observe: The wide thrust flange -A- must point to same side on connecting rod and connecting rod bearing cap
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Installation position of connecting rod pairs
3 - Bearing shells
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Check that retaining tabs are secured
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Do not interchange used bearing shells (mark, but not on running surface)
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Radial clearance, measuring
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Over-sized bearings are available for reworked crankshaft connecting rod journals
4 - Connecting rod
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Only replace as set
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Mark allocation to cylinder with paint -B-
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When installing bearing cap, observe: The wide thrust flange -A- must point to the same side on connecting rod and connecting rod bearing cap
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Installation position of connecting rod pairs
