A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
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Connecting Rod: Service and Repair
Piston and connecting rod, disassembling and assembling
Note: Oil spray jet and pressure relief valve
1. Connecting rod bolt, 30 Nm plus an additional 1/4 turn (90°)
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Replace
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Lubricate threads and contact surface
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Use old bolt to measure radial play
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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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Affiliation to cylinder mark - B -
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Installed location: Markings - A - point to belt pulley side
3. Bearing shells
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Upper bearing shell with oil hole for piston pin lubrication
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Installed location
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Do not interchange used bearings (mark)
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Axial play new: 0.10 to 0.35 mm Wear limit: 0.40 mm
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Measure radial clearance with Plastigage: New: 0.01 to 0.05 mm Wear limit: 0.12 mm. Do not turn crankshaft when checking radial clearance
4. Connecting rod
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Only replace as set
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Affiliation to cylinder mark - B -
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Installed location: Markings - A - point to belt pulley side
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With oil hole for piston pin lubrication
5. Circlip
6. Piston pin
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If difficult to move, heat piston to approximately 60° C
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Removing and installing using a drift VW 222 A
