Passat L4-1.8L Turbo (AWM) (2004)
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Piston: Service and Repair
Pistons and connecting rods, disassembling and assembling
1- Piston rings
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Shift by 120°
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Use piston ring pliers to remove and install
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Marking "TOP" faces piston head
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Check end play see Fig. 1
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Check height play see Fig. 2
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2 part or 3 part oil scraper ring, mixed construction is permitted
2- Pistons
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Checking see Fig. 3
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Mark installation position and matching cylinder
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Arrow on piston head points to belt pulley side
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Install with piston ring tension strip
3- Piston pins
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In case of difficulty of movement, warm piston To 60°C.
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When removing and installing, use VW222a Pilot drift
4- Snap ring
5- Connecting rod
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Replace only as a set
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Mark to indicate which cylinder corresponds to each cover -B
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Installation position: Markings -A point to belt pulley side
6- Bearing shell
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Note installed position see Fig. 4
