A3 Quattro V6-3.2L (BUB) (2008)
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If tight, heat piston to 60 degree.
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Removing and installing using a drift VW 222.
7 -
Piston
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Mark installed location to connecting rod and affiliation to cylinder
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Shallow side of piston head faces cylinder block center
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Install using fitting tool T10147
8 -
Piston rings
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Compression rings
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Offset gaps by 120 degree
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Use piston ring pliers for removal and installation
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Mark "TOP" must face toward piston head
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Checking ring gap
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Check piston ring groove clearance
9 -
Piston ring
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Oil scraping ring
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3-part
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Install upper steel ring so gap is offset by 120° to neighboring compression ring
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Offset all oil scraping ring component gaps to each other
Installing piston with funnel T10147
Note: If a new funnel is used, next guide pistons with oil piston rings through funnel twice and remove resulting metal shavings if necessary. Only
then install piston with piston rings.
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Push piston by hand into oiled piston installation tool.
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Flat side of piston crown must face toward funnel pin -arrow-.
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Hold funnel (with piston inserted) on upper edge and press piston in with both thumbs.
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Push piston in until it protrudes approximately 15 mm from lower edge of funnel.
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Insert piston into appropriate cylinder bore.
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Funnel pin -arrow- must point toward center of cylinder block.
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Press funnel tightly against cylinder block and push piston in.