A6 V6-3.0L (AVK) (2004)
Fig. 4 Checking cylinder bore
Special Tools and Equipment
Inner bore gauge 50 - 100 mm
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Measure diagonally at 3 positions horizontally -A- and lengthwise -B-.
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Deviation from nominal dimension: max. 0.08 mm
Specified dimension piston and cylinder measurements, Refer to Piston, Engine, Service and Repair.
Fig. 5 Installed position and allocation piston/cylinder
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Mark installed position and allocation to cylinder on piston head using chalk or waterproof felt pen.
Note: Do not use a center punch or scribe, since the piston head coating will be damaged.
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Installation position: Arrow on piston head points to belt pulley side
Fig. 6 Marking connecting rod