Passat Sedan L4-1781cc 1.8L Turbo (AEB) (1999)
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Clean groove before check.
Fig. 3 Checking piston
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Measure pistons approx. 10 mm from lower edge of skirt, at 90° to piston pin axis.
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Deviation from nominal dimension: max. 0.04 mm
Fig. 4 Checking cylinder bores
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Measure bores at 3 locations in both directions -A- across engine and -B- in line with crankshaft. Use internal dial gauge 50 to 100 mm.
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Deviation from nominal dimension: max. 0.08 mm
Note: Measuring the cylinder bores must not be done when the cylinder block is mounted on a repair stand with holding fixture VW 540, as incorrect
measurements would then be possible.