New Beetle L4-1.8L Turbo (BNU) (2005)
Checking piston
Special tools, testers and auxiliary items required
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External micrometer 75...100 mm
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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
Checking cylinder bores
Special tools, testers and auxiliary items required
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Internal dial gauge 50100 mm
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Take measurements at 3 positions in both lateral - A - and longitudinal - B - planes, as illustrated.
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Deviation from nominal dimension: max. 0.10 mm.
Note:
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Measurement of the cylinder bores must not be done when the cylinder block is mounted on a repair stand with holding fixture VW 540 and
spacers VW 540/1 B.
Piston with industrially fractured connecting rod
Note:
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When working on the engine, it should be secured to the holding fixture VW 540 with spacers VW 540/1 B to the assembly stand.