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11 25 Pistons with Rings And Pins N54 B30

WARNING: This page is about a different car, the 2010 BMW X6, 2009 BMW X6, and 2008 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
PISTONS WITH RINGS AND PINS N54 B30-SPECIFICATION

Piston and pin are paired to each other - replace together only.
Measuring point "A" (position) mm 15
Piston diameter at measuring point "A"    
Original (new dimension) mm 83.967+0.004-0.009
Repair stage (new dimension) mm %
Oversize (new dimension) mm 84.217+0.004-0.009
Piston installation clearance (piston new) mm 0.000...0.034
Piston installation clearance (piston worn) mm 0.020...0.047
Permissible total wear tolerance between piston and cylinder (engine operated) mm 0.15


PISTONS WITH RINGS AND PINS N54 B30-SPECIFICATION

1st groove
End clearance mm 0.18...0.33
Axial play mm 0.020...0.060
2nd groove
End clearance mm 0.30...0.50
Axial play mm 0.020...0.060
3rd groove
End clearance mm cannot be measured
Axial play mm cannot be measured
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