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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine - Technical Data (N54) -- Z4_E89) >> Pistons With Rings And Pins N54 (2 Of 2) >> 11 25 Pistons with Rings and Pins N54

11 25 Pistons with Rings and Pins N54

WARNING: This page is about a different variant/trim than selected.
PISTONS WITH RINGS AND PINS 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 83.95... 83.97
Repair stage (new dimension) mm %
Oversize (new dimension) mm 84.20...84.22
Piston installation clearance (piston new) mm 0.00...0.03
Piston installation clearance (piston worn) mm 0.02...0.08
Permissible total wear tolerance between piston and cylinder (engine operated) mm 0.15