Operation CHARM: Car repair manuals for everyone.

Piston Measurements

M54 2.5L/3.0L Piston
Piston and Pin are a matched set only replace together -- --
Measuring point "A" (position is 90 degs. to pin from lower edge of skirt) mm 8
STD.
From point "A".
mm 83.995
(+/- 0.014)
1st oversize
Only permitted for aluminum blocks with cast iron liners.
mm 84.245
(+/- 0.014)
Piston running clearance mm 0.01 - 0.04
Pemitted total wear tolerance piston/cylinder
engine operated
mm 0.15