Replacing piston rings on all pistons engine BMW M52, S52, M52TU, M54, M56
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Remove the piston ring pliers.
On the rings which were in operation, the marking may not be visible.
Fold the ring should be in the correct sequence and position.
New pistons need to install new piston rings only.
Set the ring so that the inscription “TOP” facing towards the bottom of the piston.
1. Rectangular Ring
2. Tapered ring “Top”
3. The box-scraper piston ring with slots with a spiral coiled spring expander
Measure the axial clearance.
Measure the end gap of the piston rings.