A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
Piston Ring: Specifications
Piston rings
Offset gaps by 120°
Use piston ring pliers for removal and installation
Mark TOP must face toward piston head
Checking piston ring gap
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Push ring squarely from above down to approximately 15 mm from bottom end of cylinder. To do this use a piston without rings.
Checking ring to groove clearance
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Clean ring groove of piston before checking.