Checking piston ring gap

Push ring in squarely to a position approx. 15 mm from bottom end of cylinder.

PISTON RING GAP SPECIFICATIONS

Piston ring	Gap when new	Wear limit
1	0.35 - 0.50 mm	1.0 mm
2	0.50 - 0.70 mm	1.4 mm
3	0.25 - 0.50 mm	0.8 mm

Fig 1: Checking Piston Ring End Gap

G02724335

Courtesy of AUDI OF AMERICA, INC.