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Piston Ring Groove Clearance, Checking

WARNING: This page is about a different car, the 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Checking Piston Ring Gap
GWWV13-0687Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Special tools and workshop equipment required 

Test Sequence 

-- Clean the ring grooves in the piston before checking.

Piston Ring Ring to Groove Clearance
Dimensions in mm New Wear limit
1. Compression ring 0.06...0.09 0.20
2. Compression ring 0.03...0.06 0.15
Oil scraping ring cannot be measured
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