Measuring The Ring To Groove Clearance
WARNING: This page is about a different car, the 2015 Audi RS 5, 2014 Audi RS 5, and 2013 Audi RS 5. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of AUDI OF AMERICA, LLC
-- Clean the piston ring groove before checking.
| Piston Ring |
New mm |
Wear Limit mm |
| 1st. Compression ring |
0.020 to 0.070 |
0.200 |
| 2nd Compression ring |
0.005 to 0.045 |
0.150 |
| Oil scraping ring |
0.020 to 0.060 |
0.200 |