Measure end clearance of piston rings - AR03.10-P-7311-01VT
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
CHECK VALUES FOR PISTON RINGS
| Number | Designation | Engines 113.987/988/989 | Engine 113.967 | Engine 113.990/991/ 992/995 | ||
|---|---|---|---|---|---|---|
| BE03.10-P-1001-05B | Piston ring vertical clearance | Groove 1 | mm | 0.020...0.065 | 0.033...0.070 | 0.020...0.065 |
| Groove 2 | mm | 0.015...0.045 | 0.01...0.04 | 0.015...0.050 | ||
CHECK VALUES FOR PISTON RINGS
| Number | Designation | Engines 113.960/961/ 962/963/964/ 965/968/971 | ||
|---|---|---|---|---|
| BE03.10-P-1001-05B | Piston ring vertical clearance | Groove 1 | mm | 0.012...0.060 |
| Groove 2 | mm | 0.010...0.030 | ||
COMMERCIALLY AVAILABLE TOOLS
| Number | Designation |
|---|---|
| WH58.30-Z-1004-12A | Feeler gauge |
- Measure the side clearance of the compression rings between the compression ring and the mounting groove in the piston with a
feeler gauge.
If the side clearance is beyond the permissible tolerance, replace compression rings or piston.