Measure Piston Ring End Gap - AR03.10-P-7311-02MRH
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Engine 264
CHECK VALUES FOR PISTON RINGS
| Number | Designation | Engine 264.915 | Engine 264.920 | ||
|---|---|---|---|---|---|
| BE03.10-P-1002-05L | Piston ring end gap | Groove 1 | mm | 0, 18...0, 28 | 0, 2...0, 3 |
| Groove 2 | mm | 0, 3...0, 5 | 0, 3...0, 5 | ||
| Groove 3 | mm | 0, 2...0, 7 | 0, 2...0, 7 | ||
The cylinder barrel (1) must be free from combustion residue.
False measurements can occur otherwise.
- Insert the corresponding piston ring (2) in the lower, unworn area in the corresponding cylinder barrel (1) and align it with the cylinder barrel (1).
Use a piston without piston rings (2) for alignment.
- Measure the end gap (arrow) at the corresponding piston ring (2).
Feeler gauge
For wear on a piston ring (2)
↓
Replace all piston rings (2) of the affected piston.