REP-TAT-P-1125-05 Check side clearance of piston rings
WARNING: This page is about a different car, the 2018 BMW 340i, 2017 BMW 340i, and 2016 BMW 340i. However, it is still accessible from the selected car via links, so may be relevant.
Check
- Check the side clearance of the upper piston ring with a feeler gauge.
TECHNICAL DATA SPECIFICATIONS
| Side clearance of upper piston ring | |
|---|---|
| Clean all components before measuring the side clearance. | 0.035 mm... 0.085 mm |
Result
» Side clearance outside tolerance
Measure
- Replace the piston ring.
Check
- Check the side clearance of the center piston ring with a feeler gauge.
TECHNICAL DATA SPECIFICATIONS
| Side clearance of center piston ring | |
|---|---|
| Clean all components before measuring the side clearance. | 0.015 mm... 0.06 mm |
Result
» Side clearance outside tolerance
Measure
- Replace the piston ring.