Astra L4-1.8L (2009)
Engine Oil Control Valve: Service and Repair
Oil Pressure Relief Valve Replacement
Removal Procedure
1. Remove the oil pressure relief valve.
Remove the closure bolt (1).
2. Remove the spring and the piston.
3. Clean the parts.
4. Inspect the parts.
5. Clean the thread.
Installation Procedure
1. Install the oil pressure relief valve.
