Description
Overview
The Valve Cover Diaphragm Kit 1.6 HDi 0248S0 is a new, direct-fit replacement diaphragm and pressure/breather component for PSA Citroën & Peugeot 1.6 HDi engines. Designed for professional mechanics and competent DIY enthusiasts, this part restores correct crankcase ventilation, helps prevent oil leaks at the valve cover area and ensures stable engine running conditions.
Function And Benefits
- Regulates crankcase pressure and routes oil vapour back to the intake system for combustion, reducing emissions.
- Helps prevent oil leaks around the valve cover by maintaining correct ventilation pressure.
- Direct-fit replacement for the original diaphragm assembly identified by product code 0248S0.
Replacement Guide
Basic replacement steps: drain or remove obstacles to access the valve cover, unfasten the valve cover retaining bolts and remove the cover, remove the old diaphragm and any retaining clips, clean the contact surfaces thoroughly, fit the new diaphragm ensuring correct seating and orientation, replace the valve cover gasket if worn, and reassemble using the manufacturer's specified torque for the cover fasteners. After installation, check for oil leaks and proper idle with the engine at operating temperature.
Common Failure Modes And Maintenance
- Ageing rubber and hardening of the membrane lead to vacuum leaks and loss of proper ventilation control.
- Oil contamination, sludge, and debris can degrade the diaphragm surface and sealing edge.
- Heat cycling may cause cracks or tears in the membrane, producing rough idle, increased oil consumption or oil leaks.
Technical Information
- Manufacturer: PSA (Citroën, Peugeot)
- Model: 1.6 HDi Engines (PSA)
- Product Codes: 0248S0
- Additional Numbers: Not specified
