High-quality replacement cylinder head cover designed for 2.0 HDi engines (RHR, RHK) used in various Citroën and Peugeot models. This valve cover is supplied with the most commonly referenced part numbers and cross-references used by workshops and DIY mechanics, making it easy to find by product code. Built to restore a proper seal at the top of the engine, it prevents oil leaks, protects the camshaft area from contamination and supports integrated ventilation components found on HDi engines.

This part is ideal for professional mechanics and experienced DIYers who service diesel HDi engines. The cover is frequently searched and ordered by its product codes, so listing the correct reference numbers below will help you locate the exact item quickly.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: 2.0 HDi (Engine Codes RHR, RHK) — fits multiple Citroën and Peugeot models
• Product Codes: 9645977980, 9669688980, 0248Q6
• Additional Numbers: 0248.L1, 0248.Q6, 0248L1, 0248Q6, 9660281080, 9662688980

Compatible Vehicles (Examples)

Common vehicle applications include Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C8, Peugeot 3008 I, Peugeot 307, Peugeot 308, Peugeot 407, Peugeot 5008 I, Peugeot 807 and Peugeot 508 equipped with 2.0 HDi engines (RHR / RHK). Always verify engine code and part number match the vehicle requirements before installation.

Replacement Procedure (Overview)

• Prepare the vehicle: allow the engine to cool and work on a flat surface. Remove engine covers and any intake components obstructing access to the valve cover.
• Disconnect ignition coils or spark plug leads if required for clear access. Remove bolts securing the valve cover in a diagonal sequence to avoid distortion.
• Carefully lift off the valve cover. Remove the old gasket and clean the mating surfaces thoroughly—remove oil, carbon deposits and old sealant residue without scratching the surface.
• Fit a new gasket and replace any damaged studs or bolts. Reinstall the valve cover and tighten bolts evenly to the manufacturer’s torque specification. Do not overtighten.
• Reconnect coils, hoses and any removed components. Refill or top up oil if needed, start the engine and check for leaks once up to operating temperature.

Installation Recommendations

• Use a new gasket whenever you replace the valve cover. Old gaskets rarely reseal properly after removal.
• Clean mating surfaces thoroughly and inspect bolt threads and studs. Replace corroded or damaged studs to ensure an even seal.
• Follow the vehicle manufacturer’s torque specifications for valve cover bolts. Tighten in a cross pattern to avoid warping.
• Replace any integrated PCV/oil separator components if they show signs of failure—blocked ventilation can increase crankcase pressure and force oil past seals.
• After installation, run the engine and recheck for leaks. Inspect again after a short test drive.

Why This Part Fails (Most Common Reasons)

The valve cover itself can develop cracks from thermal stress or impact, but the most frequent cause of oil leaks is gasket deterioration. Rubber and cork gaskets harden, shrink or become compressed over time, losing their sealing ability—especially after 80,000–150,000 km or several years in service depending on driving conditions and maintenance. Other common causes include damaged or loose mounting bolts/studs, warped mating surfaces from overheating, and failure of integrated ventilation or PCV components which increases crankcase pressure and forces oil past the seal.

Search And Ordering Tip

This part is commonly searched by its reference numbers: 9645977980, 9669688980, 0248Q6 and the additional cross-references listed above. Use these codes to quickly locate the correct valve cover for Citroën and Peugeot 2.0 HDi installations.

Description

This valve cover is a direct-fit solution for vehicles equipped with the 1.6 HDi diesel engine. Designed for professional workshops and experienced DIY mechanics, it restores a secure seal at the top of the engine, prevents oil leaks, and integrates the crankcase ventilation/pressure valve assembly. The part is commonly referenced by OEM Number 9660281080 and Manufacturer Code 0248L1, which customers often use to find exact replacements.

Key Benefits

• Direct Fit For 1.6 HDi Engines: Saves installation time and avoids modifications.
• Integrated Pressure Valve: Ensures Correct Crankcase Ventilation And Helps Prevent Pressure Build-Up.
• Reduces Oil Leaks: Proper sealing Helps Maintain Oil Pressure And Cleanliness Around The Camshaft Area.
• OEM References Included: Easier Matching By Part Number (9660281080, 0248L1).

Technical Information

• Manufacturer: Stellantis
• Model: 1.6 HDi Engines (Citroën, Peugeot)
• Product Codes: 9660281080
• Additional Numbers: 0248L1

Installation Recommendations

• Preparation: Work On A Cool Engine. Remove Engine Cover And Any Obstructing Components To Access The Valve Cover.
• Disassembly: Disconnect Ventilation Hoses From The Pressure Valve And Remove Bolts In A Cross Pattern To Avoid Distortion.
• Sealing: Always Replace The Valve Cover Gasket When Installing A New Cover. Clean Mating Surfaces Thoroughly And Remove Old Sealant Or Oil Residue.
• Assembly: Install New Gasket, Position Cover Evenly, And Tighten Bolts Gradually To Manufacturer Torque Specifications. Replace Any Damaged Bolts Or Washers.
• Final Checks: Reconnect Hoses, Start Engine, And Inspect For Leaks Around The Cover And Hoses. Verify The Pressure Valve Is Functioning And Hoses Are Not Cracked Or Blocked.

Why This Part Fails

Valve covers commonly develop problems due to aging and heat exposure. The most frequent causes are deteriorated or flattened gaskets that allow oil to leak, cracked plastic covers from heat cycling or over-torqued bolts, and clogged or faulty pressure/PCV valves that cause excess crankcase pressure and oil seepage. Incorrect installation or reuse of old sealing material also increases the risk of leaks.

When To Replace

There Is No Fixed Interval For Replacement; Inspect The Valve Cover During Regular Service Intervals And Replace It When You Notice Oil Leaks, Strong Oil Odors In The Engine Bay, Visible Cracks, Or When The Pressure/PCV Valve Is Not Operating Correctly. On High-Mileage Vehicles (Over 100,000 Km) Replacement Is Common.

Notes For Mechanics And DIY Enthusiasts

• Keep A Record Of OEM Numbers (9660281080, 0248L1) For Fast Parts Lookup.
• Replace The Gasket And Any Perishable Hoses When Changing The Cover To Avoid Repeat Repairs.
• Use Manufacturer Torque Values And Follow Recommended Bolt Tightening Sequence To Prevent Cover Distortion.

Compatibility And Fitment

Fits Vehicles Equipped With The 1.6 HDi Diesel Engine From Citroën And Peugeot. Verify Compatibility By Matching The OEM Part Number 9660281080 Or Reference Code 0248L1.

This valve cover is designed for PSA Group 1.6 HDi diesel engines and carries the original part references 9651815680 and 0248L1. It is a direct-fit component intended for use by professional mechanics and competent DIY enthusiasts servicing Citroën and Peugeot vehicles. The cover houses the upper sealing of the cylinder head, protects camshafts and valvetrain components from contaminants, and plays a key role in the engine’s crankcase ventilation system.

Features And Benefits

• OE Part References: 9651815680, 0248L1 for straightforward identification and ordering.
• Integrated pressure (PCV) valve functionality to support proper crankcase ventilation and reduce internal engine pressure.
• Durable construction to withstand engine bay temperatures and exposure to oil.
• Designed for easy installation with original mounting points to ensure correct fit and sealing.

Fitment And Typical Applications

Fits PSA Group 1.6 HDi engines commonly found in a range of Citroën and Peugeot models. Examples include small and compact models such as the Citroën C3, C4, Berlingo and Peugeot 207, 308, Partner. Always verify fitment by matching the part number 9651815680 or 0248L1 to your vehicle before purchase.

Installation Guidance

Installation requires basic mechanical skills and common hand tools. Typical steps:

• Allow the engine to cool. Remove any decorative engine covers.
• Disconnect electrical connectors and remove ignition coils or spark plug leads that attach to the valve cover.
• Carefully unfasten the valve cover bolts in a cross pattern, then lift the cover free.
• Remove the old gasket material and clean the mating surfaces thoroughly to prevent future leaks. Replace the gasket with a new one when refitting the cover.
• Inspect the PCV/pressure valve and replace if clogged or damaged. Refit the valve cover and tighten bolts to the manufacturer’s torque specification.
• Reconnect coils/electrical connectors and check for leaks after a short run-in.

Durability And Common Faults

Valve covers are durable but can develop leaks over time due to aging gaskets, heat cycling, or damage to mounting surfaces. Common symptoms of a failing valve cover or gasket include oil seepage around the top of the engine, burning oil odors, or reduced PCV performance which can lead to increased crankcase pressure. Regular inspection during routine servicing helps catch leaks early. Replacement intervals vary by vehicle use and conditions; many covers last the life of the vehicle but gaskets typically require replacement more frequently.

Technical Information

• Manufacturer: PSA / Citroën / Peugeot
• Model: 1.6 HDi
• Product Codes: 9651815680
• Additional Numbers: 0248L1