Original MANN-FILTER Oil Filter WK 939/4 – For passenger cars

Original MANN‑FILTER Oil Filter WK 939/4 – For Passenger Cars

The MANN‑FILTER Oil Filter WK 939/4 is a high‑performance filtration solution designed specifically for passenger vehicles. Engineered with precision, this filter delivers reliable protection against contaminants that can compromise engine longevity and performance.

Key Design Features

• Advanced Filtration Media: Utilizes a multi‑layered media system that captures particles as small as 0.5 µm, ensuring the fuel remains clean and free from debris.
• Optimized Flow Resistance: The filter’s architecture balances filtration efficiency with minimal pressure drop, maintaining optimal engine airflow and fuel delivery.
• Durable Construction: Made from high‑quality polypropylene housing that resists corrosion and withstands the harsh conditions inside a vehicle’s fuel system.
• Easy Installation: Designed for quick, tool‑free replacement. The filter’s shape and size are compatible with most passenger car models, making it a convenient choice for both professional mechanics and DIY enthusiasts.

Performance Benefits

When installed in your vehicle, the MANN‑FILTER Oil Filter WK 939/4 offers several tangible advantages:

• Engine Protection: By trapping contaminants before they reach critical engine components, it reduces wear on pistons, valves, and bearings.
• Fuel Efficiency: A clean fuel system promotes smoother combustion, which can translate into better mileage over time.
• Reduced Maintenance Intervals: The filter’s high capacity allows for longer service intervals compared to standard filters, saving you time and effort.
• Consistent Performance Across Conditions: Whether driving in dusty environments or on smooth highways, the filter maintains its filtration integrity.

Compatibility Overview

The WK 939/4 is engineered to fit a wide range of passenger cars. Its dimensions—187 mm height and 187 mm length—make it suitable for many models that require an inline fuel filter. While the exact compatibility list varies by manufacturer, this filter is commonly used in:

• Renault Megane II (including hatchback, estate, and grand tour variants)
• Renault Scenic II (both standard and grand versions)
• Other European passenger cars that specify the WK 939/4 or equivalent inline filter size.

For precise fitment, consult your vehicle’s service manual or a trusted automotive technician. The filter’s standardized shape ensures it can be swapped with minimal adjustments.

Installation Guide

1. Safety First: Disconnect the battery and relieve fuel system pressure to avoid accidental spray.
2. Locate the Filter: The WK 939/4 is typically positioned along the fuel line, often near the engine bay or under the vehicle.
3. Remove Old Filter: Loosen any clamps or fasteners holding the filter in place. Carefully detach the old filter, allowing any residual fuel to drain safely.
4. Install New Filter: Place the new WK 939/4 into position, ensuring it sits flush against the housing. Reattach clamps and secure all connections.
5. Re‑pressurize System: Reconnect the battery and restore fuel system pressure according to manufacturer guidelines.
6. Check for Leaks: Inspect all fittings for any signs of leakage before starting the engine.

Maintenance Tips

• Replace the filter at intervals recommended by your vehicle’s maintenance schedule or when you notice a decline in fuel efficiency.
• Inspect the filter housing and connections regularly for corrosion or damage.
• Keep the surrounding area clean to prevent debris from entering the filter during operation.

Why Choose MANN‑FILTER?

MANN‑FILTER is a globally recognized brand known for its commitment to quality, reliability, and innovation in automotive filtration. The WK 939/4 reflects this heritage through:

• Rigorous Testing: Each filter undergoes extensive laboratory testing to meet or exceed OEM specifications.
• Environmental Responsibility: Materials are selected for durability and recyclability, reducing the environmental footprint.
• Global Support Network: Technical assistance is available worldwide, ensuring you can access guidance whenever needed.

Conclusion

The MANN‑FILTER Oil Filter WK 939/4 stands out as a dependable choice for passenger car owners who value engine protection and performance. Its advanced filtration media, robust construction, and ease of installation make it an ideal component in maintaining vehicle health over the long haul.