Original MANN-FILTER Oil filter W 940/44 – For Passenger Cars and Utility Vehicles

Product Overview

The MANN‑FILTER Oil Filter W 940/44 is a high‑performance screw‑on oil filter designed specifically for passenger cars and utility vehicles. It features a robust construction that ensures reliable protection of the engine’s lubrication system under a wide range of operating conditions.

Key Design Features

• Durable Filter Media: The filter uses advanced, multi‑layer media that captures fine particles while maintaining low pressure drop for optimal oil flow.
• Anti‑Return Valve: Integrated valve prevents backflow of contaminated oil, ensuring the engine receives only clean lubrication.
• High Flow Capacity: Engineered to support high‑performance engines with a maximum flow rate that meets or exceeds OEM specifications.
• Robust Housing: Constructed from high‑strength plastic and reinforced metal fittings, the housing resists cracking and corrosion over extended service life.

Compatibility Range

The filter is engineered to fit a broad spectrum of vehicles. Commonly matched models include:

• Audi A4 (8D5, B5)
• Audi A6 (C5, 4B)
• Volkswagen Passat (3B2, 3B5)
• Various utility and commercial vehicles that share the same mounting geometry.

Installation Guidelines

1. Warm up the engine to operating temperature to reduce oil viscosity.
2. Drain the existing oil completely before removal of the old filter.
3. Unscrew the old filter, ensuring no oil spills onto the floor or surrounding components.
4. Clean the mounting surface with a lint‑free cloth; remove any debris.
5. Screw on the new MANN‑FILTER W 940/44 by hand until it is snug, then give an additional half turn with a wrench for secure fit.
6. Refill the engine with the recommended oil type and capacity.
7. Start the engine and check for leaks; observe the oil pressure gauge to confirm proper operation.

Performance Benefits

• Extended Engine Life: By trapping contaminants, the filter reduces wear on bearings and seals.
• Improved Fuel Efficiency: Low resistance flow maintains optimal oil pressure without excessive pumping effort.
• Consistent Oil Quality: The anti‑return valve ensures that only clean oil circulates, preventing contamination of the engine’s critical components.

Maintenance Schedule

For most passenger cars and light utility vehicles, it is recommended to replace the MANN‑FILTER W 940/44 every 10,000–15,000 miles (or as specified by the vehicle manufacturer). In high‑stress environments—such as frequent short trips, dusty conditions, or heavy towing—a more frequent replacement interval may be advisable.

Quality Assurance

The filter is manufactured in accordance with MANN‑FILTER’s strict quality control standards, which include:

• ISO 9001 certification for manufacturing processes.
• Rigorous testing of flow rate, pressure drop, and particle retention.
• Compliance with automotive industry specifications for safety and performance.

Environmental Considerations

The design incorporates recyclable materials where possible, contributing to reduced environmental impact. Proper disposal of used filters is encouraged in accordance with local regulations.

Conclusion

The MANN‑FILTER Oil Filter W 940/44 delivers reliable protection for engines across a wide range of passenger and utility vehicles. Its combination of durable media, anti‑return valve, and high flow capacity ensures that the engine receives clean oil, thereby enhancing performance, longevity, and fuel efficiency.