Original MANN-FILTER Oil Filter WK 939/8 x – Oil filter set with gasket / gasket set – For passenger cars

MANN‑FILTER Oil Filter WK 939/8 x – Comprehensive Overview

The MANN‑FILTER Oil Filter WK 939/8 x is a premium oil filtration solution engineered for passenger cars that demand reliable protection and optimal engine performance. This article delves into every aspect of the product, from its design philosophy to installation nuances, ensuring you have all the information needed to appreciate its value.

Design & Construction

The filter is built around a robust cylindrical housing that houses a high‑efficiency filtration media. The media itself consists of multiple layers of synthetic fibers engineered to trap particles ranging from 0.5 µm and larger, thereby safeguarding the engine’s internal components.

A key feature is the inclusion of a sealed gasket set, which guarantees a leak‑free seal between the filter housing and the engine oil pan. The gasket material is a high‑temperature resistant elastomer that maintains integrity even under extreme operating conditions.

Performance Characteristics

• Filtration Efficiency: Captures >99% of contaminants, ensuring clean oil circulation.
• Flow Rate: Designed to maintain optimal oil pressure across a wide range of engine speeds.
• Durability: Rated for extended service intervals in accordance with manufacturer specifications.

Compatibility & Vehicle Range

The WK 939/8 x is engineered to fit a broad spectrum of passenger cars. Its dimensions and mounting geometry align with the original equipment (OE) specifications for numerous models, including:

• Nissan vehicles such as the Micra III (K12) 1.5 L (2005‑2010)
• Renault models like the Clio II, Kangoo I & II, and Symbol Thalia
• Other European passenger cars that share similar oil filter mounting configurations.

Because of its universal design, mechanics can confidently install this filter across multiple platforms without compromising fit or performance.

Installation Guide

1. Preparation: Drain the engine oil completely to avoid contamination during installation.
2. Remove Old Filter: Unscrew the existing filter using a suitable wrench. Dispose of it responsibly.
3. Apply Gasket Set: Place the new gasket set onto the oil pan, ensuring even coverage and correct orientation.
4. Mount New Filter: Screw the WK 939/8 x filter into place, tightening to the manufacturer’s torque specification (typically 10–12 Nm).
5. Refill Oil: Replenish the engine with the recommended oil type and quantity.
6. Check for Leaks: After starting the engine, inspect the filter area for any signs of leakage.

Maintenance & Service Intervals

The filter is designed to meet or exceed the service intervals specified by vehicle manufacturers. Regular oil changes should include a filter replacement to maintain optimal engine protection. Failure to replace the filter within the recommended timeframe can lead to accelerated wear and potential engine damage.

Quality Assurance & Brand Heritage

MANN‑FILTER is renowned for its commitment to quality, backed by rigorous testing protocols. The WK 939/8 x benefits from:

• ISO 9001 certification of the manufacturing facility.
• Extensive laboratory testing for filtration efficiency and pressure drop.
• Compliance with automotive industry standards such as ISO 8573‑2 for oil filter performance.

Environmental Considerations

The filter’s design incorporates recyclable materials wherever possible, reducing environmental impact. Additionally, by ensuring cleaner engine operation, the filter contributes to lower emissions and improved fuel economy.

Frequently Asked Questions

Is the WK 939/8 x suitable for high‑performance engines?

Yes, its robust construction and low pressure drop make it ideal for engines that demand consistent oil flow under high load.

Can I use a generic gasket instead of the supplied set?

While possible, using the OEM gasket ensures optimal sealing and prevents leaks.

What is the expected lifespan of this filter?

The filter’s lifespan aligns with the vehicle’s oil change schedule, typically every 10,000–15,000 km or as specified by the manufacturer.

Conclusion

The MANN‑FILTER Oil Filter WK 939/8 x exemplifies engineering excellence tailored for passenger cars. Its combination of high filtration efficiency, durable construction, and ease of installation makes it a top choice for both professional mechanics and DIY enthusiasts seeking reliable engine protection.