Mann Filter fuel filter WK 842/23 x for Mercedes‑Benz Sprinter — water-sensor connection, high-efficiency water separation

This fuel filter replaces OE units on various Sprinter models and protects the fuel injection system by removing particulates, rust, and water. Built with premium media and materials, it maintains optimal fuel flow with minimal pressure drop and is rated to deliver near-complete fuel/water separation in diesel applications. The unit includes a water sensor connection for automatic contamination warnings and matches multiple original equipment numbers for straightforward fitment.

How does this filter protect my Sprinter's fuel system?

The WK 842/23 x captures tiny particles and separates water before contaminants reach sensitive injectors and pumps. Preventing abrasive wear and corrosion helps extend component life and reduces the risk of injector blockage under heavy use.

• High-efficiency filter media traps dust, rust, and dirt.
• Designed for almost 100% diesel fuel/water separation in tests.
• Minimized pressure loss keeps fuel delivery steady.
• Premium construction tolerates extreme operating temperatures.

Will this fit my Mercedes‑Benz Sprinter and its water-sensor system?

The part is made to be compatible with a range of Sprinter models that use a water-sensor-equipped fuel filter housing. It corresponds to multiple OE reference numbers for correct replacement and electrical sensor interfaces.

• Includes water-sensor connection for contamination detection.
• Matches OE numbers such as A 642 092 05 01 and A 646 092 06 01.
• Designed for direct installation where the OE filter uses a sensor port.
• Ideal for diesel Sprinter engines requiring water separation capability.

How often should I replace the MANN-FILTER WK 842/23 x?

Replacement intervals depend on driving conditions, fuel quality, and manufacturer recommendations; typical service intervals align with scheduled fuel system maintenance for diesel Sprinters. Inspect the sensor warning and visual fuel quality—early replacement prevents damage from water and debris.

• Follow vehicle manufacturer service intervals as a baseline.
• Replace sooner if a water-sensor warning or contamination appears.
• Consider shorter intervals with poor fuel or heavy-duty use.

What performance benefits can I expect after installing this filter?

Expect cleaner fuel reaching the injectors, more consistent engine response, and reduced risk of corrosion and premature wear in the fuel system. The optimized flow design maintains pressure while the media does the separation work, helping preserve fuel-system efficiency.

• Improved protection for injectors and pumps against particles and water.
• Stable fuel pressure and reliable engine performance.
• Extended lifetime for downstream fuel-system components.

Who is this for: The MANN-FILTER WK 842/23 x is aimed at owners, fleets, and technicians servicing diesel Mercedes‑Benz Sprinter vans that require a sensor-equipped fuel filter replacement. It's suited for operators prioritizing fuel-system reliability, precise water detection, and OEM-level compatibility during repairs or scheduled maintenance.