Mann Filter Engine Air Filter C 43 139 for Mercedes-Benz C300 C350 E350 SLK350 GLE350 – OE Fit, Water-Resistant Media

The Mann Filter C 43 139 is a direct-replacement engine air filter engineered to deliver clean intake air and OE fit for select Mercedes‑Benz models.

This high-quality replacement filter is built to protect the engine by removing contaminants while maintaining correct airflow for efficient combustion. Mann Filter combines a reinforced, water‑resistant filter media with embossed pleats and their glue string technology so the element stays stable under high airflow and moisture. The design includes a precision gasket and housing profile intended to seat like original equipment, giving you predictable performance and long service life in demanding driving conditions.

How does this filter help protect my Mercedes’ engine?

The C 43 139 traps dust, pollen and road debris before they reach the intake, reducing wear and preserving sensor performance. Its flame‑retardant, water‑resistant media keeps filtration effective even in damp conditions, and the embossed pleats resist deformation at high air volumes.

• High dirt separation efficiency to keep particles from entering the combustion chamber
• Low flow resistance for stable mass air flow readings
• Embossed pleats and glue string technology to prevent pleat bunching
• OE-style gasket and housing profile for tight sealing

Will this fit my Mercedes-Benz model and install easily?

The part is specified as a direct replacement for a range of Mercedes‑Benz vehicles including C300 (2013–2014), C350, E350, SLK350, GLE350, GLK350 and ML350 across the given years. It is manufactured to OE dimensions so it drops into the factory airbox without modification, preserving factory fit and sealing.

• Form, fit and sealing designed to match original equipment
• Compatible with the listed Mercedes‑Benz model years and engine layouts
• No trimming or adapters required for standard installations
• Works with existing airbox clips and mounts used by Mercedes

How does Mann Filter construction differ from cheaper filters?

Mann Filter focuses on material quality and engineered stability rather than minimal cost. The media includes flame‑retardant and water‑resistant treatments, embossed pleats for rigidity, and glue string technology to secure spacing—features that reduce collapse, bypass and performance loss over time.

• Special coating protects against hot ash and moisture damage
• Embossing increases pleat stiffness and longevity
• Glue string bonding maintains even pleat spacing under pressure
• Designed to balance filtration efficiency with low pressure drop

How often should I replace the air filter and what maintenance matters?

Replacement intervals vary with driving conditions; inspect the element at routine service intervals and swap it when visibly dirty or per the vehicle manufacturer’s schedule. Proper seating and a clean airbox ensure the filter can do its job—avoid installing a damaged gasket or an incorrectly sized element.

• Check the filter during every oil change or as recommended in your owner’s manual
• Replace sooner if you drive in dusty, off‑road or heavy-traffic environments
• Always inspect the gasket and airbox sealing surfaces before installation
• Use genuine or OE-quality filters to maintain sensor and engine reliability

Who is this for: The Mann Filter C 43 139 is intended for Mercedes‑Benz owners and independent technicians who want an OE‑quality replacement that preserves factory airflow characteristics and engine protection. It’s a good choice for drivers seeking a durable, water‑resistant filter that resists pleat deformation under high air volumes and maintains reliable filtration in varied climates.