Purpose and Specifications

MANN-FILTER C 4312/1 is a genuine engine air filter that removes dust, sand and pollen from the intake air, protecting the mass-air-flow sensor and engine internals while ensuring the correct air/fuel mixture for full power and efficient combustion.

Key specs include:

• Filter type: engine air filter (OE-matched)
• Reference: C 4312/1
• Brand: MANN-FILTER (OE quality)
• Precise OE dimensions and sealing for a direct, leak-free fit
• High-grade media for effective filtration and long service life

When to Use / Replace?

Replace this engine air filter every 15,000-30,000 km or once a year, and more often in dusty conditions. A clogged filter reduces performance and can damage downstream components, so inspect it at every service.

FAQ

Q: How do I know MANN-FILTER C 4312/1 fits my car?
A: Match the reference C 4312/1 (or the OE number in your service book) to your exact model, engine and build year.

Q: How often should this filter be changed?
A: Replace it every 15,000-30,000 km or once a year, and more often in dusty conditions.

Q: Is this a genuine MANN-FILTER part?
A: Yes - an original MANN-FILTER product built to OE specification for a precise fit.

Important: one filter reference can fit several models, and the same model may use different filters depending on engine and build year. Always verify fitment by the manufacturer reference or your vehicle's OE number before purchase - if in doubt, check against your owner manual.