X4XZ Engine Air Filter for Mercedes-Benz E350 E550 GLK350 — Pleated Microfiber OE-Fit, High Dust Capacity

The X4XZ Engine Air Filter is a direct-fit replacement air intake filter built to trap dust and debris, restore proper airflow, and protect Mercedes-Benz engines listed in the compatibility range.

If your Mercedes is showing reduced throttle response, decreased fuel efficiency, or if the existing air filter looks dark and clogged, replacing it with a high-quality element can help restore engine breathing and extend service intervals. This X4XZ filter is made from pleated microfiber adhesive paper for fine particle capture and high dust-holding capacity, and matches the listed OE references for simple swap-in installation.

Which Mercedes models will this air filter fit?

This replacement is designed to fit many Mercedes-Benz models across C‑Class, E‑Class, S‑Class, SL, SLK, CL, CLS, GL/GLK, ML, R and G series from late 1990s through the 2010s. Always compare the pictured filter shape and the OE number with your vehicle before ordering to confirm fitment.

• Compatible OE references: C 3698/3-2; replaces OE# 1120940604 and 273 094 04 04.
• Common compatible models include: C230/C240/C280/C300/C320/C350, CLK320/CLK350/CLK500, E350/E500/E550, S400/S430/S500/S550, SL/SLK/GL/GLK/ML/R/G variants (see full list in product features).
• Check the second main product image to verify shape and dimensions match your current filter housing.

How does this filter protect my engine during everyday driving?

The X4XZ filter traps airborne particles before they enter the intake tract, reducing abrasive contaminants that can accelerate wear. Its pleated microfiber media balances fine filtration with sufficient airflow so the engine receives clean air without restrictive breathing.

• Microfiber adhesive paper media captures small particulates while maintaining breathability.
• Large dust-holding capacity delays clogging and extends service intervals compared with cheaper flat filters.
• Direct-replacement form factor ensures correct seal inside the airbox to prevent unfiltered air bypass.

What should I expect when installing this X4XZ replacement?

Installation is straightforward for any technician or competent DIYer: remove the airbox lid, extract the old element, and seat the new filter in the housing ensuring a snug seal. No modifications are required since the unit is manufactured to match OEM fitment for the listed applications.

• Package includes one engine air filter ready for installation.
• No cutting, adapters, or special tools typically required—basic hand tools will do.
• If you need help, X4XZ provides 24-hour customer service and a 1-year product support policy.

How long will this filter last and when should I replace it?

Service life depends on driving conditions: dusty or urban environments require more frequent changes, while highway driving allows longer intervals. Inspect the filter visually at each oil change and replace if the pleats are dark and saturated with debris or after the manufacturer’s recommended interval.

• Replace sooner in dusty, off‑road, or heavy traffic conditions.
• Typical inspection interval: every oil change or annual service; replace when heavily soiled.
• Keeping the intake filter in good condition helps maintain fuel economy and engine performance.

Who is this for: The X4XZ Engine Air Filter is aimed at Mercedes-Benz owners and independent shops seeking an economical, OEM-replacement quality filter for models listed in the compatibility range. It suits drivers who want reliable filtration performance, easy installation, and aftermarket support without paying OEM part premiums. Before purchase, confirm fitment by checking your vehicle’s existing part number or the second product image for shape and sealing features.