The K&N 33-2678 is a washable, reusable panel air filter that replaces a disposable paper element without modifying the intake. Its layered cotton gauze media is treated with a tacking agent to trap contaminants while keeping airflow high. Against a stock paper filter, the value is an intake you clean and re-oil instead of replacing. K&N lists a No-Hassle Lifetime Limited warranty for this filter.
Confirm fitment before buying. The manufacturer's own page for this part number lists it for the Mercedes-Benz SL500 V8 5.0L fuel-injected engine from 1992 to 2001, while the product name refers to a 600 Series V-12, so check the application by year, model, and engine in the manufacturer's catalog. The filter is pre-oiled and ready to drop into your factory air box. The manufacturer's service guidance points to roughly 50,000 miles of normal highway driving between cleanings.
Enthusiasts searching for a K&N 33-2678 SL500 air filter, a washable Mercedes-Benz panel filter for 1992-2001 cars, or a reusable cotton gauze drop-in replacement for a big-displacement Mercedes V8 will find the key details here.
The manufacturer lists this part for the Mercedes-Benz SL500 V8-5.0L fuel-injected engine from 1992 to 2001. The product name refers to a 600 Series V-12, so confirm the exact year, model, and engine against the manufacturer's application catalog before ordering.
The manufacturer says drop-in High-Flow filters typically need servicing about once every 50,000 miles under normal highway driving. Dusty or stop-and-go conditions may call for more frequent checks.
The manufacturer states that the filter is a direct replacement for the stock element and that no modifications are required. Its install guidance notes that some K&N filters go into the airbox lid first, so the filter should be seated correctly before the lid is closed.
This is a basic drop-in job that usually needs no tools beyond the ones used to open the factory airbox. Remove the stock element, wipe out any debris in the housing, and seat the K&N with the lid and base aligned. The manufacturer notes that some intake tubes are rigid, so loosening the tube at the airbox lid can make the lid easier to manipulate. If the filter sits in the lid, hold it in place with your fingers while refitting the lid so it does not fall out. For upkeep, the manufacturer advises using only K&N oil and never saturating the filter, and wiping away any excess oil that drips from it.
