2022 Mercedes-Benz GLS-Class Air Filter in Lynnfield, MA

The engine air filter sits in the engine bay inside a sealed airbox, typically on the passenger side, upstream of the intake ducting.

This location feeds clean air to the 3.0L inline-6 turbo (engine code 6ITCM3.0) before it reaches the mass airflow sensor and turbocharger. A properly sealed airbox is critical for maintaining the GLS-Class’s power delivery and fuel economy across North Shore driving. If you’re unsure, our team in Lynnfield can verify placement and housing condition during a quick inspection.

• Found in a rectangular airbox with clips or screws
• Positioned ahead of the MAF sensor and turbo inlet
• Accessible after removing the airbox cover in the engine bay

The cabin air filter is located behind the glove box in the HVAC housing on most 2022 Mercedes-Benz GLS-Class SUVs.

This placement allows the filter to scrub incoming air for pollen, dust, and road particulates before it reaches the vents. Because panels and trim may need careful removal, many owners prefer a professional installation to ensure proper sealing and avoid rattle or fitment issues. We can replace it during the same visit as your engine air filter in Lynnfield.

• Mounted upstream of the blower to clean cabin airflow
• Often requires glove box/trim removal for access
• Helps reduce odors and allergens for North Shore commutes

The engine air filter protects the 3.0L turbo engine’s intake, while the cabin air filter cleans HVAC air for passengers.

On the GLS-Class, the engine filter keeps particulates out of the MAF sensor and turbocharger for consistent performance and efficiency. The cabin filter targets dust, pollen, and debris entering through the cowl so the HVAC system delivers cleaner air. Both are essential but serve different systems with different media and airflow paths.

• Engine: upstream of intake/MAF to protect combustion components
• Cabin: in HVAC housing to improve in-vehicle air quality
• Different media, dimensions, and replacement procedures

Three common signs are reduced acceleration, lower fuel economy, and a rougher idle.

Restricted airflow makes the 3.0L inline-6 turbo work harder, which you may notice as hesitation or slower throttle response. Over time, a dirty element can skew MAF readings and impact drivability. If you see these symptoms in Greater Boston traffic or on Route 1, have us inspect the airbox seal, filter media, and intake path.

• Sluggish power delivery, especially during highway merges
• Noticeable MPG decline compared with your normal baseline
• Unusual intake noises or extra turbo effort under load

Four signs are weak HVAC airflow, persistent window fogging, musty odors, and more visible dust from vents.

A saturated cabin filter restricts the blower and can make defogging slower on humid or rainy North Shore days. Odors may linger because the media can no longer trap contaminants effectively. Replacing the filter restores airflow and helps the climate control work as designed.

• Fan works harder but airflow feels reduced at the vents
• Foggy windows take longer to clear
• Stale or musty smell when HVAC first turns on

Yes—engine filters are often DIY-friendly, but the cabin filter may require trim removal and careful resealing.

DIY owners with basic tools can usually handle the engine airbox. The cabin filter, tucked behind the glove box, can be more intricate and benefits from proper panel handling to avoid squeaks or gaps. Dealer service adds OEM-spec parts, an intake/MAF visual check, and disposal, with convenient online booking and current offers.

• Engine: quick access under the airbox cover
• Cabin: behind-glove-box access with trim clips/screws
• Book online: schedule service and view service specials

Yes—Mercedes-Benz of Lynnfield installs Genuine Mercedes-Benz OEM filters that meet factory specifications.

Using OEM elements ensures the correct media, fitment, and seal for the GLS-Class intake and HVAC systems. That consistency helps protect the turbocharged 3.0L engine and maintains proper cabin airflow and filtration. If your filters are due, we can install the exact parts engineered for your vehicle.

• Genuine Mercedes-Benz parts for precise fit
• Maintains intake seal and MAF accuracy
• Optimized for the GLS-Class HVAC ducting and blower

Book online using our schedule service tool or visit us at 385 Broadway (Route 1 North), Lynnfield, MA 01940.

Online scheduling lets you choose a time that works and see available options for engine and cabin filter replacements. You can also review current offers before your visit. Our modern facility serves the North Shore and Greater Boston with efficient, OEM-spec care for the 2022 Mercedes-Benz GLS-Class.

• Convenient online appointment selection
• Address: 385 Broadway, Lynnfield, MA 01940
• Check service specials before you book

Our air filter service for the 2022 Mercedes-Benz GLS-Class covers both systems that keep your SUV running strong and breathing clean. We begin with an engine airbox inspection, verifying housing integrity, clips, and ducting before removing the filter. The technician checks for debris, verifies the mass airflow (MAF) sensor area is clean, and installs a new OEM-spec element with the correct orientation and seal. For the cabin, we access the HVAC housing behind the glove box, remove the used filter, clear any trapped debris, and fit a fresh OEM cabin filter to restore airflow and odor control. Final steps include reassembly, a visual intake path check, and function verification for the HVAC and intake. Ready to go? Use our online tool to schedule service today.

Serving Peabody, Wakefield, Saugus, Danvers, Swampscott, Salem, Reading, and Boston, our Lynnfield Service Center makes filter maintenance straightforward. Seasonal pollen, construction dust, and stop‑and‑go commutes around Greater Boston can load filters faster than expected. During each visit, we evaluate engine and cabin elements for contamination, seal condition, and proper fit, then replace with Genuine Mercedes-Benz parts as needed. You’ll find us at 385 Broadway (Route 1 North), Lynnfield, MA 01940, moments from major North Shore routes. Have questions or want to plan your visit around current offers? View our service specials and then schedule service at your convenience.

The 2022 Mercedes-Benz GLS-Class uses a sealed engine airbox feeding its 3.0L inline-6 turbo (engine code 6ITCM3.0) and a dedicated HVAC housing for the cabin filter. Genuine Mercedes-Benz filters provide the correct media density, pleat geometry, and gasket profile to maintain MAF accuracy, turbo protection, and quiet HVAC operation. Replacing clogged elements supports the GLS-Class’s rated output (362 hp at 5,500 rpm; 369 lb-ft at 1,600 rpm) and helps keep in-cabin air fresher for family trips and daily commutes. If you notice reduced acceleration, increased fuel consumption, weak HVAC airflow, or musty odors, it’s time for an inspection and likely replacement. Bring your 2022 Mercedes-Benz GLS-Class to Mercedes-Benz of Lynnfield in Lynnfield for OEM-spec filter service — schedule service.