2020 Mercedes-Benz GLS-Class Air Filter in Lynnfield, MA

The engine air filter sits inside the sealed airbox in the engine bay, while the cabin air filter is mounted behind the glove box on the passenger side.

On the 2020 Mercedes-Benz GLS-Class, the airbox feeds the 3.0L turbocharged inline-6 and is accessed by releasing clips or screws on the housing. The cabin microfilter is positioned in the HVAC intake path behind the glove box trim. If you prefer professional installation in Lynnfield, our team can handle both quickly and to Mercedes-Benz specifications.

• Engine filter: open the airbox carefully to avoid damaging the intake ducting.
• Cabin filter: note the airflow arrow when inserting the new element.
• Use genuine Mercedes-Benz filters for exact fit and sealing.

The engine air filter protects the 3.0L inline-6 turbo by cleaning intake air, while the cabin air filter cleans HVAC air for passengers inside the SUV.

The engine filter helps maintain power and efficiency by keeping dust and debris away from the turbocharger and mass airflow path. The cabin filter, often with particulate and charcoal layers, reduces pollen, dust, and odors entering the interior. Replacing both on schedule preserves performance and comfort.

• Engine filter focus: combustion air cleanliness and sensor protection.
• Cabin filter focus: interior air quality and HVAC airflow.
• Both should be OEM to meet Mercedes-Benz specifications.

Common signs include reduced acceleration, lower fuel economy, and rough idle for the engine filter, plus weak HVAC airflow or musty odors for the cabin filter.

If the engine filter is restricted, the GLS-Class may feel sluggish as the turbo works harder to draw air. A dirty cabin filter can strain the blower motor and fog windows more easily. Visual inspection often reveals darkened pleats or trapped debris. If you notice these symptoms in Lynnfield, schedule a quick check.

• Engine: hesitation or more noticeable turbo lag under load.
• Cabin: decreased airflow from vents at the same fan setting.
• Visual: gray/black media and leaves or dust in the housings.

Yes—engine air filter replacement is typically DIY-friendly on the 2020 Mercedes-Benz GLS-Class, while the cabin filter may require trim removal and delicate clips.

Many owners can open the engine airbox and swap the panel element. The cabin filter involves glove box–area panels that benefit from trained hands. Dealer service at Mercedes-Benz of Lynnfield includes intake and MAF visual checks plus installation of genuine Mercedes-Benz filters. Book online any time.

• DIY engine filter: straightforward if you’re careful with airbox seals.
• Cabin filter: trim pieces and connectors are easier for a technician.
• Dealer visit adds OEM-spec parts and a quick systems check.

Yes—Mercedes-Benz of Lynnfield installs genuine Mercedes-Benz OEM engine and cabin air filters on the 2020 Mercedes-Benz GLS-Class.

Our Lynnfield Service Center uses exclusively genuine OEM Mercedes-Benz parts for precise fitment and reliable filtration. This helps maintain intake sealing, HVAC performance, and long-term durability. Check current offers before your visit and reserve a time online.

• Exact-fit housings and seals reduce unfiltered bypass air.
• Correct media and charcoal layers meet Mercedes-Benz specs.
• Documented on your repair order; view service specials.

Follow the Mercedes-Benz maintenance schedule in your owner’s manual for the 2020 Mercedes-Benz GLS-Class, replacing sooner if inspections show excess dirt.

Service intervals can vary based on driving patterns and road conditions. A quick inspection at each oil service helps catch premature loading that can affect turbo efficiency. Our technicians in Lynnfield can assess the filter’s condition and recommend OEM replacement when needed.

• Inspect at routine maintenance visits for discoloration or debris.
• Replace earlier if you drive on dusty or debris-prone routes.
• Use Mercedes-Benz Genuine Parts for correct filtration and fit.

Follow the factory maintenance schedule for the 2020 Mercedes-Benz GLS-Class cabin filter, and replace earlier if airflow weakens or interior odors develop.

Cabin microfilters trap fine particulates and odors, so their lifespan depends on exposure. If your vents feel weak at normal fan settings or defogging is slower, it’s time to inspect. Our Lynnfield team can test airflow and install the correct OEM element.

• Monitor vent output and window defogging performance.
• Activated charcoal media helps reduce common odors.
• Schedule a quick check online for your GLS-Class.

Air filter replacements are typically completed during a standard service appointment at Mercedes-Benz of Lynnfield.

The engine filter is a straightforward panel swap; the cabin filter adds glove box–area access, but both are finished in one visit. To align with your schedule, you can select an available time online and plan other routine services during the same appointment. We install genuine OEM filters and perform basic intake/HVAC checks.

• Combine with routine maintenance for one efficient visit.
• Reserve a time via our online scheduler.
• Review service specials before booking.

For the 2020 Mercedes-Benz GLS-Class, our air filter service follows a clear, OEM-based process. We verify the correct Mercedes-Benz Genuine Part for your VIN, then inspect the engine airbox for debris, cracked seals, or loose fasteners. The technician removes the engine air filter, checks the housing and intake tract, and installs a new OEM panel element if replacement is indicated. Next, we access the glove box area, inspect the cabin microfilter and HVAC intake, and fit a fresh OEM particulate/charcoal element as needed, aligning the airflow arrows correctly. A visual mass airflow (MAF) and intake check helps ensure consistent readings. We confirm housings are fully seated, clear any debris, and document findings on your repair order. Ready to go? Schedule service online, and review current service specials before you arrive.

The 2020 Mercedes-Benz GLS-Class uses an engine air filter designed for the 3.0L turbocharged inline-6 to protect the intake tract and support smooth airflow to the turbo and sensors. The cabin microfilter is a particulate/charcoal element that helps reduce dust and common odors while maintaining HVAC performance. Mercedes-Benz recommends following the factory maintenance schedule and inspecting both filters regularly; replacement timing varies by driving conditions. For best results, use Mercedes-Benz Genuine Parts engineered for precise fitment and sealing in GLS-Class housings. A clean engine filter supports throttle response and efficiency, while a fresh cabin filter improves airflow and comfort for all three rows. Bring your 2020 Mercedes-Benz GLS-Class to Mercedes-Benz of Lynnfield in Lynnfield for OEM-spec filter service — schedule service.

We serve Greater Boston and North Shore communities—including Peabody, Wakefield, Saugus, Danvers, Swampscott, Salem, Reading, and Boston—right from our modern facility at 385 Broadway (Route 1 North), Lynnfield, MA 01940. Factory-certified, OEM-trained technicians perform air filter inspections and replacements using genuine Mercedes-Benz parts to maintain GLS-Class performance and interior air quality. Whether you’re commuting into Boston or running family errands around Lynnfield, we’ll help keep your intake clean and your cabin air fresh. Get directions and plan your visit, then lock in a time that works for you. To reserve your spot now, use our online scheduler and don’t forget to check current service specials before you arrive.