2014 Mercedes-Benz CLS-Class Air Filter in Sudbury, MA

The engine air filter sits in a sealed intake airbox in the engine bay of the 2014 Mercedes-Benz CLS-Class.

On the twin-turbo 5.5L V8, the filter element(s) are housed within the intake airbox assemblies toward the front of the compartment to feed clean air to the turbos. Access typically involves releasing fasteners and lifting the airbox cover. If you prefer professional help in Sudbury, you can schedule service with Mercedes-Benz of Sudbury for OEM-spec inspection and installation.

• Located within the intake airbox in the engine compartment
• Access via airbox cover fasteners or clips
• Keep debris out of the housing during inspection/replacement

The cabin air filter is positioned behind the glove box in the HVAC housing on the 2014 Mercedes-Benz CLS-Class.

Access commonly requires opening the glove box and removing a trim panel or damper to reach a slide-in filter cassette. Properly seating the new filter and its seals helps maintain airflow and filtration performance. If you’re near Route 20 in Sudbury, our team can perform a quick inspection and replacement using Genuine Mercedes-Benz filters.

• Behind the glove box inside the HVAC housing
• Often accessed via a slide-out tray/cassette
• Correct seal orientation prevents air bypass

The engine air filter cleans intake air for the 5.5L twin‑turbo V8, while the cabin air filter cleans air for the HVAC system and passengers.

The engine filter protects turbochargers, sensors, and cylinders from dust and debris, supporting performance and fuel economy. The cabin filter targets dust and allergens that enter through the ventilation system to keep interior air fresher. Both serve different systems and require separate inspections and replacements.

• Engine filter = combustion air; protects turbos and MAF
• Cabin filter = HVAC air; reduces dust, pollen, and odors
• Serviced independently based on condition and usage

Common signs include reduced power, poorer fuel economy, rough idle (engine filter), and weak airflow or musty odors (cabin filter).

As the 5.5L V8’s intake filter loads with debris, throttle response can fade and fuel consumption may rise. A clogged cabin filter can cause the fan to sound normal while airflow to vents drops, sometimes with a stale smell. If you notice these symptoms in the Sudbury area, book a quick inspection and schedule service.

• Noticeable drop in acceleration or responsiveness
• HVAC airflow weak despite fan speed
• Visible dirt/darkening on filter media

Many owners can DIY the engine filter, while the cabin filter may involve trim removal; dealer service adds OEM-spec parts and system checks.

For the 2014 Mercedes-Benz CLS-Class, the engine airbox typically opens with basic tools if you’re comfortable working underhood. Cabin filters often require glove-box panel work and careful seal placement. Dealer service in Sudbury includes intake/MAF visual checks, correct fitment, and disposal—plus up-front estimates and current service specials.

• DIY requires care to seat seals and avoid debris
• Dealer includes intake housing/MAF visual inspection
• Book online: schedule service

Yes—Mercedes-Benz of Sudbury installs Genuine Mercedes‑Benz engine and cabin air filters on the 2014 Mercedes‑Benz CLS‑Class.

Genuine parts match factory specifications for fit, filtration, and airflow integrity—important for the twin‑turbo V8’s performance and the cabin’s air quality. Parts selection is verified by VIN to ensure the correct filter for your specific build. Ask our team to review current availability when you schedule an appointment.

• Genuine Mercedes-Benz filters sourced through the dealership
• VIN-verified fitment for your CLS-Class
• Meets factory airflow and filtration standards

Follow the maintenance interval in the 2014 Mercedes‑Benz CLS‑Class owner’s manual, and inspect more often if driving conditions are dusty.

The twin‑turbo 5.5L V8 relies on unrestricted airflow, so periodic checks help preserve response and efficiency on Route 20 or Greater Boston commutes. If the media looks dark, torn, or contaminated, replace it regardless of mileage. For guidance and OEM parts, review service specials and schedule service with our team in Sudbury.

• Check condition during routine maintenance visits
• Replace early if contamination is visible
• Ensure the airbox lid seals evenly after service

Use the interval in your 2014 Mercedes‑Benz CLS‑Class maintenance booklet and replace sooner if airflow drops or odors develop.

Cabin filters load up based on driving environment; when airflow weakens or the cabin smells stale, replacement restores HVAC performance and clarity. Mercedes-Benz of Sudbury can quickly inspect and fit an OEM filter—charcoal media is available for added odor reduction. Book a visit online to keep your interior air fresh.

• Inspect at seasonal or mileage-based services
• Replace early for weak airflow or persistent odors
• OEM charcoal options help manage odors

For the 2014 Mercedes-Benz CLS-Class, our air filter service focuses on correctness, cleanliness, and verification. We begin with an engine air filter inspection, checking airbox fasteners and lid seals, then replace the filter with a Genuine Mercedes-Benz part if needed. Next, we inspect the cabin air filter behind the glove box, confirm the HVAC housing is clear of debris, and replace the media so airflow and filtration meet factory intent. Before reassembly, we perform an intake housing check and a visual Mass Air Flow (MAF) sensor inspection for contamination or loose connections. Post-service, we confirm proper seating of seals and clear any debris from the bay. Ready when you are—review service specials and schedule service.

The 2014 Mercedes-Benz CLS-Class pairs luxury with performance, and both filters contribute. The engine air filter is engineered to support the 5.5L V8 biturbo’s airflow while capturing particulates that can harm turbochargers and sensors. The cabin air filter sits in the HVAC stream to reduce dust and allergens entering the interior. Genuine Mercedes-Benz filters are designed for precise fitment and sealing in the W218 chassis, helping maintain correct mass‑air measurements and HVAC airflow. Replacement timing depends on use and environment; visual inspections are recommended, and replacement is advised when media is darkened or airflow is hindered. Bring your 2014 Mercedes-Benz CLS-Class to Mercedes-Benz of Sudbury in Sudbury for OEM-spec filter service — schedule service.

Located at 141 Boston Post Road, Route 20, Mercedes-Benz of Sudbury supports 2014 Mercedes-Benz CLS-Class owners throughout Sudbury, Concord, Framingham, Wellesley, and Greater Boston. Our team uses Genuine Mercedes-Benz filters and verifies airbox seals, HVAC housings, and related components to keep performance and in-cabin air quality on spec. You can start online: browse current service specials, compare options, and schedule an appointment that fits your day. For directions, enter our address in your maps app or visit our website for the latest hours. We’re ready to help you keep your 2014 Mercedes-Benz CLS-Class breathing clean air—under the hood and inside the cabin.