Mercedes W205 M177 Air Filter Box Damper Housing Right O/S A1770901401

Mercedes W205 M177 Air Filter Box Damper Housing Right O/S is an original intake system component designed for petrol engines, specifically engineered for Mercedes W205 series models with the M177 engine. This used, fully functional housing ensures stable mounting of the filter element, proper airflow guidance, and maintenance of factory engine performance parameters, which translates into efficient engine breathing and predictable performance. Thanks to its precise fit for the right side of the engine bay, it serves as a hassle-free replacement for a damaged component in the factory configuration.

Specifications and technical data

• SKU: A1770901401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1770901401
• Substitutable numbers: A1770901401, A 177 090 14 01
• Location on the vehicle: Right
• Fuel type: Petrol
• Category: Air Filter Housings

Purpose and function in the intake system

The right-side air filter housing is responsible for the airtight guidance of air sucked into the engine and the stable seating of the filter element. In M177 petrol engines, this is crucial for:

• maintaining proper airflow to the turbochargers and intake manifold,
• protecting the engine interior from external contaminants,
• maintaining correct air-fuel mixture values,
• reducing power drops resulting from leaks or deformation of the housing.

A properly selected air filter housing is particularly important in high-performance engines, where stable airflow affects refinement, throttle response, and component durability.

Vehicle fitment and right-side configuration

The presented housing is designed for installation on the right side of the engine bay, in accordance with the factory intake system in the Mercedes W205 with the petrol-powered M177 unit. This means that:

• the housing geometry is adapted to the serial layout of components in the engine bay,
• mounting points correspond to factory brackets and supports,
• it is designed to work with standard intake ducts and connection ports.

Such fitment facilitates installation and allows for maintaining the original architecture of the intake system without the need for modifications or the use of additional adapters.

Operational characteristics of the used component

The housing comes from the secondary market, which means it shows signs of normal wear but remains in a condition that allows for further use as intended. In practice, this means that:

• it retains its protective function and structural integrity after proper installation,
• it is suitable as an economical solution for accident repairs or replacing a damaged housing,
• it allows for maintaining the factory specification of the intake system without investing in a new part.

For many users, this represents a reasonable compromise between repair costs and maintaining original Mercedes brand components in the vehicle.

Benefits of using an original air filter housing

Using a factory air filter housing in a Mercedes W205 with an M177 engine brings a number of practical benefits:

• certainty of compatibility with the intake system and engine accessories,
• maintenance of the airflow characteristics intended by the manufacturer,
• reduction of the risk of installation errors typical of universal solutions,
• maintaining the structural consistency of the engine bay, which facilitates service and diagnostics.

Thanks to this, replacing a damaged housing with a component of this type allows for restoring stable operating conditions for the petrol engine without interfering with other components.

Related Mercedes intake system components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional housings, intake ducts, or air supply hoses, check out the available parts in the Mercedes Air Filter Housings category.

To better plan service work on the powertrain and understand the relationships between drivetrain components and engine load, it is worth checking out our practical guide: Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain.