Mercedes W164 W221 Air Intake Inlet Manifold M273 Petrol Engine A2731400701

The Mercedes W164 W221 Intake Manifold M273 Gasoline is an original intake system component designed for M273 gasoline engines in the premium class models of the Mercedes brand. The precise geometry of the intake runners ensures stable air supply to the cylinders, which translates to smooth engine operation and correct torque characteristics. This solution is dedicated to users who expect factory fitment and preservation of original engine parameters.

Specifications and technical data

• SKU: A2731400701
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2731400701
• Substitutable numbers: A2731400701, A 273 140 07 01
• Fuel type: Petrol
• Part type: Intake Manifold
• Category: Intake Manifolds

Purpose and Function in the Intake System

The intake manifold in an M273 engine is responsible for evenly distributing air to all cylinders, stabilizing airflow, and cooperating with the engine control system. In gasoline engines, this is crucial for proper mixture combustion, idle smoothness, and throttle response.

The design of this component is optimized for gasoline engines, allowing for proper cylinder filling across the entire RPM range. This enables the engine to maintain its factory power and torque characteristics, and the control unit does not require additional adaptations beyond the standard service procedure.

Benefits of Using an Original Intake Manifold

Using an original intake manifold in a Mercedes with an M273 engine helps avoid problems typical of aftermarket replacements with imprecise runner geometry or poor fitment with the cylinder head and accessories. A component designed for a specific engine ensures:

• proper sealing of connections with the cylinder head and throttle body,
• correct air routing across the entire load range,
• stable operation of both cold and hot engines,
• compatibility with factory engine control unit maps.

For the user, this means predictable vehicle behavior, no undesirable power drops, and reduced risk of intake system-related error codes.

Installation and Operational Characteristics

The intake manifold in this series is structurally prepared to work with the accessories intended for the M273 engine in Mercedes W164 and W221 models. The appropriate placement of ports, mounting points, and interfaces with other intake system components facilitates installation in a workshop setting, without the need for modifications or adaptations.

With proper installation, using appropriate seals and following the service procedure, the manifold ensures long-lasting, stable operation under typical vehicle operating conditions. This is particularly important for higher-power gasoline engines, where air flow quality directly impacts performance and fuel consumption.

Application in Mercedes Vehicles

Intake manifolds used in M273 engines in W164 and W221 models are designed to maintain the high level of refinement and driving comfort typical of the Mercedes brand. Proper tuning of the intake system with the rest of the engine accessories allows for maintaining correct operating parameters in both city traffic and highway driving.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as intake manifolds, intake runner components, or intake housings, check the available parts in the Mercedes Intake Manifolds category.

Technical Support and Additional Knowledge

When selecting a used intake manifold for a gasoline engine, it is worth paying attention to compatibility with the specific engine version and accessory configuration. It is also good practice to familiarize yourself with the typical symptoms of wear in intake system components to correctly diagnose the cause of engine running problems.

If you want to better understand the relationships between the intake and exhaust systems and learn about the specifics of using used manifolds in premium cars, it is worth reading the article: Performance Exhaust System: Used Manifolds and Sport Catalytic Converters on the Road.

Additional information on how a wide range of used parts from a single warehouse can shorten your car's downtime at the mechanic can be found in the material: How a Wide Range of Parts in One Warehouse Actually Reduces Your Car's Downtime at the Mechanic.