Throttle Body Mercedes W221 Petrol Engine M273 M152 Throttle Flap A2731410325

Mercedes W221 Gasoline M152 M273 Throttle Body A2731410325 is an original part from the Throttle Bodies category, designed for M152 and M273 series gasoline engines in the S-Class W221 model. A used OEM throttle body ensures proper control of the amount of air drawn into the engine, which translates to stable engine operation, correct throttle response, and proper interaction with the vehicle's electronics. This is a solution for users who expect factory fitment and performance parameters consistent with the manufacturer's standards.

Specifications and technical data

• SKU: A2731410325
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2731410325
• Substitutable numbers: A2731410325, A 273 141 03 25, 0280750182, 0 280 750 182
• Fuel type: Petrol
• Category: Throttle Bodies

Purpose and Function in the Intake System

The throttle body in M152 and M273 gasoline engines is responsible for the precise dosing of air supplied to the intake manifold, in accordance with signals from the engine control module. A properly functioning component of this type stabilizes idle speed, affects smooth acceleration, and enables the correct operation of emission control systems. The use of an original component is particularly important in higher-power units, where the accuracy of airflow control directly impacts engine smoothness and durability.

Compatibility with Gasoline Engines

The presented throttle body is designed to work with gasoline engines, meaning it is adapted to the characteristics of spark ignition, fuel injection maps, and mixture control strategies in M152 and M273 units. This ensures compatibility with factory control unit settings, and the accelerator pedal response remains predictable and consistent with the manufacturer's intentions. Proper adaptation to a specific engine family reduces the risk of diagnostic errors and adaptation problems within the control system.

Characteristics of a Used Part

The throttle body offered as a used part is a solution for users seeking an original part within a reasonable budget. This type of component, sourced from disassembly, retains its factory construction and geometry, which facilitates installation in place of a worn or damaged part. A used throttle body allows for the restoration of correct intake system operation without the need for aftermarket replacements with uncertain parameters.

Benefits of Using an Original Throttle Body

• Factory fitment for M152 and M273 units in the W221 model, without the need for installation modifications.
• Consistent interaction with the engine control electronics, reducing the risk of errors and limp mode.
• Ability to restore stable idle speed and predictable throttle response.
• Cost-effective solution due to the use of a used part while maintaining OEM construction.

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 throttle body housings, throttle body control modules, or additional intake system components, check the available parts in the Mercedes Throttle Bodies category.

For drivers interested in a broader approach to road safety and visibility, a guide might be useful – find more information on selecting and operating lighting components in the article See More and Better – A Complete Guide to Selecting and Replacing Used LED and Xenon Headlights.