Mercedes W169 M266 Turbo Air Intake Pipe Connector Intake Manifold A2660940211

The Mercedes W169 M266 Throttle Body Heater is a specialized intake system component from the Air and Fuel Intake Sensors group, designed for precise cooperation with the M266 unit in A-Class models. It is responsible for stabilizing the throttle body's operating conditions at varying temperatures, which promotes uniform engine fueling and correct control unit operation.

Specifications and technical data

• SKU: A2660940211
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2660940211
• Substitutable numbers: A2660940211, A 266 094 02 11
• Category: Air Intake & Fuel Sensors

Function and Role in the Intake System

The throttle body heater in the M266 engine is responsible for controlled warming of the throttle body area, which reduces the risk of condensate buildup and improves air-fuel mixing conditions. In practice, this translates to:

• more stable idle speed at low temperatures,
• more predictable response to the accelerator pedal,
• more efficient operation of the fuel metering control system.

For the engine control unit, a properly functioning heater is an important element of the entire measurement and actuation path related to airflow.

Compatibility and Fit for Mercedes W169 M266

The offered throttle body heater for Mercedes W169 with M266 engine is part of the factory solutions used in this powertrain. Thanks to this, it maintains compatibility with the unit's operating characteristics, injection maps, and throttle control logic.

The component is assigned to the Mercedes brand, which facilitates selection based on vehicle data and helps avoid problems typical of aftermarket replacements of uncertain origin. Proper fit is particularly important in the context of cooperation with other components from the Air and Fuel Intake Sensors category.

Condition, Verification, and Service Application

The heater is offered in Used condition, meaning it comes from an operated vehicle but is suitable for further use after proper installation. This type of part is often chosen as an economical solution for:

• resolving issues with unstable cold engine idle,
• diagnosing intake system malfunctions,
• preventive maintenance on high-mileage vehicles.

Due to the nature of the component, installation in a workshop experienced with Mercedes intake systems is recommended to ensure correct connection and airtightness of the entire air path.

Technical Support and Fuel System Knowledge

When working with intake and fuel supply systems, it is beneficial to understand the relationships between airflow, fuel delivery, and electronic control. The guide Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses diagnostics, selection of components by identification numbers, and operating principles, may be helpful.

Mercedes Air and Fuel Intake Sensors – Expansion and Modernization

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as air temperature sensors, airflow measurement elements, or fuel metering control components, check the available parts in the Mercedes Air and Fuel Intake Sensors category.