BMW F01 Throttle Body Throttle Unit 750i F10 550i M5 Petrol 7555944

BMW F01 Throttle Body Throttle Unit 750i F10 550i M5 Petrol is an original intake system component designed for high-end and sports BMW petrol engines. The throttle body is responsible for the precise dosing of air into the cylinders, which translates into stable engine operation, correct throttle response, and predictable performance. Thanks to the factory BMW design, this component ensures consistency with the factory engine management system and proper cooperation with the vehicle's electronics.

Specifications and technical data

• SKU: 7555944
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555944
• Substitutable numbers: 7555944, 13547555944
• Fuel type: Petrol
• Category: Throttle Bodies

Purpose and function in a petrol engine

The throttle body in BMW F01 and F10 models, as well as 550i, 750i, and M5 variants, plays a key role in managing the amount of air drawn in by the petrol engine. This component works with the engine control system, sensors, and injection maps to:

• maintain stable idle speed,
• ensure smooth response to accelerator pedal input,
• maintain the correct air-fuel mixture ratio,
• reduce unwanted power fluctuations and jerking during acceleration.

For high-power petrol engines used in the 550i, 750i, and M5, a properly functioning throttle body is particularly important as it influences performance repeatability and engine refinement across the entire rev range.

Advantages of using an original BMW throttle body

Using an original BMW throttle body in the intake system allows for maintaining engine operating parameters in accordance with the manufacturer's factory specifications. In practice, this means:

• precise fitment to the intake manifold and engine accessories,
• proper cooperation with the factory engine control unit software,
• preservation of the acceleration characteristics intended for the 550i, 750i, and M5 versions,
• reduction of the risk of control unit errors resulting from incorrect throttle position readings.

As a result, replacing a worn-out component with an original throttle body from this series allows for restoring stable engine operation without the need for modifications to the installation or software.

Operational characteristics and installation

The throttle body from this group is structurally prepared to operate under the demanding thermal and mechanical conditions typical of powerful BMW petrol engines. The component is intended for installation in the factory location, using original mounting points and electrical connectors. This facilitates:

• maintaining the intake system in a configuration consistent with the BMW design,
• reducing the time required for replacement,
• minimizing the risk of leaks in the intake area.

With proper installation and adaptation in the engine control unit, the throttle body allows for the quick restoration of correct petrol supply system operation, without the need for additional modifications.

Selecting a throttle body for a specific BMW model

Due to the specificity of the engines used in the BMW F01, F10, and the 550i, 750i, and M5 versions, it is worth verifying the compatibility of the throttle body with the specific engine configuration and vehicle model year before purchase. Comparing technical data and markings with the existing component is helpful to ensure full compatibility with the control system and accessories.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other items from the same group, such as additional throttle bodies, control elements, or related intake components, check the available parts in the BMW Throttle Bodies category.

Technical support and practical knowledge

When diagnosing problems with the petrol supply system – such as fluctuating idle, power loss, or delayed throttle response – it is worth considering both the condition of the throttle body and other engine accessories. For drivers interested in a broader context of component operation in the drivetrain, the guide article When is it worth replacing an alternator with a used one: a practical guide for drivers, which discusses the practical aspects of selecting and installing used components in a car, may be helpful.