BMW E60 E87 E90 Diesel M47 M57 Intake Hot Air Flow Meter 7788744

BMW E60 E87 E90 Diesel M47 M57 Air Flow Meter 7799863 is an original intake system component from the BMW group, designed for diesel engines. As a part from the Intake Manifolds category, it works with the air supply system, supporting stable engine operation and correct fuel dosage in Diesel engines.

Specifications and technical data

• SKU: 7788744
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7788744
• Substitutable numbers: 13627788744, 7788744, 0 928 400 504, 0928400504, 0928400529
• Fuel type: Diesel
• Category: Intake Manifolds

Application in BMW Diesel M47 and M57 Engines

The air flow meter is designed for installation in popular BMW units from the M47 and M57 families used in E60, E87, and E90 series models. The component works with the intake system, which in these designs is closely linked to the intake manifold, fuel dosage control, and the turbocharging system. A properly functioning air flow meter allows the engine control unit to precisely select the amount of injected fuel, which translates to smoother operation, better flexibility, and predictable performance.

Technical and Functional Characteristics

As a component of the air supply system in a diesel engine, the air flow meter works with boost pressure sensors, the turbocharger, and the intake manifold. In M47 and M57 Diesel engines, this is particularly important because:

• it influences stable idle speed and smooth acceleration,
• it supports the correct operation of the exhaust gas recirculation system,
• it enables the engine control unit to optimize fuel dosage for consumption and dynamics,
• it reduces the risk of smoking under load through accurate air mass measurement.

A properly selected air flow meter in a system with a BMW intake manifold helps maintain operating parameters close to factory settings, which is important for both daily driving and long-distance highway journeys.

Condition, Origin, and Benefits of Installation

The offered component is a used part, originating from an original BMW intake system. Choosing such a component is a sensible solution for users who want to maintain the factory engine characteristics while optimizing service costs. The air flow meter from this offer is designed for units powered by Diesel fuel, ensuring structural compatibility with the factory engine equipment.

Replacing a worn air flow meter with a functional unit typically allows for:

• reducing power fluctuations and jerking during acceleration,
• improving throttle response,
• stabilizing engine operation across the entire RPM range.

Integration with the Intake System and Intake Manifold

In BMW E60, E87, and E90 designs, the air flow meter is an integral part of the air path leading to the intake manifold. Proper installation and sealed connections are crucial for the operation of the entire system. Using an original component from the same family as the factory BMW intake manifolds reduces the risk of fitting problems and simplifies servicing.

For workshops and users, this means:

• easier part identification due to compliance with BMW factory standards,
• a lower risk of installation errors compared to aftermarket parts of uncertain origin,
• consistent operating parameters with the vehicle manufacturer's specifications.

Technical Support and Additional Materials

If you are looking for other BMW intake manifolds or components from this group for various models, check out our dedicated category: BMW intake manifolds. There you will find a wide selection of components tailored to many engine versions.

Are you planning a broader upgrade of the intake or exhaust system in your BMW and want to better understand the relationships between the manifold, air flow meter, and exhaust system? See practical tips in the article: Performance Exhaust System: Used Manifolds and Sport Catalytic Converters on the Road, where we discuss, among other things, the selection of used manifolds in premium vehicles.

If you treat your BMW from the years 1998–2012 as a youngtimer and plan a gradual restoration based on proven used parts, the guide: Second Life for a Youngtimer – How Used Car Parts Revitalize Cars from 1998–2012, where we describe modernization scenarios using original components, may also be helpful.