OE Quality
60-Day Returns

Vemo V20-72-5147 Mass Air Flow Sensor
Overview of the Vemo Mass Air Flow Sensor V20-72-5147
The Vemo Mass Air Flow Sensor V20-72-5147 is designed for precise air measurement in BMW vehicles, including the 540i, 740i, 740iL, and 840Ci models. This sensor plays a critical role in maintaining optimal engine performance and emissions control.
- Height: 90 mm
- Length: 157 mm
- Width: 137 mm
- Weight: 0.322 kg
- Recommended additional repair: Air filter replacement
VEMO Brand Line and Product Quality
The VEMO brand line specializes in emission control sensors engineered for accuracy and durability. This mass air flow sensor is part of VEMO's commitment to providing reliable components that meet OEM specifications, ensuring compatibility and consistent performance in BMW vehicles.
Detailed Product Description
The Vemo Mass Air Flow Sensor V20-72-5147 measures the volume and density of air entering the engine, which is essential for the engine control unit to calculate the correct fuel injection. With dimensions of 157 mm in length, 137 mm in width, and 90 mm in height, this sensor fits precisely within the air intake system of select BMW models. Weighing 0.322 kg, it is engineered to maintain the balance between durability and responsiveness. The sensor’s design supports accurate airflow readings, which help optimize combustion efficiency and reduce emissions.
Common Applications and Issues Addressed
- Restores accurate air intake measurement for BMW 540i, 740i, 740iL, and 840Ci
- Helps resolve engine hesitation or rough idling caused by faulty airflow data
- Improves fuel economy by ensuring proper air-fuel mixture
- Reduces emissions by supporting effective engine management
- Prevents check engine light triggers related to air flow sensor faults
Installation Notes and Tips
When installing the Vemo Mass Air Flow Sensor V20-72-5147, it is recommended to also inspect and replace the air filter to maintain optimal airflow and sensor performance. Ensure the sensor is securely connected and free of contaminants. Proper handling during installation will help avoid damage to the sensor’s sensitive components.
Quality Assurance and Warranty
Vemo products are manufactured to meet strict quality standards and OEM specifications. While specific warranty details are not provided here, Vemo sensors typically come with manufacturer-backed quality assurance to support reliable operation in BMW vehicles.
| Brand | Vemo |
| Part Number | V20-72-5147 |
| Position | VEMO |
| Height [mm] | 90 |
| Length [mm] | 157 |
| Recommended additional repairs | Air filter |
| Weight [kg] | 0.322 |
| Width [mm] | 137 |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1998 | BMW | 540i | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1998 | BMW | 740i | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1998 | BMW | 740iL | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1997 | BMW | 540i | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1997 | BMW | 740i | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1997 | BMW | 740iL | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1997 | BMW | 840Ci | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1996 | BMW | 740iL | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1996 | BMW | 840Ci | Base | 4.4L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1995 | BMW | 540i | Base | 4.0L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1995 | BMW | 740i | Base | 4.0L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1995 | BMW | 740iL | Base | 4.0L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1995 | BMW | 840Ci | Base | 4.0L | V8 | N/A | Brake Light Switch with 4 Pin Connector.; VEMO |
| 1994 | BMW | 540i | Base | 4.0L | V8 | N/A | Grade: Aftermarket; Plug (Connector): 4 Pins; Air Flow Meter; VEMO |
| 1994 | BMW | 740i | Base | 4.0L | V8 | N/A | Grade: Aftermarket; Plug (Connector): 4 Pins; Air Flow Meter; VEMO |
| 1994 | BMW | 740iL | Base | 4.0L | V8 | N/A | Grade: Aftermarket; Plug (Connector): 4 Pins; Air Flow Meter; VEMO |
| 1994 | BMW | 840Ci | Base | 4.0L | V8 | N/A | Grade: Aftermarket; Plug (Connector): 4 Pins; Air Flow Meter; VEMO |
| 1993 | BMW | 740i | Base | 4.0L | V8 | N/A | Grade: Aftermarket; Plug (Connector): 4 Pins; Air Flow Meter; VEMO |
| 1993 | BMW | 740iL | Base | 4.0L | V8 | N/A | Grade: Aftermarket; Plug (Connector): 4 Pins; Air Flow Meter; VEMO |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.