Walker Products 245-2147 mass air flow sensor for the 1997-1998 BMW 540i V8 4.4L and other vehicles measures incoming air for the ECU. Walker Products mass air flow sensor calibrations continue to meet or exceed OE long-term fuel trim percentages.
- Sensor programmed and tested before sale
- Custom engineered circuit boards and programming
- Flow characteristics custom tuned for the full flow spectrum
- Calibrations pass 100% production testing and on-vehicle verification
- Four-terminal female connector
Quick facts
- Part: Walker Products 245-2147 mass air flow sensor
- Fits: 1997-1998 BMW 540i V8 4.4L and other vehicles
- Condition: New
A rough idle, hesitation or poor fuel economy can mean the mass air flow sensor is failing. A clogged air filter, an intake air leak or a worn oxygen sensor can be behind these signs as well, so find what is producing them before you buy. If the sensor is the cause, this one replaces it.
Fits
The 1997-1998 BMW 540i V8 4.4L, the 1993-1995 BMW 740i V8 4.0L, the 1993-1995 BMW 740iL V8 4.0L and the 1996-1998 740iL V8 4.4L are all covered by this direct-fit replacement mass air flow sensor, and other BMW models fit too. If your BMW is not named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Terminal quantity: 4
- Connector gender: female
Build and materials
- Condition: New
- Country of origin: China
In the box
One mass air flow sensor with replacement Torx screws and the corresponding tools. This listing is one sensor, and the vehicle takes one. The housing is not included.
Installation notes
- Some vehicle manufacturers recommend replacing the complete housing assembly to make sure the connector air tubes are clean.
- Oils on your hands or even air pollution can damage the sensor itself.
- Designed for easy, straightforward installation.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Will the Walker Products 245-2147 work as a BMW 540i mass air flow sensor on a 1997-1998 540i V8 4.4L?
Yes. Walker Products 245-2147 fits the 1997-1998 BMW 540i V8 4.4L. For another year or engine, look in the "Vehicles it fits" section.
Is this a BMW 740i mass air flow sensor for the 1993-1995 740i V8 4.0L?
Yes. Walker Products 245-2147 fits the 1993-1995 BMW 740i V8 4.0L, and this listing is a single sensor.
Does this mass air flow sensor come with its own screws?
Yes. It comes with replacement Torx screws and the corresponding tools. The housing is not included.
How many terminals does the Walker Products 245-2147 connector have?
Walker Products 245-2147 has a female connector with 4 terminals.
Can I replace just the sensor and leave the housing in place?
This listing is the sensor only. Some vehicle manufacturers recommend replacing the complete housing assembly so the connector air tubes are clean.
