Walker Products 245-1260 mass air flow sensor for the 1999-2003 BMW M5 V8 4.9L, the 2000-2003 M5 V8 5.0L and other vehicles measures the air entering the engine and sends that reading to the ECU. Accurate airflow data helps the ECU set the air-fuel mix for fuel efficiency.
- Programmed and tested for fit, form and function before it is sold
- Custom engineered circuit board and programming
- Custom tuned flow characteristics across the full flow spectrum
- Calibrations pass 100% production testing and are verified on a vehicle
- Female connector with 5 terminals
Quick facts
- Part: Walker Products 245-1260 mass air flow sensor
- Fits: 1999-2003 BMW M5 V8 4.9L, the 2000-2003 M5 V8 5.0L and other vehicles
- Condition: New
A failing mass air flow sensor can show up as a rough idle, hesitation or a check engine light. Other faults, such as a vacuum leak, can look the same from the driver's seat, so trace the cause before you replace the sensor. With the engine off and cool, you can look over the connector and the intake tube around the sensor for damage; a shop can test the sensor itself.
Fits
It fits the 1999-2003 BMW M5 V8 4.9L, the 2000-2003 M5 V8 5.0L, the 2001-2003 BMW Z8 V8 4.9L and the 2000-2003 Z8 V8 5.0L.
Specifications
Fit and size
- Quantity per vehicle: 2 on the V8 4.9L, 1 on the V8 5.0L
- Terminal quantity: 5
- Connector gender: Female
Build and materials
- Type: mass air flow sensor assembly, housing not included
- Mounting hardware: included
- Condition: New
- Country of origin: China
In the box
One mass air flow sensor assembly with mounting hardware; the housing is not included. This listing is one sensor: the V8 4.9L takes two and the V8 5.0L takes one.
Installation notes
- Oil from your hands and even air pollution can damage the sensor.
- Replacing only the sensor is typically faster than replacing the full housing assembly, though some vehicle manufacturers recommend the full housing to keep the connector air tubes clean.
- The sensor is designed for straightforward installation to keep vehicle downtime short.
Interchange: 74-10221 · 64-1751
5S2611 · 13621433566 · 1433566 · 0280217533 · 19472 · SU5384
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
5S2611, 13621433566, 1433566, 0280217533, 74-10221, 64-1751, 641751, 19472, SU5384
Frequently Asked Questions
Is this the BMW M5 mass air flow sensor for the 1999-2003 M5 V8 4.9L?
Yes. Walker Products 245-1260 fits the 1999-2003 BMW M5 V8 4.9L, and the 2000-2003 M5 V8 5.0L takes it too.
Does the Walker Products mass air flow sensor come with its housing?
No. Walker Products 245-1260 is the sensor assembly with mounting hardware. The housing is not included.
What kind of connector does this mass air flow sensor have?
This mass air flow sensor has a female connector with 5 terminals.
What can a worn mass air flow sensor cause?
Signs can include a rough idle, hesitation or a check engine light. Testing the sensor needs the engine running, so a shop can do it.
Can oil from my hands damage this mass air flow sensor?
Yes. Oil from your hands and even air pollution can damage the sensor, so handle it with care during installation.
