Air Mass Sensor - Ci Ignition - QM606
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eBayAir Mass Sensor QM606 CI Flow Meter 1703275 1703650 13621703275 13621703650 New
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Product Information
Full details
This Ci Ignition Air Mass Sensor (QM606) is designed for BMW 3 Series (E36/E46) petrol models from 1990-2000, offering a reliable replacement for your original unit. Its key benefit is restoring accurate air-fuel mixture for optimal engine performance and fuel economy. A potential caveat is the need for careful installation to ensure proper sealing and sensor function. This sensor features a direct-fit design, a robust housing, and replaces BMW part numbers 13621703275 and 1703650, among others.
All features
| Model Part Number | QM606 |
|---|---|
| Brand | Ci Ignition |
Extended Product Information
FAQs
How do I know if my Air Mass Sensor needs replacing?
Common symptoms include rough idling, hesitation during acceleration, poor fuel economy, stalling, and a Check Engine Light often accompanied by specific diagnostic trouble codes (e.g., P0100-P0104).
Is this sensor a direct fit for my BMW 3 Series?
This sensor (QM606) is designed for specific petrol engine BMW 3 Series (E36/E46) models from 1990-2000. It's crucial to verify your vehicle's exact model and year against the listed compatibility or use a vehicle fitment tool.
What does the Air Mass Sensor do?
It measures the amount of air entering the engine's intake manifold and sends this data to the Engine Control Unit (ECU). The ECU then uses this information to calculate the precise amount of fuel needed for optimal combustion.
Can I install this myself?
Yes, installation is generally straightforward for DIYers with basic mechanical knowledge, as it's a direct replacement part. However, ensure proper handling and sealing of the intake tract.
Does this sensor come with a warranty?
Warranty information typically varies by retailer. Please check the product listing or contact the seller for specific warranty details.
What is the difference between this QM606 and my original BMW sensor?
The QM606 is an aftermarket replacement designed to meet or exceed the original equipment (OE) specifications for the BMW part numbers it replaces (e.g., 13621703275, 1703650). It offers the same functionality and fit.
Are there any special tools required for installation?
Typically, you will need basic hand tools such as screwdrivers or socket wrenches to access and remove the old sensor and install the new one. An OBD-II scanner may be needed to clear fault codes afterward.
Troubleshooting
Engine runs rough or stalls after installation
Ensure the electrical connector is fully seated and locked. Check for any air leaks in the intake tract around the sensor housing. Verify the sensor is correctly oriented.
Check Engine Light remains on
Clear the fault codes using an OBD-II scanner. If the code reappears, re-inspect the installation, check for vacuum leaks, or consider if another engine issue is present.
Poor performance persists
Confirm that the correct part number was ordered and installed for your specific vehicle. Check the air filter and ensure there are no blockages in the intake system beyond the sensor.
Pros and Cons
Pros
- Ensures accurate engine performance by precisely measuring airflow.
- Direct replacement for specific BMW 3 Series models, simplifying installation.
- Helps to resolve common engine issues like rough idling and poor acceleration.
- Contributes to improved fuel economy by optimizing the air-fuel ratio.
- Replaces several OE part numbers for broader compatibility.
Cons
- Requires professional installation or mechanical knowledge for correct fitment.
- Compatibility is limited to specific BMW 3 Series petrol models and years.
- May require recalibration in some specific vehicle applications (though typically plug-and-play).
- Potential for damage if not handled carefully during installation.
Setup, Compatibility & Care
Compatibility: This Air Mass Sensor (QM606) is specifically designed for petrol engine BMW 3 Series models, including E36 and E46 chassis, such as the 323i, 325i, and 328i, manufactured between 1990 and 2000. Always verify compatibility using the vehicle's make, model, and year, or consult a professional if unsure.
Setup: Installation requires locating the mass air flow sensor in the intake tract, typically between the air filter box and the throttle body.
- Disconnect the battery's negative terminal.
- Carefully unplug the electrical connector from the old sensor.
- Unclamp or unbolt the old sensor housing.
- Remove the old sensor.
- Install the new Ci Ignition QM606 sensor and its housing.
- Ensure all seals are properly seated to prevent air leaks.
- Reconnect the electrical connector.
- Reconnect the battery's negative terminal.
Care: The sensor element is delicate. Avoid touching it directly. Ensure the air intake system is clean before installation to prevent debris from contaminating the sensor. Regularly check and clean the air filter to maintain optimal airflow and prevent premature sensor fouling.