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This Hella Mass Air Flow (MAF) Sensor, part number 8ET 009 142-331, is designed for Mercedes-Benz SLK (R170) and C-Class (W203/CL203) models from the early 2000s. It offers OE-quality manufacturing for reliable air intake measurement, crucial for optimal engine performance and fuel efficiency. A key caveat is the need to verify exact vehicle specifications and measurements before purchase, as variations can exist.
| Model Part Number | 8ET 009 142-331 |
|---|---|
| Brand | Hella |
A MAF sensor measures the amount of air entering the engine and sends this data to the Engine Control Unit (ECU). The ECU uses this information to adjust the fuel injection, optimizing the air-fuel ratio for better performance and fuel economy.
Common symptoms include a Check Engine Light, rough idling, stalling, poor acceleration, decreased fuel efficiency, and unusual engine noises.
This sensor (8ET 009 142-331) is listed for specific Mercedes-Benz SLK (R170) and C-Class (W203/CL203) models. Always verify your vehicle's exact specifications and measurements against the product details before purchase.
While possible with specialized MAF sensor cleaner spray, it's generally not recommended for modern sensors as the element is delicate. If you choose to clean it, use only the correct cleaner and follow instructions precisely. Improper cleaning can damage the sensor.
Hella manufactures this sensor to OE-quality standards, meaning it is designed to perform and fit like the original part. It provides a reliable and cost-effective alternative to OEM parts.
The part number is 8ET 009 142-331. It features a bolted mounting type, has 5 pins, and an induction pipe connector diameter of 70mm.
First, ensure the electrical connector is securely attached. Then, clear the fault codes with an OBD-II scanner. If the light reappears, double-check the vehicle compatibility and sensor installation, or consider other potential engine issues.
Ensure the electrical connector is fully seated and locked. Re-verify vehicle compatibility. Clear the fault codes using an OBD-II scanner and see if they return.
Confirm the MAF sensor is correctly installed and the air intake system is sealed. Check for vacuum leaks. Clean the MAF sensor element with specialized MAF cleaner if necessary (use with caution).
Verify the MAF sensor is the correct part for your vehicle. Ensure the air intake hose is properly connected and sealed. Check other engine components like spark plugs and fuel injectors.
A faulty MAF sensor can cause incorrect fuel mixture. Ensure proper installation and compatibility. If the issue persists, consult a mechanic to rule out other causes.
Compatibility Verification: Before purchasing, it is crucial to verify that this Hella MAF Sensor (Part Number: 8ET 009 142-331) is compatible with your specific vehicle. Check your vehicle's make, model, year, and engine type against the provided compatibility list. Pay close attention to the 'IMPORTANT: Check measurements & dimensions' notes, as variations can occur even within the same model range. Confirm the number of pins (5) and the induction pipe connector diameter (70mm) match your existing sensor.
Installation: Installation typically involves unbolting the old MAF sensor from the air intake system, disconnecting its electrical connector, and replacing it with the new Hella sensor. Ensure the electrical connector is securely attached. It is recommended to consult your vehicle's service manual or seek professional assistance if you are not experienced with automotive sensor replacement.
Care: MAF sensors are sensitive components. Avoid spraying cleaning agents directly onto the sensor element. If cleaning is necessary (which is generally not recommended for modern MAF sensors unless specified by a professional), use specialized MAF sensor cleaner spray only, following the product instructions carefully. Ensure the air filter is clean and properly seated to prevent dirt and debris from reaching the MAF sensor.
