Shopping.co.uk

Hella MAF Sensor - 8ET009149-421

Hella MAF Sensor - 8ET009149-421

This Hella Mass Air Flow Sensor (Part Number: 8ET 009 149-421) is manufactured to OE-quality stand...

Best current price£79.95from eBay

Best offers

Shopping.co.uk recommended and popular offers

Lowest priceMost popular
eBay£79.95Visit shop

Hella 8ET009149-421 Mass Air Flow Sensor Fits Mercedes C Class CLC Class CLK

Visit shop

All Offers

10 offers from £79.95 - £118.23

View price history by clicking the chart icon.

eBayHella 8ET009149-421 Mass Air Flow Sensor Fits Mercedes C Class CLC Class CLK
Free delivery in 1–3 days
£79.95
Visit shop

Product Information

Full details

This Hella Mass Air Flow (MAF) Sensor, part number 8ET009149-421, is designed for Mercedes-Benz owners seeking a reliable, OE-quality replacement part to ensure optimal engine performance. Its key benefit is precise air measurement for improved fuel efficiency and engine responsiveness. A potential caveat is the need for professional installation due to its specific fitment requirements. This sensor is manufactured to meet exacting standards, featuring a pipe-neck mounting type, 5 pins, and an 82mm induction pipe connector diameter, ensuring compatibility with specific Mercedes-Benz CLC-Class (CL203) and E-Class (S211) models.

All features

Model Part Number8ET009149-421
BrandHella

Extended Product Information

FAQs

How do I know if my MAF sensor needs replacement?

Symptoms of a failing MAF sensor include a check engine light, poor fuel economy, rough idling, stalling, and hesitation during acceleration. Your vehicle may also fail emissions tests.

Can I install the Hella MAF Sensor myself?

While some experienced DIYers can install it, it's often recommended to have a qualified mechanic perform the installation to ensure it's done correctly and to reset any necessary engine control unit (ECU) parameters.

What is the difference between this Hella MAF sensor and an OEM sensor?

This Hella sensor is manufactured to Original Equipment (OE) quality standards, meaning it is designed to perform and fit like the original part installed by the vehicle manufacturer.

How long does a MAF sensor typically last?

The lifespan of a MAF sensor can vary greatly depending on driving conditions and vehicle maintenance. However, they typically last for many years or tens of thousands of miles. Regular air filter replacement can help prolong its life.

What is the induction pipe connector diameter?

The induction pipe connector diameter for this sensor is 82mm, which is critical for ensuring a proper seal within the air intake system.

What does 'pipe-neck mounting type' mean?

This refers to the method by which the sensor is secured into the air intake ducting. It typically means the sensor has a flange or neck designed to fit into a specific opening and be held in place by clamps or bolts.

Troubleshooting

Check Engine Light remains on after installation.

Ensure the MAF sensor is correctly installed and the electrical connector is securely seated. Clear any existing diagnostic trouble codes (DTCs) using a scan tool. Some vehicles may require a specific relearn procedure.

Engine runs rough or stalls.

Verify the MAF sensor is the correct part for your vehicle and that no air leaks exist in the intake system post-installation. Check for proper connection of the electrical harness.

Poor fuel economy persists.

Confirm the MAF sensor is functioning correctly by checking live data with a scan tool. Other factors affecting fuel economy, such as tire pressure, driving habits, or other engine components, should also be investigated.

Hesitant acceleration or lack of power.

Ensure the MAF sensor is properly installed and that the air intake system is free of obstructions. A faulty sensor or an air leak can cause these symptoms.

Pros and Cons

Pros

  • Restores optimal engine performance and fuel efficiency.
  • High-quality materials ensure longevity and reliability.
  • Designed for a precise fit, simplifying installation.
  • Meets OE specifications for guaranteed compatibility.
  • Helps maintain proper air-fuel ratio for smoother running.

Cons

  • Requires specific Mercedes-Benz models for compatibility.
  • Professional installation is often recommended.
  • Not a universal part; vehicle-specific fitment is essential.
  • Sensor calibration may be required by a mechanic.

Setup, Compatibility & Care

Compatibility: This Hella MAF Sensor (8ET009149-421) is specifically designed for the following Mercedes-Benz models:

  • CLC-Class (CL203): 2008-2011
  • E-Class (S211): 2002-2009

Always verify your vehicle's specific fitment using the part number and OEM references (e.g., 646 094 00 48) before purchase.

Setup (Installation):

Installation of a MAF sensor is a critical task that requires precision. It is typically located in the air intake system, between the air filter box and the throttle body.

  1. Disconnect Battery: Always disconnect the negative battery terminal before beginning work.
  2. Locate Sensor: Identify the MAF sensor in the air intake duct.
  3. Disconnect Electrical Connector: Carefully release the locking tab and unplug the wiring harness.
  4. Remove Old Sensor: Unbolt or unclamp the existing MAF sensor. Note its orientation.
  5. Install New Sensor: Fit the Hella MAF sensor in the same orientation as the old one. Secure it with bolts or clamps.
  6. Reconnect Electrical Connector: Plug the wiring harness back into the new sensor until it clicks.
  7. Reconnect Battery: Reconnect the negative battery terminal.
  8. Test: Start the engine and check for proper operation. A professional scan tool may be needed to clear any related error codes or perform basic sensor relearn procedures.

Care: MAF sensors are sensitive components. Avoid spraying cleaners directly onto the sensor element. If cleaning is necessary (though not typically recommended for replacement parts), use specialized MAF sensor cleaner and follow its instructions precisely. Ensure the air filter is clean and properly seated to prevent debris from reaching the sensor.

Price History

DatePrice
Visit shop