Mercedes MAF Sensor C-Class E-Class CLK SLK - 2710940248 5WK9638

Upgrade your Mercedes’ engine performance and efficiency with this Mass Air Flow Meter Sensor, compatible with Mercedes C-Class (CL203 / S203), CLK (A209 / C209), E-Class (W211 / S211), and SLK (R171) models. Designed to match or exceed OEM specifications, this sensor provides accurate airflow data to your ECU, helping optimize fuel mixture, improve throttle response, and reduce emissions under various driving conditions.

OEM Number: A2710940248, 2710940248, 8ET0091423518ET009142-3512137197150197516120

Operating Mode : Electric

Voltage : 12 V

Number of Connector : 5 Pin Connector

Suction Pipe Connector Diameter : 80 mm

Connector Shape : 1

Our SKU: TM5WK9638_94

All our Mass Air Flow Meter Sensor For Mercedes C-Class Cl203, S203, Clk A209, C209, E-Class S211, W211, Slk R171 5WK9638 are OEM quality and reliable after market car parts. This Mass Air Flow Meter Sensor For Mercedes C-Class Cl203, S203, Clk A209, C209, E-Class S211, W211, Slk R171 5WK9638 is specifically compatible with Mercedes-Benz: C-Class, CLC-Class, CLK, E-Class, SLK, Sprinter 3-T, Sprinter 3.5-T, Sprinter 5-T, .

Please use our make-model-year tool to check this part's compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.

If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

❓ Frequently Asked Questions (FAQs)

Q1: Which Mercedes models are supported by this MAF sensor?
A: It’s designed to fit C-Class (CL203, S203), CLK (A209, C209), E-Class (W211, S211) and SLK (R171) chassis. Be sure to verify that your engine and year align with compatibility.

Q2: Is this sensor an OEM or aftermarket replacement?
A: This is an aftermarket / OEM-quality replacement created to deliver performance and accuracy on par with the original part.

Q3: What connector type and voltage does this sensor use?
A: It typically uses a 4‑ or 5‑pin connector and operates at the standard automotive 12V system voltage.

Q4: What performance gains can I expect after installing this sensor?
A: Expect more stable idling, improved throttle response, more accurate air‑fuel ratios, lower emissions, and potential fuel economy gains since your ECU receives precise airflow data.

Q5: What should I do if the sensor doesn’t fit or match my vehicle?
A: Compare your existing sensor’s part number with the one in the listing. You can also provide your VIN to support. contact us.

Q6: Does this product come with a warranty or guarantee?
A: All products are protected by upto to 10 year worry-free warranty. Read our Warranty Policy. We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. Read our Return Policy 

Q7: Can I install this sensor myself? Are there special instructions?
A: Installation is typically straightforward - unplug old sensor, mount the new one in the airflow housing, connect the plug, then clear error codes with an OBD tool. Always ensure intake hose seals are tight and no air leaks exist.