CLK Charge Air Temperature Sensor Issue

A charge air temperature sensor issue Interesting I own a CLK and experienced similar symptoms Reduced power and a whistling sound can point to that sensor Before tearing things apart, inspect the entire intake system for leaks A loose hose clamp or a crack in the intake manifold can mimic a faulty sensor The hissing could be escaping air, affecting airflow sensor readings Have you checked for physical damage or disconnections in the air intake system

Thanks I'll give the intake system a good look When you had the problem, did the error code specifically point to the charge air temperature sensor, or was it something more generic Did you also have the loud hissing sound I want to be sure before swapping out the charge sensor or airflow sensor

Yes, the error code explicitly indicated a fault with the charge air temperature sensor, but do not take that at face value The hissing sound was the most telling symptom The faulty sensor was indeed the ultimate culprit, however, a professional diagnosis is warranted Given the potential for misdiagnosis and the intricacies of modern engine management systems, consider consulting with a qualified technician They possess the tools and expertise to accurately pinpoint the source of the problem, and potentially save you from unnecessary expense and frustration At the very least, a smoke test of the intake system is a good starting point That will identify any leaks

You were right, the hissing sound was the key It was a cracked hose I replaced it and the error's gone, power's back Cost me 95€ for the part Thanks for the advice