isabellasilber93
Mercedes E Klasse diesel engine issue resolved
Summary of the thread
A 2000 Mercedes E Klasse diesel was experiencing engine trouble, with the check engine light on and reduced engine power. Diagnostics indicated an intake air temperature sensor error, causing rough engine performance. The problem was resolved by replacing the intake air temperature sensor, which restored normal engine function.
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4 comment(s)
isabellasilber93 (community.author)
I appreciate the input. Is there a specific way to test the wiring connections, or am I just looking for anything obviously broken or disconnected? I want to be sure before replacing the sensor.
alfred_schneider1
When mine went bad on the Opel, I checked the wires for breaks, but that didn't help. I took it to a workshop for diagnostics. They confirmed the sensor and replaced it. It might be worth getting a professional diagnosis before replacing parts based on the error code. Replacing it fixed mine, but it was a gamble.
isabellasilber93 (community.author)
I had the intake air temperature sensor replaced, and that seems to have resolved the issue. The repair cost 155€, so I'm happy with the outcome. Thanks again for the guidance.
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MERCEDES
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EKLASSE
alfred_schneider1
That sounds familiar. I had a similar experience with my old Opel. My issue was with the mass airflow sensor, I think, but the symptoms were close: check engine light and sluggish performance. Have you checked the wiring and connections to the intake air temperature sensor? Sometimes it's just a loose connection or damaged wire.