dominikmeyer1
Check engine light and hissing sound during acceleration
Summary of the thread
A 2023 Mini Cooper exhibited a check engine light, reduced engine power, and a hissing sound during acceleration. The error memory indicated a charge air temperature sensor fault, possibly due to a defective cable or plug. The suggested solution was to inspect the sensor and its wiring for damage or loose connections. The workshop confirmed the issue was a faulty sensor cable, which was repaired.
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4 comment(s)
dominikmeyer1 (community.author)
When you say 'similar issue', was it exactly the charge air temperature sensor, or something else related to the air sensor? Where exactly is that temperature gauge located?
liliankoenig4
Yes, the error pointed directly to the charge sensor. The hissing sound does reinforce that. The sensor is located on the intake manifold, part of the air intake. It is best to go to the workshop. They can test the sensor with suitable diagnostic tools.
dominikmeyer1 (community.author)
Thank you for your assistance. The workshop confirmed the charge air temperature sensor cable was faulty. The repair cost 95€.
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MINI
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COOPER
liliankoenig4
I encountered a similar issue with my Mini Cooper. The symptoms align with what I experienced. I would suggest inspecting the charge air temperature sensor itself and its wiring harness for any visible damage or loose connections. Specifically, examine the plug connection for corrosion or bent pins. The sensor is part of the air intake system, so a faulty automotive sensor there can impact engine performance.