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josephschwarz95

Charge Air Temperature Sensor Error

My 2018 Mini Countryman Hybrid is throwing a charge air temperature sensor error. I'm seeing a check engine light, reduced engine power, and a distinct whistling noise alongside a loud hissing when accelerating. Error memory is storing the sensor fault. Initial diagnostics point to a defective cable or plug connection. Anyone else encountered this? Cost is estimated at 95€.

4 comment(s)

martinkoenig24

I had something similar on my Countryman, though mine's not a hybrid. Check engine light and reduced power sound familiar. Did you check the airflow sensor? That was my initial thought. What's the deal with the whistling and hissing though? Seems odd. Air temperature fluctuations can mess with the readings for sure.

martinkoenig24

I had something similar on my Countryman, though mine's not a hybrid. Check engine light and reduced power sound familiar. Did you check the airflow sensor? That was my initial thought. What's the deal with the whistling and hissing though? Seems odd. Air temperature fluctuations can mess with the readings for sure.

martinkoenig24

I had something similar on my Countryman, though mine's not a hybrid. Check engine light and reduced power sound familiar. Did you check the airflow sensor? That was my initial thought. What's the deal with the whistling and hissing though? Seems odd. Air temperature fluctuations can mess with the readings for sure.

martinkoenig24

I had something similar on my Countryman, though mine's not a hybrid. Check engine light and reduced power sound familiar. Did you check the airflow sensor? That was my initial thought. What's the deal with the whistling and hissing though? Seems odd. Air temperature fluctuations can mess with the readings for sure.

martinkoenig24

I had something similar on my Countryman, though mine's not a hybrid. Check engine light and reduced power sound familiar. Did you check the airflow sensor? That was my initial thought. What's the deal with the whistling and hissing though? Seems odd. Air temperature fluctuations can mess with the readings for sure.

josephschwarz95 (Author)

Whistling only happens under acceleration. Where was your airflow sensor located and did you also have a stored charge sensor error in the system?

josephschwarz95 (Author)

Whistling only happens under acceleration. Where was your airflow sensor located and did you also have a stored charge sensor error in the system?

josephschwarz95 (Author)

Whistling only happens under acceleration. Where was your airflow sensor located and did you also have a stored charge sensor error in the system?

josephschwarz95 (Author)

Whistling only happens under acceleration. Where was your airflow sensor located and did you also have a stored charge sensor error in the system?

josephschwarz95 (Author)

Whistling only happens under acceleration. Where was your airflow sensor located and did you also have a stored charge sensor error in the system?

martinkoenig24

Okay, the whistling and hissing might point to a leak somewhere in the intake. I didn't have those noises specifically. The airflow sensor is near the air filter box, easy to spot. Yes, I also had the charge sensor error stored. If you're getting those noises, the leak might be affecting the sensor reading. Honestly, with those symptoms, I would just take it to a workshop.

martinkoenig24

Okay, the whistling and hissing might point to a leak somewhere in the intake. I didn't have those noises specifically. The airflow sensor is near the air filter box, easy to spot. Yes, I also had the charge sensor error stored. If you're getting those noises, the leak might be affecting the sensor reading. Honestly, with those symptoms, I would just take it to a workshop.

martinkoenig24

Okay, the whistling and hissing might point to a leak somewhere in the intake. I didn't have those noises specifically. The airflow sensor is near the air filter box, easy to spot. Yes, I also had the charge sensor error stored. If you're getting those noises, the leak might be affecting the sensor reading. Honestly, with those symptoms, I would just take it to a workshop.

martinkoenig24

Okay, the whistling and hissing might point to a leak somewhere in the intake. I didn't have those noises specifically. The airflow sensor is near the air filter box, easy to spot. Yes, I also had the charge sensor error stored. If you're getting those noises, the leak might be affecting the sensor reading. Honestly, with those symptoms, I would just take it to a workshop.

martinkoenig24

Okay, the whistling and hissing might point to a leak somewhere in the intake. I didn't have those noises specifically. The airflow sensor is near the air filter box, easy to spot. Yes, I also had the charge sensor error stored. If you're getting those noises, the leak might be affecting the sensor reading. Honestly, with those symptoms, I would just take it to a workshop.

josephschwarz95 (Author)

Confirmed: faulty cable/plug connection on the charge air temperature sensor. Replaced it, cleared the error memory. All good. Thanks for the insights.

josephschwarz95 (Author)

Confirmed: faulty cable/plug connection on the charge air temperature sensor. Replaced it, cleared the error memory. All good. Thanks for the insights.

josephschwarz95 (Author)

Confirmed: faulty cable/plug connection on the charge air temperature sensor. Replaced it, cleared the error memory. All good. Thanks for the insights.

josephschwarz95 (Author)

Confirmed: faulty cable/plug connection on the charge air temperature sensor. Replaced it, cleared the error memory. All good. Thanks for the insights.

josephschwarz95 (Author)

Confirmed: faulty cable/plug connection on the charge air temperature sensor. Replaced it, cleared the error memory. All good. Thanks for the insights.

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