Please help

[tasci1]

I know this is a T6 forum, but I haven’t been able to find a solution to my problem on many other Wag forums, so I need your help and advice. I have a 2014 Audi Q5 with a 2.0 TFSI engine (EA888 CNCD). As you can see in the photo I shared, the temperature is reading -48 degrees. Under normal conditions, the engine fan kicks in between 105–108 degrees and shuts off when it drops to 98 degrees, but during this time, the hoses swell significantly and the pressure increases. The lower radiator hose remains cold, and the instant reading rarely exceeds 20 degrees. However, when I press the AC button to activate the fan, the instant reading rises from 20 to 30 degrees, and the stiffness in the hoses decreases. On this vehicle, the water pump and thermostat were replaced as a single unit with a new, original set. When I disconnect the sensor plug on the lower radiator hose, the instant reading locks at -39; when I reconnect it, it continues to read the radiator outlet temperature. However, the target range set by the ECU never deviates from -48. Please share your thoughts. Additionally, during the VCDS diagnostic test, an output test was performed on the water pump; it lasted about 10 seconds and returned a "successful" result. In the engine section, I’m getting the error code "U0447: Diagnostic Gateway Module." Please, please help

Translation: I know this is a T6 forum, but I haven't been able to find a solution to my problem on many other Wag forums, so I need your help and advice. I have a 2014 Audi Q5 with a 2.0 TFSI engine (EA888 CNC). As you can see in the photo I've shared, I'm reading a temperature of -48 degrees. Under normal conditions, the engine fan kicks in between 105-108 degrees and shuts off when it drops to 98 degrees, but during this time the hoses swell significantly and the pressure increases. The lower radiator hose remains cold, and the instantaneous reading rarely rises above 20 degrees. However, when I press the climate control button to activate the fan, the instantaneous reading rises from 20 degrees to 30 degrees, and the stiffness in the hoses decreases. In this vehicle, the water pump and thermostat have been replaced as a single unit with a new, original set. When I disconnect the sensor plug in the lower radiator hose, the instantaneous reading locks at -39; when I reconnect it, it continues to read the radiator outlet temperature. However, the target range set by the ECU never deviates from -48. Please share your thoughts. Also, during the VCDS diagnostic test, an output test was performed on the water pump; it lasted about 10 seconds and resulted in a "successful" result. In the engine compartment, I'm getting the error code "U0447: Diagnostic Gateway Module". Please, please help.

 

[tasci1]

These are the readings obtained after reattaching the sensor plug to the radiator outlet hose.

 

[Bav]

Foruma hoş geldiniz. Lütfen İngilizce olarak mesaj gönderin.

 

[tasci1]

I know this is a T6 forum, but I haven’t been able to find a solution to my problem on many other Wag forums, so I need your help and advice. I have a 2014 Audi Q5 with a 2.0 TFSI engine (EA888 CNC). As you can see in the photo I shared, the temperature is reading -48 degrees. Under normal conditions, the engine fan kicks in between 105–108 degrees and shuts off when it drops to 98 degrees, but during this time, the hoses swell significantly and the pressure increases. The lower radiator hose remains cold, and the instant reading rarely exceeds 20 degrees. However, when I press the AC button to activate the fan, the instant reading rises from 20 to 30 degrees, and the stiffness in the hoses decreases. On this vehicle, the water pump and thermostat were replaced as a single unit with a new, original set. When I disconnect the sensor plug on the lower radiator hose, the instant reading locks at -39; when I reconnect it, it continues to read the radiator outlet temperature. However, the target range set by the ECU never deviates from -48. Please share your thoughts. Additionally, during the VCDS diagnostic test, an output test was performed on the water pump; it lasted about 10 seconds and returned a "successful" result. In the engine section, I’m getting the error code "U0447: Diagnostic Gateway Module." Please, please help.