N47 177hp turbo acctuator help !

[Mindaugas]

Hello i have a power loss on my e92 n47 177hp 2010 . It might be the turbo acctuator?

 

 

[Destroyer-Dan]

On 4/2/2022 at 2:28 PM, Mindaugas said:

Hello i have a power loss on my e92 n47 177hp 2010 . It might be the turbo acctuator?

 

Hi Mindaugas welcome to the group... that movement in the actuator arm is normal the brace that connects the actuator to the turbo has a bearing in the middle to allow it to move and wobble like that... you may find that when you hear the car making that buzzing noise you won't be able to move the actuator arm up or down by hand as the car is going through a process before it completely shuts down all the electronic sensors....if you unplug the turbo actuator and then move the actuator up and down by hand it should move up and down freely if you find that you can't move it by hand and the actuator is stiff after the electrical connector has been unplugged it will more than likely indicate a build up of carbon on the turbo vains this can be resolved by disassembling and cleaning the exhaust side of the turbo or you can do a quick temporary fix by disconnecting the actuator arm from the turbo and manipulate the movement of the actuator until the arm for the turbo vains become free to move again but be careful doing this as you can damage the turbo vains i will post a YouTube link to show you a quick temporary fix 

 

[Greydog]

Does that mean it's fixed Dan ?

[Destroyer-Dan]

3 hours ago, Greydog said:

Does that mean it's fixed Dan ?

Its more of a fault elimination process

The video I have attached will be a good test to do a trial an error if the boost actuator is stuck due to carbon build up on the vains the turbo will not boost properly as boost pressure is controlled by the turbos actuator and that pressure is read by the MAP sensor/boost pressure sensor ...if the temporary solution works and the car operates properly then id recommend removing the turbo and dissasembling the exhaust side of the turbo and clean the turbo vains.

if the vains operate normally when the actuator is unplugged then Id suggest looking for boost leaks and using ISTA or INPA to read live data and go from there

[Greydog]

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