technical F30 335i boost leak and maf sensor

Wayno@135

///Member
Good day all,

Have a 335i however it has a drivetrain warning. When plugged in at a service centre to read the codes, saw there was a maf sensor issue as well as a boost leak. I have cleaned the maf sensor and tried the unplug it test but no difference and drive train error still comes back, I'm assuming it's because of the boost leak and/or I need a new maf sensor. Is there any recommendations for someone who can assist with testing and fixing the boost leak in the gauteng region?
 

khumalbs

New member
Good day all,

Have a 335i however it has a drivetrain warning. When plugged in at a service centre to read the codes, saw there was a maf sensor issue as well as a boost leak. I have cleaned the maf sensor and tried the unplug it test but no difference and drive train error still comes back, I'm assuming it's because of the boost leak and/or I need a new maf sensor. Is there any recommendations for someone who can assist with testing and fixing the boost leak in the gauteng region?
Run a boost pressure test (smoke test) on the car. On my F30 335i - my pressure leak was coming from a damaged crank shaft seal leak.
 
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