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      06-30-2016, 03:33 PM   #7
mattpdx
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Drives: 2018 440i
Join Date: Apr 2011
Location: Portland Oregon

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Quote:
Originally Posted by racermp View Post
It's a turbo engine, all 2011 and up. They all have a valve stock. Does it sound more when you floor it. Wondering if it's leaking

Hows the power?
Power is fine. The sound seems to appear as the trans shifts from gear to gear. As it gets into higher RPMs, the sound dies down.

I have received the low power mode/limp mode error a few times but that goes away after restart. Seems to be a problem with others on this forum with no definite fix.

What's a "valve stock"?
Appreciate 0