BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > 2012 BMW 1-Series Sporthatch (F20) Discussion > Knocking problems in N13B16 F20 LCI
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      02-19-2018, 05:19 PM   #1
pedelgax
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Knocking problems in N13B16 F20 LCI

Hello all
This is my first BMW, in the past, I only had VAG cars
I bought this car with 8000km. Looking for more hp, I bought the JB+ one month ago. For the moment, it works fine, but, the first concern, is that I hear some knock under hard acceleration, always between 2500rpm and 3000rpm. The car feels better, but I do not like to hear this knocking in the engine. The knocking is not always, but when it happen, I see a black smoke
In order to discar problems, I remove the JB+, but the car continue with knocking, not as frecuently as with JB+ installed.
Has some one experimented the engine knocking issue in this engine?
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      02-28-2018, 11:30 AM   #2
tachra
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Hello

What Fuel Type are you using?
What Octane Number Actually? 91?95?98?
Do you use any Octane Boosters?
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      03-22-2018, 09:27 PM   #3
pedelgax
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Hello, I use 95 octane
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