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Hi guys,

I have a 2013 F30 320i which I had software installed about 2 years ago. The mileage is 80000. Recently I noticed when I floor the car there is a big puff of black smoke.
Should i be concerned as my Motorplan ends in December as was planning on keeping the car out of Motorplan.

Please advise?

Many thanks
Fred
Black smoke.. from a petrol.. Over fueling? What software are you running...
Was tuned by the late OB from Chiplogic.
How aggressive is the tune? Any other mods? Is the black smoke coming from the back of the exhaust or up front (and appearing to come out the back)?

I don't want to freak you out but in my experience your worst case might be worn piston rings (specifically because you stated it was under acceleration). These turbo cars are great for tunes but the tunes are harsh on the internals, specifically around the time/mileage frame you mentioned.

Good luck... hopefully it's something minor/simple to fix.
The tune was to get it to 328 power so from 135kw to 180kw.
Was fairly aggressive.
Sounds hectic.
Flash it to stock & dealer it.
(10-01-2017 09:44 PM)Twinz@TheFanatics Wrote: [ -> ]Sounds hectic.
Flash it to stock & dealer it.

+1

Showing up with the tune might cause you a lot of heartburn.
(10-01-2017 07:39 PM)cOlDFuSiOn Wrote: [ -> ]Black smoke.. from a petrol.. Over fueling?

Definitely over fuelling.
If it where a bluish white smoke it was oil burning
Check the boost pressure. ..airflow and oxygen censors etc
Basically you're air feul mixture is all wrong
A puff of black smoke is normally over fueling. Why your vehicle is suddenly running rich is a concern. I would start with the sensors.

Just my 2 cents...
Flash to stock and take to dealer
Has the consumption changed at all? How far away from the next service is it? How long since it was last serviced?
(11-01-2017 02:44 PM)sash Wrote: [ -> ]Has the consumption changed at all? How far away from the next service is it? How long since it was last serviced?

Consumption been 8 in traffic driving & long distance 6.8.
So I can not notice a significant difference in consumption.
Car had a service about 5000 km ago.
That's sounds normal.

Maybe try flashing it to standard & see if the smoking stops.
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