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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Excessive smoke from exhaust after oil change



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      09-21-2013, 05:37 PM   #1
stratos_335
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Cool Excessive smoke from exhaust after oil change

Hello all,

today I changed oil to my car. As usual, 6.5lt of Motul 300V 5-30 and new oil filter. Maybe my mechanic added 0.3 lt more.

After starting up my car there was a lot of oil vapors coming out from my Synapse BOV. I've never seen so much vapors from the engine bay.

After riding my car twice (oil cooled down) there was a lot of smoke on deceleration coming out from my exhaust (individual pipes for each turbo - custom exhaust). When shifting down an pressing the gas pedal again, there was so much smoke coming out from my exhaust... it was like a forest on fire and the smell of smoke was intense.

I've been using Motul 5-30 for the last 5 oil changes with no issues. Is that cause by the extra oil added?



PS. RB turbos for the last 9000 km with no issues, car running strong and very fast.
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      09-21-2013, 08:17 PM   #2
BMWM.D.
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Are you sure the oil change was done properly? I know it's a really simple thing, but I've heard of cars getting double filled with oil. Just a thought.
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      09-22-2013, 01:37 AM   #3
stratos_335
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Yeap, I was with my mechanic all the time, he is a friend of mine. And believe me, Motul 300 V is not cheap to buy twice
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      09-22-2013, 04:12 AM   #4
RallyRcrr
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Did you ever find out what the cause was? Also, what benefit does the Motul oil provide you?
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      09-22-2013, 04:52 AM   #5
stratos_335
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70% the front turbo went to paradise

30% the engine went to paradise


Will come back later, I'm frustrated now....
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