M5POST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   M5POST - BMW M5 Forum > F10 M5 Forum > Engine, Exhaust, Drivetrain Modifications

Post Reply
 
Thread Tools Search this Thread
      05-06-2019, 08:12 PM   #1
induc916
Private First Class
55
Rep
181
Posts

Drives: 2014 M6
Join Date: Mar 2018
Location: Indiana

iTrader: (0)

Smoke when coming to a stop

So has anyone had issues with either PCV system or Turbos causing couple puffs of smoke when coming to a stop after a couple pulls?

See signature for mods. I don't want to jump to conclusions on if its turbo or not. I'm not burning any oil, had a black stone analysis done and no issues shown.
__________________
14 M6 Sakhir Coupe | Pure S1 | JB4 | Meth | Fabworx DP | 4mm bored throttle bodies | SSP-R | Billet Diff Mount | DSS Axles | Rkautowerks carbon charge pipes | CSF Intercoolers |Akro exhaust | Gapped Plugs | project-gamma intakes | DME Stage 3+ Custom | 749whp/789wtq
Appreciate 1
      05-07-2019, 04:19 AM   #2
Mr. M6
FEEL THE POWER
Mr. M6's Avatar
Bahrain
72
Rep
353
Posts

Drives: M6 GC
Join Date: Jan 2018
Location: Bahrain

iTrader: (0)

Garage List
2014 BMW M6 GC  [4.50]
same here, before few days i was driving the car hard with sport+ mode then after few pulls i changed mode to efficient same time my friend was behind me and he saw white smoke coming from the right muffler only, few seconds and gone....

so the time from sport+ to efficient mode the white smoke came out
__________________
M6 GC CP + AMS CATLESS DP + AKRAPOVIC EXHAUST + MSR INTAKE + BM3 HCP STAGE 2 =
Appreciate 1
      05-07-2019, 09:30 AM   #3
induc916
Private First Class
55
Rep
181
Posts

Drives: 2014 M6
Join Date: Mar 2018
Location: Indiana

iTrader: (0)

I wonder if oil weight has anything to do with it, yes I know i'm catless but this didn't start happening till i upgraded turbo, tune and ran meth.
__________________
14 M6 Sakhir Coupe | Pure S1 | JB4 | Meth | Fabworx DP | 4mm bored throttle bodies | SSP-R | Billet Diff Mount | DSS Axles | Rkautowerks carbon charge pipes | CSF Intercoolers |Akro exhaust | Gapped Plugs | project-gamma intakes | DME Stage 3+ Custom | 749whp/789wtq
Appreciate 0
      05-07-2019, 11:37 AM   #4
Jasoneo5
Second Lieutenant
29
Rep
228
Posts

Drives: M6 Gran Coupe, M3, Turbo S
Join Date: Dec 2013
Location: SF Bay area

iTrader: (1)

Same here - have been having the same occurrence for a while - but only happens periodically and not necessarily after a pull, but always been decelerating to a stop. Hoping its just unburnt fuel? Will be doing a oil analysis next month

BM3 Stage 2 + DP's
Appreciate 0
      05-07-2019, 11:58 AM   #5
Pikey Motorsports
First Lieutenant
Pikey Motorsports's Avatar
United Kingdom
93
Rep
394
Posts

Drives: M5
Join Date: Apr 2018
Location: Bristol

iTrader: (0)

I used to get this all the time when I 1st got the car

It seemed to have stopped for a long time now though
Appreciate 0
      05-09-2019, 12:51 PM   #6
jairomvp182
Lieutenant
jairomvp182's Avatar
371
Rep
521
Posts

Drives: 2013 BMW M5
Join Date: Nov 2016
Location: Grafton,MA

iTrader: (1)

thats how two m5 i know started, after pulls and sometimes just driving around oil smell coming from the exhaust, after a while then smoke, end result cylinder 8 on both cars passing oil, remember that the exhaust manifold runs on both banks so it will smoke on both sides even if its just one cylinder.
__________________
13 M5, 11.0@131 Fabworx DP,Precision Tune 650whp+
11 E92 335xi 12.5@113MPH,362whp/438wtq GONE http://www.youtube.com/c/jairomvp
FB:MassBMW Instagram:MassBMW
Appreciate 0
      05-17-2019, 06:36 AM   #7
OneExtra
Major
United Kingdom
531
Rep
1,337
Posts

Drives: F10 M5 Competition Pack
Join Date: Aug 2017
Location: England

iTrader: (0)

Quote:
Originally Posted by Pikey Motorsports View Post
I used to get this all the time when I 1st got the car

It seemed to have stopped for a long time now though
Looking at how you drive you have probably cleaned any old crud well and truly out!
Appreciate 0
      05-18-2019, 01:55 PM   #8
schnell1982
Captain
310
Rep
933
Posts

Drives: FAST
Join Date: Dec 2015
Location: Southern California

iTrader: (0)

Quote:
Originally Posted by induc916 View Post
So has anyone had issues with either PCV system or Turbos causing couple puffs of smoke when coming to a stop after a couple pulls?

See signature for mods. I don't want to jump to conclusions on if its turbo or not. I'm not burning any oil, had a black stone analysis done and no issues shown.
I have had some friends with the same experience as you.
It would mainly be on cold start and after some hard pulls
The issue was bad turbo seals
If you had contentious oil smoke; then I would be looking at the PCV system.
Appreciate 0
      05-18-2019, 04:38 PM   #9
finlandm5f10
Second Lieutenant
24
Rep
214
Posts

Drives: BMW M5 F10&Audi RS6 C7 2016
Join Date: Aug 2017
Location: Finland

iTrader: (0)

Coolant leak in to cylinders.
Appreciate 0
      05-18-2019, 07:41 PM   #10
Jasoneo5
Second Lieutenant
29
Rep
228
Posts

Drives: M6 Gran Coupe, M3, Turbo S
Join Date: Dec 2013
Location: SF Bay area

iTrader: (1)

Quote:
Originally Posted by schnell1982 View Post
I have had some friends with the same experience as you.
It would mainly be on cold start and after some hard pulls
The issue was bad turbo seals
If you had contentious oil smoke; then I would be looking at the PCV system.
Is this a critical problem that needs to be fixed ASAP, or is it ok to wait until it gets worse/more constant?

Thx
Appreciate 0
      05-19-2019, 03:14 PM   #11
Dng93
Enlisted Member
0
Rep
31
Posts

Drives: F13 m6
Join Date: Jun 2016
Location: Sgv

iTrader: (1)

Quote:
Originally Posted by Mr. M6 View Post
same here, before few days i was driving the car hard with sport+ mode then after few pulls i changed mode to efficient same time my friend was behind me and he saw white smoke coming from the right muffler only, few seconds and gone....

so the time from sport+ to efficient mode the white smoke came out
Same thing happened to me also at a red light , big white cloud of smoke when I was switching from sport + to efficient mode. Hasn't happened since been pushing the car really hard after with no problems
Appreciate 0
      05-20-2019, 05:28 PM   #12
schnell1982
Captain
310
Rep
933
Posts

Drives: FAST
Join Date: Dec 2015
Location: Southern California

iTrader: (0)

Quote:
Originally Posted by Jasoneo5 View Post
Is this a critical problem that needs to be fixed ASAP, or is it ok to wait until it gets worse/more constant?

Thx
Any potential issue I would advise to get diagnosed before your issue gets worse. At this point, all we have is speculation
Appreciate 0
      06-01-2019, 05:02 AM   #13
theinfamousdrew
I'm The Captain Now
theinfamousdrew's Avatar
285
Rep
1,571
Posts

Drives: F10 M5
Join Date: Sep 2010
Location: Charlotte

iTrader: (12)

Garage List
Subscribed.

This happened for the first time yesterday. The car is catless and tuned.

Driving normally light traffic, came to a red light and a big cloud of whitish smoke followed me.
I pulled over and the smoke had started to subside and after a couple mins was gone. Continued to my destination and when I restarted the car it was fine.
Nothing on the drive home.

Scared the crap out of me since I just bought this thing. lol
It is still under CPO warranty but I dont have stock cats to throw on to bring it in.

Current mods:
Tune
RK intakes
Catless downpipes
Axle back exhaust
__________________


Turn on. Tune in. Drop out.
IG: @Atomic.M5


Last edited by theinfamousdrew; 06-06-2019 at 12:35 PM..
Appreciate 0
      06-04-2019, 07:19 PM   #14
jairomvp182
Lieutenant
jairomvp182's Avatar
371
Rep
521
Posts

Drives: 2013 BMW M5
Join Date: Nov 2016
Location: Grafton,MA

iTrader: (1)

update, both cars i know having the same issue end up having oil on top of the piston.
__________________
13 M5, 11.0@131 Fabworx DP,Precision Tune 650whp+
11 E92 335xi 12.5@113MPH,362whp/438wtq GONE http://www.youtube.com/c/jairomvp
FB:MassBMW Instagram:MassBMW
Appreciate 0
      06-04-2019, 09:18 PM   #15
Jasoneo5
Second Lieutenant
29
Rep
228
Posts

Drives: M6 Gran Coupe, M3, Turbo S
Join Date: Dec 2013
Location: SF Bay area

iTrader: (1)

Quote:
Originally Posted by jairomvp182 View Post
update, both cars i know having the same issue end up having oil on top of the piston.
Nice to know. Is this serious & what would cause it?
Appreciate 0
      06-04-2019, 09:36 PM   #16
jairomvp182
Lieutenant
jairomvp182's Avatar
371
Rep
521
Posts

Drives: 2013 BMW M5
Join Date: Nov 2016
Location: Grafton,MA

iTrader: (1)

Quote:
Originally Posted by Jasoneo5 View Post
Quote:
Originally Posted by jairomvp182 View Post
update, both cars i know having the same issue end up having oil on top of the piston.
Nice to know. Is this serious & what would cause it?
Well it looks like heat could be a big issue, 2 out of 4 cars were cylinder 8, one cylinder 6 and one on 5 if I'm not mistaken, ether piston cracked or ringland gave up and this case, they are all close friends of mine, I heard it's about 40 hours to change a piston on this cars.
__________________
13 M5, 11.0@131 Fabworx DP,Precision Tune 650whp+
11 E92 335xi 12.5@113MPH,362whp/438wtq GONE http://www.youtube.com/c/jairomvp
FB:MassBMW Instagram:MassBMW
Appreciate 0
      06-04-2019, 10:22 PM   #17
boots
Curve Thrasher
boots's Avatar
519
Rep
3,726
Posts

Drives: 2013 Bmw m5..White/Blk.
Join Date: Nov 2012
Location: Cypress Tx

iTrader: (0)

put 10 onces of sea fog into your oil and put some miles on it. it will go away. mine did as well as one of my friends.
__________________
2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers

Country run
Appreciate 0
      06-05-2019, 04:26 AM   #18
theinfamousdrew
I'm The Captain Now
theinfamousdrew's Avatar
285
Rep
1,571
Posts

Drives: F10 M5
Join Date: Sep 2010
Location: Charlotte

iTrader: (12)

Garage List
Quote:
Originally Posted by boots View Post
put 10 onces of sea fog into your oil and put some miles on it. it will go away. mine did as well as one of my friends.
Seriously?

This happened again to me yesterday and its starting to worry me.
Yesterday it was a smaller instance than the other day.

I may reinstall stock intakes, downpipes, and flash it back to stock and take it to the dealer. I still have a warranty through Sept.
__________________


Turn on. Tune in. Drop out.
IG: @Atomic.M5

Appreciate 0
      06-05-2019, 07:59 AM   #19
boots
Curve Thrasher
boots's Avatar
519
Rep
3,726
Posts

Drives: 2013 Bmw m5..White/Blk.
Join Date: Nov 2012
Location: Cypress Tx

iTrader: (0)

yes. pick up a bottle from o'Reilly's. My bud and I here have no more smoke.

dont worry about the smoke. this will clean out your motor. no need to remove your items
__________________
2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers

Country run
Appreciate 1
      06-05-2019, 12:47 PM   #20
Jasoneo5
Second Lieutenant
29
Rep
228
Posts

Drives: M6 Gran Coupe, M3, Turbo S
Join Date: Dec 2013
Location: SF Bay area

iTrader: (1)

Quote:
Originally Posted by boots View Post
yes. pick up a bottle from o'Reilly's. My bud and I here have no more smoke.

dont worry about the smoke. this will clean out your motor. no need to remove your items
Thank you
Appreciate 0
      06-05-2019, 07:17 PM   #21
boots
Curve Thrasher
boots's Avatar
519
Rep
3,726
Posts

Drives: 2013 Bmw m5..White/Blk.
Join Date: Nov 2012
Location: Cypress Tx

iTrader: (0)

your welcome.

I added mine then drove couple hundred miles. changed oil and no more smoke. it will work for you
__________________
2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers

Country run
Appreciate 1
      06-06-2019, 07:23 AM   #22
theinfamousdrew
I'm The Captain Now
theinfamousdrew's Avatar
285
Rep
1,571
Posts

Drives: F10 M5
Join Date: Sep 2010
Location: Charlotte

iTrader: (12)

Garage List
Yesterday I did some investigating and pulled my intakes off.
There was a substantial pool of oil in the plastics piece just before the turbo.
It seems that under hard cornering this would easily spill over into the turbo causing smoke.

I cleared it out and will monitor it some more.
Attached Images
 
__________________


Turn on. Tune in. Drop out.
IG: @Atomic.M5

Appreciate 1
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:58 PM.




m5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST