Question about BMW 650

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I have a 2007 650i and sometimes when i turn the car on i notice a little blue smoke coming out of the exhaust

Car runs well but this I know will be an issue and my car has less than 90k miles

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Oil separator on side of engine, about $65 plus hoses and labor.

Posted on Nov 23, 2013

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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rylee_smith
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SOURCE: white smoke from the exhaust when I start the car

Hi!

What type of smoke can you see---

white smoke-
If you see a wispy, lingering white smoke that has a bittersweet smell, this is an indication that your car's engine coolant is leaking into the combustion chambers. This may be due to a leaky head gasket, or in a worst case scenario, a cracked cylinder head.

Make sure to take your car to the shop right away to get it fixed.
Thick white smoke---
If your vehicle is belching white smoke upon start-up, it is a sign that transmission fluid is entering the combustion chambers, possibly though a vacuum tube that connects the engine to the transmission.
This type of smoke can be confused with the normal puff of steam during start-up. If you are not sure, have your car inspected at the shop.

Blue/White Smoke--
A blue/white smoke is an indication that oil is being sucked into the combustion chambers through the valve guides. A quick fix for this problem is by replacing the valve seals. Valve seals are small, umbrella shaped pieces of rubber.

Do rate the solution.

Thanks
Rylee.

Posted on Feb 09, 2009

mrgreenz
  • 962 Answers

SOURCE: Shaking while Idling and Smelly Exhaust

It seems you may have a catalytic converter problem. Either the converter itself or one or more sensors. Take the car for a trouble code at an AutoZone or similar store for a free scan.

Posted on Apr 15, 2009

  • 6982 Answers

SOURCE: 2002 nissan altima + black smoke coming out of tailpipe.

To begin with, check for fuel in engine oil and do a compression test. If fuel system is not functioning properly (running rich) that will point you in one direction (temp sender, pressure regulator , map or airflow sensor etc) If compression is low, you may have internal engine problem (burned piston, broken ring, or combination of fuel problem causing gas washed cylinders)

Posted on Jul 28, 2009

  • 68 Answers

SOURCE: bmw 320d engine smoking

YOU MAY HAVE BLOCKED OIL RETURN HOLES,REMOVE VALVE COVER AND CH# THE 2 F/R

Posted on Aug 20, 2009

kapishtech
  • 2272 Answers

SOURCE: White smoke coming out of the exhaust when starting the engine?

Its the problem of oil.The oil is getting burned out. The vehicle is either burning oil or it is moisture in the gas chamber if you notice white smoke from the exhaust. This is a common possibility.but in some cases this white smoke is not due to oil burning.In that case   White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Normally this is a sign of a blown head gasket or cracked head. And  this is not a common problem must be repaired immediately. You must STOP driving this vehicle or you will cause serious engine damage. you will have to get both this possibilities checked.
Thanks. you can rate this solution and show your appreciation.


Posted on May 20, 2010

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Helllo there
Symptom: Gray or blue smoke from the exhaust. You notice gray smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. The smoke may have a bluish tint to it. Possible causes:

  1. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  2. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)
  3. Damaged or worn valve guides.
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Symptom: Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn't have the same power as it used to.
Possible causes:

  1. The PCV system is not working properly.
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  2. The engine may have mechanical problems.
    The Fix: Check compression to determine engine condition.
  3. The engine's piston rings may be worn.
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  4. The engine's valve seals may be worn.
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White smoke coming out of the exhaust when starting the engine?


Its the problem of oil.The oil is getting burned out. The vehicle is either burning oil or it is moisture in the gas chamber if you notice white smoke from the exhaust. This is a common possibility.but in some cases this white smoke is not due to oil burning.In that case   White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Normally this is a sign of a blown head gasket or cracked head. And  this is not a common problem must be repaired immediately. You must STOP driving this vehicle or you will cause serious engine damage. you will have to get both this possibilities checked.
Thanks. you can rate this solution and show your appreciation.


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YOU MAY HAVE BLOCKED OIL RETURN HOLES,REMOVE VALVE COVER AND CH# THE 2 F/R

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