Question about 2006 BMW M3

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Bmw m3 2003 cylinder 5 misfiring plus lots of smoke coming out of exhaust if i go aboce 3000 revs replaced coils and spark plugs but later car smoking again dont understand

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YOU HAVE PROBLEMS WITH SUCTION HOSE ON TOP TO MOTOR THAT CAUSE MISFIRING ON ALL CILINDERS AND TRY REPLACE CRANKVENT VALVE THAT HELP STOP SMOK

Posted on Aug 16, 2012

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Posted on Jan 02, 2017

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Mikey108
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SOURCE: thick white smoke coming from exhaust

If it looks like a James Bond movie, you have a blown headgasket

Posted on Oct 08, 2008

  • 18 Answers

SOURCE: 2001 BMW 325I , consuming oil , blue smoke from

Might have blown head gasket

Posted on Sep 11, 2009

Testimonial: "good posibility"

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SOURCE: my bmw x5 3d relising so much smoke from exust

Just had my car in the garage with horrendous white smoke coming from the exhaust. The problem with mine was a blocked crankcase breather. When blocked oil is passed into the exhaust system apparently.
Problem solved by the mechanic and half a day in the garage with the engine running to burn off the excess oil in the exhaust and the problem was solved. Had gentle ride out to the coast yesterday approx 1.5 hrs each way and the smoke has gone.
Good result for £160.00. I dread to think what the dealer would have charged.

Posted on Sep 21, 2009

  • 468 Answers

SOURCE: 1.9 dci no power and bluey grey smoke is coming from the exhaust

There are indeed traces of oil coming out of the exhaust. Blue smoke is burning oil. Grey or white smoke is usually coolant/water going through the engine. This can be caused by leaking head gaskets, valve guides depending on the engine, excessive blow-by, etc. Large amounts of oil are not good; and water is even worse. I would look at getting the head gasket replaced. The loss of power is because neither oil or water likes to burn, and once your engine clears it out, it probably runs ok for the rest of the day. Then I'm guessing the next morning, it comes back. This is an urgent fix, because prolonged leakage can damage the engine block, head, or both.

Posted on Oct 19, 2009

Testimonial: "thanks for the advice i will get it looked at asap"

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2 Answers

Car sputtering badly. Codes P303 n P102 show on diagnostics and have replaced both parts associated with these codes,PLUS, new fuel filter, engine still sputtering badly.


Hi,

I hope I can help with this. This could mean the engine spark plugs or plug is the issue. Also check the exhaust pipe. White smoke indicates a coolant issue. Check your coolant reservoir. Black smoke indicates a Fuel issue. Blue is an oil issue. Also, speaking of your spark plugs there very well could be a misfire.

the code P303 could be cylinder 3 misfire
P102 the mass air flow sensor which is on the air filter cover. It's an electrical part and is sensor. Please check these and let me know.

Jul 28, 2016 | Cars & Trucks

1 Answer

1998 bmw 540i having a misfire on cylinder 5 changed the plugs and coil packs. It ran fine for a couple days, then it began again, giving me a check engine, and it's idling rough at low rpms.


Is the same cylinder causing the problem? If so take a close look at the spark plug for fuel fouling. The cylinder may be over fueled causing plug fouling. You may also have a bad coil or defective spark plug. Try swapping coil and plug with one from adjacent cylinder to see if misfire changes to that cylinder

Apr 06, 2015 | BMW Cars & Trucks

1 Answer

Why does my Bmw 320i goes 100% but when stoping at a stop light for about 15 seconds the car revs start to change and when i pull off it fells like the car is riding on 3 cylinders, i then stop turn the...


Replace spark plugs and look at coils. Sounds like a misfire at idle. Car is trying to keep idle high enough with 1 or 2 cylinders misfiring. Car compensates then revs up as the cylinders catch and run again. These cars often have bad coils. Scan car and look for codes 301 through 306. Replace all plugs and if misfire comes back then replace the coils on the cylinders that occasionally misfire. Look at boots and spring wires on coils and replace coils that have bad boots.

Mar 16, 2015 | 2000 BMW 3 Series

1 Answer

Misfired cylinder 6, replaced coil, plug Misfired cylinder 5, replaced coil, plug Misfired unsure which yet, all of these happening within a week. It will run fine for a day or so after rep


change all plugs with proper ones - they are picky for some reason - do not change number or brand from original - coils were probably ok, - get some injector cleaner and run through it but check for exhaust leak at e g r tube - is a common over looked cause of misfire - a thing to keep in mind is misfire isn't always spark issue. hope I was of some help

Apr 20, 2014 | 2003 Lincoln Town Car

1 Answer

Causes cylinder misfire


Most common cause is an old spark plug that burnt out the coil. Spark plugs should be replaced every 100,000 miles. If the plugs are old replace the spark plugs and swap the coil with cylinder 6. If the code jumps to cylinder 6 you know you have a bad coil.

Apr 03, 2014 | 2002 BMW X5

1 Answer

Catalytic converter has plugged up twice in 3000 miles


Catalytic convertor fails due to oil burning, recent head gasket, improper fuel control,but plugging up at 3000 mile misfire surely plug it up when the vehicle is dumping gas in the catalytic, lean misfire ,running very rich due to a coolant temperature.Who is putting this on?I dont know what state you are from,a catalytic should not be installed unless the vehicle is in proper fuel control.and whoever installed this should foot the bill. You need to claim warranty regardless and plus there is a EO# that must match the vehicle.

Mar 17, 2012 | Cars & Trucks

1 Answer

I've a problem with misfiring in # 5 cylinder -combustion failure


1. Swap two ignition coils between #5 cylinder and another one.
2. If the #5 cylinder misfire problem is still present you must check up wire by wire the electrical supply cable from the Engine Control Module (ECM) to the #5 ignition coil. Repair damaged wire(s). The last piece out of order will be the ECM !
3. Inspect also #5 spark plug if it is wet or dry. If it is dry then you must verify the #5 injector!

Mar 18, 2010 | 2003 BMW 330

2 Answers

99 5.2 durango :pulled codes for multipe missfire cylinder #5-7


Aloha We have just replaced all of what you have replaced, plus water pump, fuel pump, pcv valve and 02 sensor. Took it to mechanic today we had misfire on 1,2,6,7. Mechanic said that the 99 dodge is known for bad computers, he checked ours and works great turns out that it was the coil. Ours was jumping 1/4 inch and had a orange/yellow spark. it is supposed to have a 1 inch spark and be blue. This has solved our problems after 527 dollars later.
Check the coil!

Feb 26, 2009 | 1999 Dodge Durango

2 Answers

96 bmw 740il misfire


This is a pretty common problem. I would change your valve cover gaskets. They run around ~ 50 bucks. If they are bad it will leak oil into spark plug well and cause a misfire. Very known on the 740.. Also if tune was not anytime not too long ago id change spark plugs while you at it. Then clear the computer and if you still get misfire on 8 try changing the ignition coil which is right about the cylinder with cylinder ignition coil 5. clear the computer. if you get random misfire and misfire cyclinder 5 after then its your ignition coil. parts store runs around 100 bucks

Dec 22, 2008 | 2005 Hyundai Santa Fe

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