Question about BMW X5

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My 2003 BMW X5 3.0i is stalling out, engine runs erratically, lots of smell and smoke from underneath the back of the vehicle. Is this a bad Transfer case?

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  • BMW Master
  • 1,108 Answers

Computer is in constant cold start mode, dumping too much fuel into the engine, because of a faulty temperature sending unit. Has nothing to do with the transfer case for AWD. Replace the temperature sending unit and all will be well. All computer can do is what it's told, and it's being told the engine is not warm yet and keeping it in cold start mode.

Posted on Nov 30, 2014

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Posted on Jan 02, 2017

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SOURCE: engine idle incorrect nearly stalls runs on 3 cyl on low rpm

Best way is to get the fault codes read using a £15 interface cable and VAG-com software (£free) on a laptop computer. It will save you money. In the meantime, have you removed and examined the spark plugs?
Hope this helps you a bit. If it does, a "Fixya" rating would be much appreciated. If it doesn't
help you, I'd be grateful if you didn't bother with a rating at present - they can't be increased later if I do manage to solve your problem! Just come back and tell me what you found. Cheers, D

Posted on Dec 03, 2008

  • 1 Answer

SOURCE: Bad smell coming from heater/ smoke coming out vents

I had the same problem in my 98 Dodge Dakota! Replaced the heater core, problem solved. No more funky coolant smell and erie fog coming through my vents. I bought the heater core at rockauto.com online. Have purchased many items now from them. All factory parts so far at half the price of even AutoZone, even with the shipping. Also, you usually have to wait only a couple of days depending on the part and they have EVERYTHING.

Posted on Dec 25, 2008

Viriiguy
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SOURCE: Engine low coolant light/overheating engine with white smoke

The condensation inside the hood would bee from the coolant boiling out of the reservoir when it overheated. However, there must be a reason for the overheating and I can imagine it is not good. If you JUST purchased this car, you should be protected by the Lemon Law. Return the car to the dealership and insist that THEY find the problem or supply you with another car. 
If you have had it a while, then find  good mechanic before you warp the head and trash the motor.

Posted on Feb 17, 2009

  • 1 Answer

SOURCE: RENAULT LAGUNA 2.2DCI 2003 MODEL EXCESS CRANKCASE PRESSURE

This is quite a common problem,especially with the 2.2 dci engine,although as usual Renault wont admit the problem.The reason your engine throws the oil after a run and not when stationary is this problem is caused by the turbo pressurising the crankcase.You can rev the engine all day but when theres no load on it then the turbo is not working at full pressure and all is well.
The cure for the problem is to fit a new rocker cover which incorporates part of the inlet manifold.The breathing system on these engines is complicated and the rocker cover has to handle both inlet gases AND exhaust gases and although no one can explain why a new cover cures it,I suspect the plastic the cover is made of is not robust enough and either becomes porous or warped and this allows gases into the crankcase,pressurising it and focing oil out either through the dipstick or it blows out the blanking plug in the timing cover.
It is not a massive job to replace the rocker cover as long as the injectors come out easily.If they dont then youre in real trouble.Good luck,Duncan.

Posted on Feb 20, 2009

juncro
  • 467 Answers

SOURCE: bmw x5 3.td blue smoking coming out engine

RINGS AROUN THE PISTON, OIL LEAKING INTO THE COMBUSTION CHAMBER

Posted on Jul 21, 2009

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http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html

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http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html

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http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

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