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X5 E53 (1999 - 2006)
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  #1  
Old 12-14-2014, 10:21 AM
BMWX7 BMWX7 is offline
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Mein Auto: X5
Question 2005 X5 Some weird burnt smell coming in to CABIN occasionally & goes away.

Folks..have experienced some burnt smell (electric) coming in to cab briefly and then goes away. I know my batt is old (4yrs or so) and not sure of alternator. Could a old alternator cause such thing.? What else cld it be. Could it be the heater core perhaps..? Appreciate. It drives good with no eng light, while on heating when i put it in 19c it started blowing cold air..is that normal?
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  #2  
Old 12-14-2014, 08:00 PM
chatcher chatcher is online now
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Mein Auto: e46 m3
I'm guessing its burning oil coming from the valve cover gasket hitting the exhaust manifold. Look on the pass side of the motor for oil.
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03 E46 M3
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  #3  
Old 12-15-2014, 06:25 AM
BMWX7 BMWX7 is offline
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Thanks. The oil level does drop a little over time. I see oil drops hanging on the metal cover plate at bottom (doesnt wet the driveway). If its the valve cover..is it possible to check from above. Am guessing has to be from the bottom...removing the metal cover.
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  #4  
Old 12-15-2014, 05:37 PM
chatcher chatcher is online now
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Mein Auto: e46 m3
Your gonna want to look at the pass side of the motor from the top. If you see oil on the exhaust that's what your smelling. Its a pretty common failure on the 3.0. Also the CCV could be clogged. But my money is on the VCG.
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03 E46 M3
06 E90 330i
02 E53 X5 3.0
03 E85 2.5 Z4
03 dodge ram
05 ford expedition
03 rc51
04 600rr
RUNNING OUT OF GARAGE SPACE!!
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  #5  
Old 12-15-2014, 06:06 PM
puddinboo puddinboo is offline
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Mein Auto: 2003 BMW X5
last year my 3.0i blew a vcg and and then my ccv froze and hydrolocked my engine.(what a mess).
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  #6  
Old 12-16-2014, 01:46 AM
projectasia projectasia is offline
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My vcg leaked oil very slowly. But the oil pooled in the spark plug wells. You can take the plastic cover off, disconnect the coil and use a q tip to see if there is oil in there. My spot was passenger plug closest to the windshield.

It will run very rough until the oil burns off every morning.

Also for oil on the ground. I had a huge leak and did not know it since there is a large skid plate on the underside. That plate was full of oil drips. Although spared a messy cleanup in my driveway.

No oil on ground does no mean no leak.

Finally you said the smell was electrical? Now it is winter I noticed a strange burn smell when running the heated seats. Just a thought. What is the smell really? Oil. Coolant. Or electrical?
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  #7  
Old 12-22-2014, 11:54 AM
BMWX7 BMWX7 is offline
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Thanks projectasia n the rest of folks. Awesome responses, will take a look at the coil banks for oil residue and possibly in spring VCG as dont drive much. Thanks again.
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