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X5 E53 (1999 - 2006)
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  #1  
Old 07-24-2009, 08:16 PM
goran123 goran123 is offline
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Location: California,Milpitas
 
Join Date: Jul 2009
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Mein Auto: Bmw x5 4.0
2001 x5 misfire

Hi everyone!
I'm new here and hoping someone can help me.on my x5 2001 4.0 every few miles there
is misfire and now service engine is on with code 3447 1.I dont know what thats meen.Please help
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  #2  
Old 07-25-2009, 10:04 AM
UncleJ UncleJ is offline
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Location: Silicon Valley
 
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Mein Auto: '06 X3
You need to take it in to the shop. There are lots of great indy shops in your area. Dinan in Mountain View is close, as is the Ultimate Driving Machine in Cupertino. There are many others that specialize in BMWs. They should be able to fix your problem. Knowing what the problem is will not fix it, although it is nice to know what the car is "telling you", it still needs to be fixed.
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  #3  
Old 07-26-2009, 12:13 AM
goran123 goran123 is offline
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Location: California,Milpitas
 
Join Date: Jul 2009
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Mein Auto: Bmw x5 4.0
bmwx5

I hope you are realizing that we have this forum so we do not go to a dealer , and pay arm and leg for simple fix like this.THANK YOU VERY MUCH
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  #4  
Old 07-26-2009, 09:26 AM
UncleJ UncleJ is offline
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Mein Auto: '06 X3
Absolutely, that is why I recommended you take it to a good indy shop where you will not have to pay "an arm and a leg" to get it fixed. As I said, knowing what the problem is doesn't fix it.
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  #5  
Old 07-26-2009, 11:41 AM
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Zulu95 Zulu95 is offline
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Join Date: May 2004
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Mein Auto: 2001 X5 3.0L
Or you could just start "throwing' parts at it in the hope......
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  #6  
Old 07-26-2009, 05:49 PM
Funf Dreisig Funf Dreisig is offline
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Location: USA
 
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Mein Auto: 77 530i & 09 35d
Quote:
Originally Posted by goran123 View Post
Hi everyone!
I'm new here and hoping someone can help me.on my x5 2001 4.0 every few miles there
is misfire and now service engine is on with code 3447 1.I dont know what thats meen.Please help
Our late lamanted 2001 X5 4.4i had a habit of throwing misc error codes related to carbon build up in in the combustion chambers. One of these was the misfire code. I good friend, who was the service manager for our local BMW dealership, explained that I had two choices: pay him a wad of money to clean up the heads etc or go out and drive it like it was stolen. I chose the later.

Specifically I loaded up the utility trailer and ran that puppy through the gears in manual mode while going up hills. I'd start by pulling the RPMs up to near redline in each gear and hold it there until the hesitations stopped. Then I'd shift and do it all over again in the next higher gear. It's pretty easy to find places around here to do this in 2nd, 3rd and maybe even 4th. But 5th gear near red line is a little bit fast for cresting a hill unless you have a friend on the other side to assure you that you aren't going to meet a car with the optional mega flashing light package.

After I got the hesitations to stop, I'd reset the error codes to assure that that took care of the problem. It always did.

Funf Dreisig

p.s. He knew I had a 60's 911 and knew the drill of how to 'blow out the cob webs'.

Last edited by Funf Dreisig; 07-26-2009 at 05:54 PM.
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  #7  
Old 07-27-2009, 01:40 PM
UncleJ UncleJ is offline
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Mein Auto: '06 X3
I "blew the cobwebs out" years ago, and threw a rod in a '68 2002. Be careful if you try it with a high mileage car. Personally I would opt for the shop (indy of course) approach.
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