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-   -   2004 bmw x3 (http://www.bimmerfest.com/forums/showthread.php?t=650087)

utfootball4 10-05-2012 12:49 PM

2004 bmw x3
 
I'm getting code P0174 - any idea what this code is?

x3brian 10-05-2012 01:42 PM

I think that one means you are running lean...most likely has to do with a crack in the intake boot behind the MAF sensor, but could be something else with the intake. Odbii codes are universal and don't pinpoint specific failures. Also if it is the intake, after replacement you will have to clear the code...it won't go away automatically.

Any other symptoms, noises or other codes?

chrisk03 10-05-2012 05:03 PM

Agree with x3brian, probably the intake boot. Well known issue on the X3...had same code last year on our 04 X3, replaced intake boot...fixed.

utfootball4 10-05-2012 05:41 PM

Took it to my bmw guy - it read the same code along with bad gas cap. My guy told me to replace gas cap and see how things go...

utfootball4 10-05-2012 05:42 PM

Quote:

Originally Posted by x3brian (Post 7116159)
I think that one means you are running lean...most likely has to do with a crack in the intake boot behind the MAF sensor, but could be something else with the intake. Odbii codes are universal and don't pinpoint specific failures. Also if it is the intake, after replacement you will have to clear the code...it won't go away automatically.

Any other symptoms, noises or other codes?

What kind of noises should i be looking for?

x3brian 10-05-2012 09:37 PM

Quote:

Originally Posted by utfootball4 (Post 7116544)
What kind of noises should i be looking for?

Nothing in particular just curious if drivability has changed since MIL got activated.

Quote:

Originally Posted by utfootball4 (Post 7116543)
Took it to my bmw guy - it read the same code along with bad gas cap. My guy told me to replace gas cap and see how things go...

Interesting. That code has more to do with intake than gas cap. I know my 09 has a separate dash light when the BMW gas cap code gets thrown. Keep us updated if problem comes back.

fivepointnine 10-06-2012 03:05 AM

I had that code and my intake book was cracked at the bellow part and my crank vent system was bad.

UncleJ 10-06-2012 07:06 AM

My '06 also has a separate light for the gas cap.:angel:

Kevingovro 10-09-2012 09:21 PM

Intake boot, Disa Valve, oil seperator and hoses... Could be a number of things

utfootball4 10-10-2012 05:33 AM

New gas cap and reset check engine light - all is well so far.

utfootball4 10-10-2012 05:35 AM

Quote:

Originally Posted by Kevingovro (Post 7124249)
Intake boot, Disa Valve, oil seperator and hoses... Could be a number of things

Let's hope the problem is solved....

legalfee 10-10-2012 06:00 AM

Quote:

Originally Posted by utfootball4 (Post 7116056)
I'm getting code P0174 - any idea what this code is?

With mine it was MAF sensor. Cleared the code but it came back weeks later. I removed and cleaned the air filter and cleaned the MAF sensor with cleaner I got from Auto Zone.

http://www.linquist.net/motorsports/bmw/maf

Kevingovro 10-10-2012 06:24 AM

Yeah the code will most likely come back in 60-100 miles

utfootball4 10-10-2012 10:11 PM

Quote:

Originally Posted by Kevingovro (Post 7124642)
Yeah the code will most likely come back in 60-100 miles

Been over 200miles - drive over 40miles to work each day....

utfootball4 10-11-2012 05:37 AM

Quote:

Originally Posted by chrisk03 (Post 7116499)
Agree with x3brian, probably the intake boot. Well known issue on the X3...had same code last year on our 04 X3, replaced intake boot...fixed.

How much did the repairs cost?

jdauria 10-11-2012 07:56 AM

You could probably change the intake boot yourself, but if not it should take <1hr of labor.

utfootball4 10-11-2012 10:51 AM

Quote:

Originally Posted by Kevingovro (Post 7124642)
Yeah the code will most likely come back in 60-100 miles

If it is the intake boot how long could I go before getting it fixed - 7-10days?

utfootball4 10-11-2012 10:53 AM

Quote:

Originally Posted by jdauria (Post 7127111)
You could probably change the intake boot yourself, but if not it should take <1hr of labor.

I am not handy - ill probably make it worst....

mlukas161 10-12-2012 10:20 AM

Quote:

Originally Posted by utfootball4 (Post 7127509)
If it is the intake boot how long could I go before getting it fixed - 7-10days?

If its just a tear in the rubber intake boot you should have time. Your engine may run lean and waste some gas, but its not dangerous IMO.

jdauria 10-12-2012 11:38 AM

Quote:

Originally Posted by mlukas161 (Post 7129735)
If its just a tear in the rubber intake boot you should have time. Your engine may run lean and waste some gas, but its not dangerous IMO.

Second this, I drove around in my e46 for a couple weeks before fixing my lower intake boot. But you have to be sure thats the problem :rofl: You can literally stick your hand/fingers and feel if there is a hole.

fivepointnine 10-12-2012 09:18 PM

intake boot is fairly easy to fix, you might bang up your knuckles trying to get that stupid plastic splash guard in and out. Biggest PITA is taking off the cabin filter housing

X3-terrestrial 10-13-2012 05:47 AM

Quote:

Originally Posted by utfootball4 (Post 7127514)
I am not handy - ill probably make it worst....

If the code hasn't come back in more than 200 miles, I wouldn't worry about it. The intake boot probably is fine and it just needed a new gas cap. The gasket around it develop cracks and dries out letting pressure escape from the tank.

x3brian 10-13-2012 08:25 AM

+1. Don't worry about it unless the code comes back. This is minor in the grand scheme and really only impact mpg/idle.

utfootball4 10-16-2012 04:08 AM

Quote:

Originally Posted by X3-terrestrial (Post 7131405)
If the code hasn't come back in more than 200 miles, I wouldn't worry about it. The intake boot probably is fine and it just needed a new gas cap. The gasket around it develop cracks and dries out letting pressure escape from the tank.

I spoke too soon - the light came back on last thur morning..... I notice when driving throughout my neighborhood when I step on the gas to accelerate I can hear a whistling noise for brief second...


**** It's a 2006 not 2004....

jdauria 10-16-2012 04:25 AM

how many miles do you have on the x3? How is she running, sluggish? how is your MPG?


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