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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 08-10-2014, 07:34 PM
hiroshima_rx7 hiroshima_rx7 is offline
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idle problem + "missing" on high gears at low speed.

Hey guys,

just bought a 2008 3.0i X3, and it makes a weird hesitation on idle when at stop light.
the RPM stumbles/drop 200rpm and feels like the car is shaking or trying to move. (when the rpm bounces, the car feels like it wants to move forward. As if it also affect the drivetrain/transmission). And truck was consuming A LOT, well over 13.1 fuel consumption (KM/L)

It also is "missing" when on Manual-mode, when im trying to accelerate on a high gear but low-speed. (IE: 6th gear accelerating from 80 km/h, same for lower gears with a bit lower speed.) When going full throttle from lower gears and shifting at higher RPM, there is no problems.

Also When on normal automatic (not SD), first gear from a stop/red light is so slow and seems to be lacking power. It shifts 2nd at about 20 kmh and barely 2500rpm. Would it need to be reset/reprogrammed ??

just changed the spark plugs today. and the idle problem is still present.
didn't get to try the "missing" since we didn't go on the highway today.

What could be the cause of these problems?

Transmission ECU reprogramming? Clogged fuel filter ?


Any infos, tips, past experience with solutions is more than welcomed !!

cheers guys !!

Bruno
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  #2  
Old 08-11-2014, 10:04 AM
joylove joylove is offline
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Either a misfire or a failed sensor. Buy the $58 C110 code reader from eBay to determine which.
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  #3  
Old 08-11-2014, 11:24 AM
al_macaroni al_macaroni is offline
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Quote:
Originally Posted by joylove View Post
Either a misfire or a failed sensor. Buy the $58 C110 code reader from eBay to determine which.
+1
Definetely get the C110 code reader. I have a 2008 and had the very same issue. I got one and it allowed me to see exactly which items were sending error codes.
Thank you joylove for the recommendation!
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BMW CCA #422951

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  #4  
Old 08-11-2014, 11:49 AM
al_macaroni al_macaroni is offline
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Is your Check Engine Light on or has it come on in the recent past?
See the above posts regarding reading the CEL codes. This reader is geared toward BMW specific codes, but you can stop by an auto parts store like Advance Auto and ask them to check for any CEL codes with their generic reader. That might get you started before you get a reader specifically for BMWs.

You definitely want to know the codes, so you just aren't just stabbing in the dark.

For my car, I had multiple issues that all resulted in the same behavior that you are detailing.
1. I received a CEL code for the camshaft position sensors. I replaced these and the X3 ran well for two weeks (about 1,000 miles)

It was running better, but was not idling quite rite. The engine would "pulse" at idle after driving for 2 hours.

2. I changed my spark plugs and coils. There were no codes received for this, but I had 100k on them. Wow, it needed them. It was amazing how much power was restored with a good set of plugs.

3. I received a CEL code for the VANOS solenoids. I replaced these and I think this solved the idling and transmission lurching when at a stop.

4. I received a 3rd CEL code 1,000 miles after replacing the VANOS solenoids. This time it was for the two pre-cat O2 sensors. When I changed the O2 sensors, I also cleaned the electrical connection for the eccentric camshaft sensor.

All of the above took place over a 3 - 5 week time period.

I've been good for about 2,000 miles. If my issue returns, I may be replacing the eccentric camshaft sensor. I've read in various places online that those don't produce a CEL code when they go.

Just in sensors and solenoids, parts costs have been $600.
Definitely find out what ODB II / DME codes are present, so you are not just throwing parts and money at the problem.

Good luck
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2013 535i - ED, Oct 2012 | Cashmere Silver | Oyster/Black Nappa Anthracite | ZCW | Sirius | Air Blue 80
2008 X3 | Monaco | Sand/Black Light Poplar | ZAP | ZPP | ZCW | Xenon | Rear Fog
1988 Grand Wagoneer | Burgundy | Ghost Flames | 360 ci | Holley carb

BMW CCA #422951


Last edited by al_macaroni; 08-11-2014 at 11:51 AM.
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  #5  
Old 08-11-2014, 12:52 PM
joylove joylove is offline
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Quote:
Originally Posted by al_macaroni View Post
+1
Definetely get the C110 code reader. I have a 2008 and had the very same issue. I got one and it allowed me to see exactly which items were sending error codes.
Thank you joylove for the recommendation!
Good news! :thumb up: I was very impressed with mine when it diagnosed a warning light that was simply a misplaced gas filler cap. Money well saved.
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  #6  
Old 08-11-2014, 05:22 PM
broken08 broken08 is offline
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So if my x3 is having rough running issues but there is no CEL and no codes present with my standard OBDII scanner, will this C110 thing magically tell me some secret codes that a regular OBDII scanner won't?
If so I'm going to buy one for sure. But if it's just reading standard OBDII codes, you can get a bluetooth scanner and app for $12 on ebay.
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  #7  
Old 08-11-2014, 05:23 PM
broken08 broken08 is offline
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Also, keep and eye on my thread too
http://www.bimmerfest.com/forums/sho...d.php?t=784359
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  #8  
Old 08-12-2014, 09:43 AM
joylove joylove is offline
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Quote:
Originally Posted by broken08 View Post
So if my x3 is having rough running issues but there is no CEL and no codes present with my standard OBDII scanner, will this C110 thing magically tell me some secret codes that a regular OBDII scanner won't?
If so I'm going to buy one for sure. But if it's just reading standard OBDII codes, you can get a bluetooth scanner and app for $12 on ebay.
It's absolutely not reading OBD 2 codes only. Here it is talking to my DSC module, which does not support OBD2 since OBD2 is strictly bounded to emissions and hence only ever talk to DME and EGS.

As to whether on not it will reveal more information about your particular issue would surely depend on what the issue is and if there is a way to detect it.

What it may support is a deeper level of debug and the correct description of a code you have detected.

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  #9  
Old 08-12-2014, 10:07 AM
broken08 broken08 is offline
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Ok, that's cool. I'm ordering one now in hopes I can find a weird sensor or other code.
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  #10  
Old 08-12-2014, 12:53 PM
al_macaroni al_macaroni is offline
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Here are some examples of the BMW specific trouble codes I pulled off the C110 the last time I had issues.

Click image for larger version

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ID:	458096


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2008 X3 | Monaco | Sand/Black Light Poplar | ZAP | ZPP | ZCW | Xenon | Rear Fog
1988 Grand Wagoneer | Burgundy | Ghost Flames | 360 ci | Holley carb

BMW CCA #422951

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  #11  
Old 08-12-2014, 03:25 PM
swampX3 swampX3 is offline
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a good overview of low cost scanners

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  #12  
Old 08-12-2014, 04:23 PM
swampX3 swampX3 is offline
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low $$$$ blower for home smoke tester

http://www.youtube.com/watch?annotat...&v=SWFYYoImWQg
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  #13  
Old 08-13-2014, 09:49 AM
hiroshima_rx7 hiroshima_rx7 is offline
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thanks for the tips guys.

i didnt have the CEL on at any point at all.

i already scanned with the OBD2 scanner. it gave me a pending code which was Cylinder 2 Misfire.
Erased it, and problem was still there. But its still with no CEL.

The more i read on the internet, it seem to go toward Knock Sensor being faulty.
Or maybe one of the coil (no.2), but i doubt, since it would actually give a code as soon as it misses.
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  #14  
Old 08-13-2014, 09:57 AM
broken08 broken08 is offline
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Swap the coil between two cylinders and see if the misfire moves with it.
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  #15  
Old 08-13-2014, 10:14 AM
hiroshima_rx7 hiroshima_rx7 is offline
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Quote:
Originally Posted by broken08 View Post
Swap the coil between two cylinders and see if the misfire moves with it.

thats the thing, it doesnt give any code.
the first time i checked it, it was not even an active code, but only as a pending code.
means it did it once, and probably the battery was unplugged but the code never actually erased/removed.
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  #16  
Old 08-13-2014, 01:08 PM
joylove joylove is offline
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Quote:
Originally Posted by hiroshima_rx7 View Post
thats the thing, it doesnt give any code.
the first time i checked it, it was not even an active code, but only as a pending code.
means it did it once, and probably the battery was unplugged but the code never actually erased/removed.
Erase it and see if it comes back.
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  #17  
Old 08-20-2014, 08:37 AM
hiroshima_rx7 hiroshima_rx7 is offline
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Quote:
Originally Posted by joylove View Post
Erase it and see if it comes back.
problem is still there, and still won't give any codes.

im starting to look at a faulty Knock sensor.
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  #18  
Old 08-20-2014, 03:44 PM
joylove joylove is offline
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Pending code is all the information you need. I guess it only becomes active after a certain number of counts but if you clear all codes and a pending one pops up, you have your diagnosis. If you have no codes then you might need to log some stuff while the fault occurs.
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  #19  
Old 08-21-2014, 12:20 PM
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X3emist X3emist is offline
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Coil

You probably have a bad coil (or two)
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  #20  
Old 08-21-2014, 09:46 PM
broken08 broken08 is offline
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Keep an eye on a master thread I started about this problem and post what you tried there
http://www.bimmerfest.com/forums/sho...d.php?t=790428
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  #21  
Old 08-25-2014, 09:52 AM
mtbrdad mtbrdad is offline
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Quote:
Originally Posted by broken08 View Post
Keep an eye on a master thread I started about this problem and post what you tried there
http://www.bimmerfest.com/forums/sho...d.php?t=790428
Correct me if I'm wrong but aren't there significant differences between the 2006 and 2007 engines and transmissions?
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  #22  
Old 08-25-2014, 10:45 AM
hiroshima_rx7 hiroshima_rx7 is offline
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Mine is a 2008 ...


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  #23  
Old 08-25-2014, 04:30 PM
Supercourse Supercourse is offline
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Quote:
Originally Posted by mtbrdad View Post
Correct me if I'm wrong but aren't there significant differences between the 2006 and 2007 engines and transmissions?
Yes, you are right.

2007 N52 engine is different in quite a few ways, especially lighter in weight through use of magnesium, but probably the significant things relating to chasing down fault codes include:

- valvetronic and double VANOS (M54 had just VANOS)

- electric water pump

- better crankcase vent valve design, and no dipstick

Don't think there are major differences with the GM A/T's hardware-wise, maybe just in the way they are electronically controlled.
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  #24  
Old 08-25-2014, 05:49 PM
joylove joylove is offline
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There's also the N52 and N52 KP for the LCI cars.

http://www.tontongreg.fr/pdf/2007_EN...TRODUCTION.pdf
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  #25  
Old 09-05-2014, 04:50 PM
hiroshima_rx7 hiroshima_rx7 is offline
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ended up bringing the truck to the dealership from which i bought it from.


they called me, telling me that they are replacing valves (i hope lifters and the head, since there is a Service Bulletin out for this).
they are waiting for some parts. so when ill get the truck back, ill see if the hesitation is still there...

also, when they sold it to me, on august 6th (if i remember) they told me they only had done safety inspection since they took the truck in as a ''trade-in''.
and called them on the friday, to tell them that there was the hesitation problem and also a loud metal clunk in the back. ( i am a mechanic, so i told them something is either loose in the rear, or something is completely broken.) they told me, dont worry, all is fine, we checked it before selling it.
well, when they looked at the truck this week. they then called me to tell me that the rear driver side coilover is BROKEN in half.... WOW what a nice safety inspection.

i am driving with my 5 months old son in the truck everyday.....

Last edited by hiroshima_rx7; 09-05-2014 at 04:51 PM.
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