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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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  #1  
Old 06-24-2015, 09:34 AM
Snolls Snolls is offline
2007 X5 3.0si
Location: Boston
 
Join Date: Mar 2014
Posts: 26
Mein Auto: 2007 X5
Back Again. This time: iDrive, CEL (P0050, P0155) and electrical?

Been a while... Hope you're all well.

2007 x5, 3.0, 105K miles

Woes of the past few months:

1. Intermittently ongoing since last autumn: iDrive knob doesn't do anything when pressed. Easy to diagnose hardware vs. software problem? DIY or shop?

2. Since Jan./Feb. of this year: CEL is on. Generic reader codes are P0050 and P0155. O2 sensors? (TA at dealer said he wasn't so sure, but didn't elaborate.) DIY or shop?

3. Intermittently, past 2-3 days: Emergency brake acting funny? Dash lights go on. System says ABS, DSC, EMB, etc. malfunction. (No codes on the generic reader.)

Am wondering though... if (all of) these are really mechanical or if it's electrical/computer? Car is hitting the 7-8 year mark when most electrical goes batty. Suggestions?

(4. I've been reading there's an iDrive reboot/reset by holding 2 elect buttons and the volume on/off. But mine doesn't have 2 eject buttons. Any iDrive reset procedure for mine? Searching turns up a lot of nothing for the E70.)

Thanks in advance, folks. (Is Ard still around?)
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2007 BMW X5 3.0si
2013 Ford Explorer XLT

Last edited by Snolls; 06-24-2015 at 09:52 AM. Reason: Sexism
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  #2  
Old 06-24-2015, 10:26 AM
FredoinSF FredoinSF is online now
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Location: NorCal and Reno
 
Join Date: Nov 2009
Posts: 2,595
Mein Auto: 650i 330cic X5d 428i
A failing battery will cause all sorts of error messages. I would get the battery tested first.

Also, this guy on You Tube who is a BMW mechanic suggests reseting systems by disconnected the negative terminal for several minutes. I used his DYI many times and he is extrememly detailed and accurate.

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  #3  
Old 06-24-2015, 10:41 AM
Snolls Snolls is offline
2007 X5 3.0si
Location: Boston
 
Join Date: Mar 2014
Posts: 26
Mein Auto: 2007 X5
Will give that a shot. Can I just reconnect the battery or do I need to worry about reprogramming anything?
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  #4  
Old 06-24-2015, 06:41 PM
FredoinSF FredoinSF is online now
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Location: NorCal and Reno
 
Join Date: Nov 2009
Posts: 2,595
Mein Auto: 650i 330cic X5d 428i
I have not had to do the reset, although I recently replaced the battery on the 650 myself because no one else in Reno would touch it - other than the dealer it at $450 before tax! Replacement and registration of new battery went without any issue. All setting came back as before, no reprogramming required. The difference is I had not errors showing when I started, so I don't know what you will get.
On the X5 you will probably get a 4x4 or active steering warning (if you have it) but resetting it entails turning the steering wheel lock to lock a couple of times.

If it were my car I would get battery tested and try the reset. Not much to lose, and batteries are cheap - relatively speaking of course...
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  #5  
Old 06-24-2015, 09:06 PM
ard ard is online now
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Location: Sierra foothills
 
Join Date: Jul 2009
Posts: 11,331
Mein Auto: '12 X5 35d/E39M5/996TTX50
I do not thing the OBD codes are battery. Reset them, of they come back then not battery.

Other stuff CAN be caused by battery. Do you want to chase down codes or invest $200 in a battery? Within the next year you will likely be stranded- maybe the forst hard cold day in oct/nov.

Did you fully read the two codes? These are "Heater" codes. This either means 'both O2s have a heater element go bad' or 'something else'.... get a schematic and look for the fuse that supplies the o2 preheat circuit. Aso look at each connector and make sure they are snug, undamaged and not water logged or corroded. When the o2 sensor coupling is damaged, the classic is "o2 heater failure" almost immediately after start. Usually it takes the DME a while to decide the O2 is bad- car gets up to temp before the DME begins to look. But a bad heater shows up right at ignition- when the DME is trying to get them up to temp. Both at once points to one common failure point. IMO

Not sure with #3. do that after the battery is solid. But o2s I am not thinking battery.

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  #6  
Old 06-25-2015, 07:19 AM
Snolls Snolls is offline
2007 X5 3.0si
Location: Boston
 
Join Date: Mar 2014
Posts: 26
Mein Auto: 2007 X5
Thanks. I did the battery disconnect. Not sure if it did anything, since the errors were intermittent, so we'll see.

Doesn't seem like reprogramming is needed, but I can't figure out how to set the clock... the iDrive knob still isn't responsive. Maybe there's gunk in there.
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Last edited by Snolls; 06-25-2015 at 07:21 AM.
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  #7  
Old 06-25-2015, 07:29 AM
Snolls Snolls is offline
2007 X5 3.0si
Location: Boston
 
Join Date: Mar 2014
Posts: 26
Mein Auto: 2007 X5
Thanks, Ard.

The O2 codes didn't go away after battery disconnect. (Or did you mean clearing them with the scanner?)

Will check fuses. (You don't happen to have a schema handy, do you?)
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  #8  
Old 06-25-2015, 08:09 AM
ard ard is online now
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Location: Sierra foothills
 
Join Date: Jul 2009
Posts: 11,331
Mein Auto: '12 X5 35d/E39M5/996TTX50
have to use a scanner to clear.

No schems. I think there is an online WDS somewhere
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