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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 06-02-2020, 02:03 PM
maxi1211 maxi1211 is offline
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Join Date: Jul 2019
Posts: 19
Mein Auto:
2011 X5 Diesel

I am planning to replace the engine wire harness and would like to know how difficult it is.

My X5 has no power in the DDE so I am hoping is the engine wire harness.

The OBD also has no communication.

Any advise on how to do the job.

What else I should look for??

Thanks,
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  #2  
Old 06-02-2020, 08:30 PM
ChrisM011 ChrisM011 is offline
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Location: Los Angeles
 
Join Date: Jun 2007
Posts: 81
Mein Auto: e70 X5d, e36 M3
Unless you have a valid reason for replacing the entire harness you should probably diagnose why you have no power instead of just replacing the engine harness.


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  #3  
Old 06-02-2020, 08:49 PM
ard ard is offline
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Location: Sierra foothills, California USA
 
Join Date: Jul 2009
Posts: 21,602
Mein Auto: '12 X5 35d/E39M5/996TTX50
^agreed

That is a crazy plan. Figure out why there is no power...replacing harnesses is nuts.

Here:

https://www.newtis.info/tisv2/a/en/e...supply/h9tmiY6

Should be able to PRECISELY figure out whats 'wrong' and which wire is bad....
__________________
Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM
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  #4  
Old 06-02-2020, 08:52 PM
ard ard is offline
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Location: Sierra foothills, California USA
 
Join Date: Jul 2009
Posts: 21,602
Mein Auto: '12 X5 35d/E39M5/996TTX50
Any idea how you find yourself in this position? Bought the car new in 2011 and suddenly, one morning, no power to the DDE????

Or is it a more complexity story perhaps?
__________________
Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM
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  #5  
Old 06-03-2020, 07:02 PM
maxi1211 maxi1211 is offline
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Join Date: Jul 2019
Posts: 19
Mein Auto:
I bought the car last year and was having issues with the DDE and CBU.

I hired a mechanic to clean the CBU and he left the DDE compartment open to the elements. I did not realized that.

I sent my DDE, CAS and key to re-programed. After he installed the DDE the compartment was open to the elements and was flooded.

I cranked the car and did not start.

At first the DDE started giving me random codes on the OBD, then just stop communication. I checked and see everything under water. Tried to dry it but not success.

I end up purchasing a used DDE and sending to reprogram with the CAS and key. Since then have no communication with the OBD.

Another mechanic started testing and realized the DDE is not getting power. The fuse box is getting power. He believes possible a couple of the wires (only a couple of the wires do not get power) have blown.

He suggested to purchase the engine wire harness and hopefully that is the issue.

Do you have any other advise on how to tackle this issue.

The first mechanic just ignored me and he is telling me is not responsible for that matter so I pretty much got screwed
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  #6  
Old 06-03-2020, 08:46 PM
ard ard is offline
Resident Curmudgeon
Location: Sierra foothills, California USA
 
Join Date: Jul 2009
Posts: 21,602
Mein Auto: '12 X5 35d/E39M5/996TTX50
3rd world? Bummer. edit:Not being racist nor anything else, BTW. Just the kind of really bad BMW support I see there...

You need to find a different mechanic. Both of them are idiots.

If you looked at (and are able to read) the shcematics link I sent, you will see there are a few relays and fuses. These must be checked.

It is NECESASRY for a quailfid technicin to check EBERY SINGLE WIRE for damage and continuity...before buying 'an engine wire harness'.

You are getting nonsense advice from fly-by-night 'mechanics', and if you base your actions on this it will just be more pain...
__________________
Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM

Last edited by ard; 06-03-2020 at 08:48 PM.
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