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  #15511  
Old 11-29-2022, 11:43 AM
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Quote:
Originally Posted by Aleman View Post
Tracked down a battery parasitic draw by testing every fuse for voltage drop. Battery was completely dying in 48 hours. Ended up pulling fuse #74, which is labeled as 'Telephone'. Didn't lose any electronic accessories by pulling that fuse (because who needs 'phone' these days?), but stopped the draw. I'm losing about .10 to .2 volts per 24 hours now. I can live with that.

Also spayed the underside with Carwell rust inhibitor. It's the second winter I'm putting this stuff on, and it seems to be working great so far. Stuff is good for rubber and electric components as well as for metal.
Yep, 74 is the fuse for the telematic unit, which is the bluetooth unit for phone. It is a frequent cause of parasitic drain. Both times that it has occurred on my X was after an alternator death and battery drain. Replaced the alternator, charged the battery, but would have battery drain. After some research, I pulled fuse 74 and that solved the problem. I have seen disconnected and removed the unit as I wasn't using it anyway and I have now installed an AVin unit, so I really don't need it.
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  #15512  
Old 11-29-2022, 04:50 PM
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Yesterday and today were spent putting new parking brake shoes on and adjusting same and checking the fluid quantity in the ZF-slush-box and transfer case. And since I've been trying to track down a very occasional and seemingly random fuel cap loose message which hasn't gone away with a new cap, I yanked the right rear wheel well liner to check the fill/vent lines, and surge tank.

Happy to report that the fluids looked fine (although I know the transfer case needs a full change soon) and the plumbing under the liner looks fine as well. I will say, if you are a clean freak about your X5, don't pull a wheel well liner! 20 years of dirt, bugs, leaves, and other junk was waiting for me to clean out.
***update with a pic of the general area for posterity***


Next stop on my search for fuel vent problems is to pull the fuel filter/charcoal canister cover and get a look at all the lines/plumbing there. I have a new leak diagnosis pump and dust filter to install while I'm in there. I also want to pull the cover running under the drivers side of the car, from the filter forward to clean the area and look for rotted lines, loose connections, etc.

I think she's ready to drive to Iowa to chase some birds. She's been running strong and relatively drama free for several months...fingers crossed!
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1993 Mopar 318 Jeep Grand Cherokee - original owner
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Last edited by Henn28; 12-01-2022 at 03:49 PM.
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  #15513  
Old 11-29-2022, 06:56 PM
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I spent the past two days installing a 10.25" AVIN Android head unit.





It looks great and everything seems to work, except I have no sound.


I had a stock DSP setup, and according to everything I read this should be working, but I think the factory amp isn't turning on so I get no audio. Anyone hit this one before and have suggestions?
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  #15514  
Old 11-29-2022, 08:32 PM
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Quote:
Originally Posted by zhent View Post
... I had a stock DSP setup, and according to everything I read this should be working, but I think the factory amp isn't turning on so I get no audio. Anyone hit this one before and have suggestions?
Common problem. You need a way to activate the DSP amp - via a datagram on the data bus, not via a wire etc.

I think the easiest way to do this is with the iBusApp and a Resler interface...

https://www.ibus-app.de/index_en.html
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  #15515  
Old 11-29-2022, 09:01 PM
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Quote:
Originally Posted by zhent View Post
I spent the past two days installing a 10.25" AVIN Android head unit.





It looks great and everything seems to work, except I have no sound.


I had a stock DSP setup, and according to everything I read this should be working, but I think the factory amp isn't turning on so I get no audio. Anyone hit this one before and have suggestions?
That looks fantastic. Very clean install.
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Original owner 2002 E53 X5 4.4i to 4.6i swap
1993 Mopar 318 Jeep Grand Cherokee - original owner
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1972 Audi Fox
1986 Saab 900S
1996 BMW Z3
1998 BMW E36 M3 Sedan
2004 BMW E46 M3
2006 Audi A3 Quatro
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  #15516  
Old 11-30-2022, 08:02 AM
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Quote:
Originally Posted by zhent View Post
I spent the past two days installing a 10.25" AVIN Android head unit.



Sweet! How much to install one in mine? Mine is simpler. No DSP!
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  #15517  
Old 11-30-2022, 08:27 AM
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Quote:
Originally Posted by zhent View Post
I spent the past two days installing a 10.25" AVIN Android head unit.





It looks great and everything seems to work, except I have no sound.


I had a stock DSP setup, and according to everything I read this should be working, but I think the factory amp isn't turning on so I get no audio. Anyone hit this one before and have suggestions?
When I installed my Avin unit, I tracked down a no-sound issue to the wires being loose in the back of the big square connector in the trunk. Pushed them into the brick, and all was good.

Also agree with what wpoll said. You'll need your iBusApp and a Resler interface situation sorted out, since that's what controls the DSP system.
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Last edited by Aleman; 11-30-2022 at 09:55 AM.
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  #15518  
Old 11-30-2022, 10:13 AM
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Originally Posted by Fifty150hs View Post
Yep, 74 is the fuse for the telematic unit, which is the bluetooth unit for phone. It is a frequent cause of parasitic drain. Both times that it has occurred on my X was after an alternator death and battery drain. Replaced the alternator, charged the battery, but would have battery drain. After some research, I pulled fuse 74 and that solved the problem. I have seen disconnected and removed the unit as I wasn't using it anyway and I have now installed an AVin unit, so I really don't need it.
I'm also running the Avin unit, and I suspected that was the source of the drain. Nope. #74 fuse was pulling 430 milliamps, and an acceptable level of total draw on the battery should be 50 milliamps or less. No wonder! Glad to hear it's kind of a known issue on the E53.
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  #15519  
Old 11-30-2022, 11:17 PM
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Originally Posted by X5chemist View Post
Sweet! How much to install one in mine? Mine is simpler. No DSP!
HAHAHAHA!!!

No.
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  #15520  
Old 12-01-2022, 12:13 AM
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bought her a new idle control valve hope its a bit warmer when it gets here

setting several other codes and its not carboned up at all, but wont idle, seems like the logical starting point
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