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X5 E53 (1999 - 2006)
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  #1  
Old 07-18-2014, 03:46 AM
camerontaylor camerontaylor is offline
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Location: spalding england
 
Join Date: Jul 2014
Posts: 2
Mein Auto: x5 4.4 i
Angry Parasitic battery drain HELP!!!!!!!!

Where do I start,

This 2002 X5 4.4 v8 is driving me nuts, Basically if the car is not driven after 3 days the battery is dead!!!!!
Ok, I have pulled all the usual suspect fuses and noted in particular, if I pull the fuse in the rear entertainment fuse bank, number 72 I think!!! the current draw is almost halved, cool I disconnected every single item in the whole of the back entertainment system including all connections that are in the battery compartment and all connections to the sat/nav and cd auto charger, to my frustration no change in the current drawn .
I have noticed that one bmw owner a few years back had the same issue and he resolved his by installing a relay between ignition and fuse 72, don.t like that Idea want to resolve the issue correctly.
I have also replaced the FSU and that has not solved the problem!!!

Issue number 2, the sat/nav does not register on the main head unit, have replaced the sat nav unit twice with serviceable second hand units and still no joy, would this fault be linked to the battery drain and module 53?????

WHERE DO I GO NOW???????
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  #2  
Old 07-21-2014, 09:32 AM
Mandalawi Mandalawi is offline
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Location: IRAQ
 
Join Date: Jul 2014
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Mein Auto: X5 E53
Dear, it happened with my e53 3.0 and also tried many things, but finally I did find the problem, an earth connection between the chassis and the engine was loose, so I tightened its 2 screws, imagine the problem solved.
Hope this will help you, check your chassis connections...
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  #3  
Old 07-24-2014, 03:28 AM
camerontaylor camerontaylor is offline
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Location: spalding england
 
Join Date: Jul 2014
Posts: 2
Mein Auto: x5 4.4 i
earthing points

Many thanks for your suggestion,
I am away on business but will check out the earthing points when back, hope it works
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