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X5 E53 (1999 - 2006)
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Old 11-21-2005, 11:38 AM
asad asad is offline
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Location: UK
Join Date: Oct 2004
Posts: 29
Mein Auto: 04' X5 4.4 Sport
Transmission Failure !

Tried to turn engine on this am - Wouldn't start !! Lights, ventilation, on-board screen all came on but engine did not start ! Transmission failure prog. beeped on warning. Called BMW assist - diagnosed problem as battery failure and replaced it.

My question is: does this happen to BMW X5s that are only a year old and do I need to consider any other points other than it being simply a battery failure?

Not sure why this happened as a day before the vehicle was fine and no battery or other failure warnings showed up.

Any similar experiences of this ?
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Old 11-22-2005, 01:49 AM
X5Sport X5Sport is offline
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Location: United Kingdom
Join Date: Jan 2005
Posts: 44
Mein Auto: 2005 X5 3.0D Sport Auto
Batteries can fail at any time, especially if a cell shorts out. Usually a battery should last 6 - 8 years depending upon usage, but there's always the chance of a premature failure. My oil pressure sensor went within 3 months of getting my X5 3.0D in March '05.

I had a cell short on a Vauxhall a few years back and it took the alternator out too. Battery was three years old and the car was garaged and driven 40 miles per day. It was an expensive day!!

Cold weather usually finds the weak components. Let's hope the new battery solves it all for you.
It's not a truck, it's an SAV

Last edited by X5Sport; 11-22-2005 at 01:53 AM.
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Old 11-22-2005, 02:48 PM
BKX5 BKX5 is offline
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Location: Brookyln
Join Date: Oct 2005
Posts: 6
Mein Auto: BMW X5
the same problem happen to me and it was my battery they said that it was leaking...the dealership changed the it and haven't got the msg yet
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Old 11-23-2005, 08:05 AM
lbj lbj is offline
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Location: Colorado
Join Date: Oct 2004
Posts: 20
Mein Auto: BMW X5
I concur that batteries can go at any time. They can go early or late. Electrics are finnicky.

The battery may have just been a bad one or perhaps there has been a slow drain on it over time and it has been constantly charged everyday because of that.

I am sure the dealer tested the alternator/regulator as well at the time of the battery replacement to see if they were the source of the problem.

That said, in over 30 years of driving, only once when a battery went dead and quit operating entirely and in need of replacement, was the cause something other than the battery itself.

The statistics here tell me the battery replacement will solve your problem.
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