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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-19-2013, 05:31 PM   #1
Rad811
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Key lock broken and battery flat!!!!

Hi,

I bought an e46 sedan today and knew that the car lock was broken. The key could just lock the car but i guess it was not charged enough as i could no longer open it now! ( A few hours after)
Any idea how i can re-open the car?

Many thanks in advance,
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Old 01-19-2013, 07:17 PM   #2
asma123
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you can open your trunk with the key and put the seats down and get in that way
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Old 01-19-2013, 09:17 PM   #3
jfoj
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Open trunk and get battery charged or jump the car?

Ebay for the door lock repair parts.

www.bmwgm5.com for info in case your GM5 module is questionable.

A E46 with only 1 keyfob is a dangerous thing!
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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Old 01-20-2013, 05:30 AM   #4
Rad811
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Thank you guys for the reply. But can the rear seats of an e46 sedan go down from the back?
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Old 01-20-2013, 12:59 PM   #5
sgoetz628
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Quote:
Originally Posted by jfoj View Post
Open trunk and get battery charged or jump the car?

Ebay for the door lock repair parts.

www.bmwgm5.com for info in case your GM5 module is questionable.

A E46 with only 1 keyfob is a dangerous thing!


Does the ignition have to be on for the key to be charging, or could I just leave it in overnight? I don't like to use the 2nd keyfob, as all the settings are different. Also, do you recommend charging the 2nd keyfob from time to time?

thanks
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Old 01-20-2013, 11:48 AM   #6
2003 325i
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they can if you have fold down seats. They don't from inside the cabin.
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Does anyone have a recommendation on which is the best high performance valve stems?
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Old 01-20-2013, 01:00 PM   #7
2003 325i
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definitely recharge second fob from time to time. I would think ignition would have to be on to charge the key but my bentley is at work so i'd have to see a wiring diagram (not sure if it's even in the manual).
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Does anyone have a recommendation on which is the best high performance valve stems?
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Old 01-20-2013, 01:07 PM   #8
sgoetz628
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Originally Posted by 2003 325i View Post
definitely recharge second fob from time to time. I would think ignition would have to be on to charge the key but my bentley is at work so i'd have to see a wiring diagram (not sure if it's even in the manual).

Will do then. Thanks
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Old 01-20-2013, 03:04 PM   #9
scottjoh
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Quote:
Originally Posted by sgoetz628 View Post
Does the ignition have to be on for the key to be charging, or could I just leave it in overnight? I don't like to use the 2nd keyfob, as all the settings are different. Also, do you recommend charging the 2nd keyfob from time to time?
The ignition needs to be in the Acc or On positions to charge the internal battery in the diamond keys. The key should be charged at the very least every 6 months for several hours.
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Old 01-20-2013, 05:00 PM   #10
jfoj
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The settings are not stored in the keyfob, they are in car memory.

If you save your seat position the same for position 1 & 2 and set all other things the same then you will not see a difference between the keyfobs.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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Old 01-20-2013, 06:15 PM   #11
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Quote:
Originally Posted by jfoj View Post
The settings are not stored in the keyfob, they are in car memory.

If you save your seat position the same for position 1 & 2 and set all other things the same then you will not see a difference between the keyfobs.
That is true. If you don't want the setting from the 2nd key to change the seat, mirror, etc then open the car with the key in the door instead of with the remote (the car won't know which key was used and therefore won't change anything.)
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Old 01-20-2013, 07:13 PM   #12
jfoj
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I think??? depending on how the car is coded, that radio station presets and climate control settings can be stored as well. Or at least the last climate control settings that were used may be recalled when the key is used?

It can be a bit of a PITA to get sorted, but as long as you are the sole driver it should not be too big of an issue.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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Old 01-20-2013, 10:57 PM   #13
sgoetz628
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First off, sorry to hijack the thread. Secondly, thanks for the advice. Great to learn new things about my car - even 10 years after!
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Old 01-21-2013, 10:49 AM   #14
04-330ci-ny
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FYI I've been locked out like that once and I called AAA to come open the car. The guy used one of those airbag wedges to get the driver door open enough to stick a metal rod in and and hit unlock.

To our surprise when he hit the button the car deadbolted into some sort of security mode. (apparently this has to do with a weight sensor in the seat recognizing that there's no one in the seat) He ended up leaving but I later discovered you have to hit the button multiple times and also lasso the drivers side door handle to get it.

I'm not sure the exact sequence but it was something like unlock button (center console) then lasso door and pull then unlock again..if anyone knows the exact sequence for the e46 security system it might be worth posting!
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Old 01-21-2013, 11:21 AM   #15
jfoj
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Some year cars might behave slight different, usually you need to push the center console button once, the pull the door handle.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose fan switch O-ring - BMW #13621743299
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Old 01-21-2013, 02:14 PM   #16
04-330ci-ny
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Quote:
Originally Posted by jfoj View Post
Some year cars might behave slight different, usually you need to push the center console button once, the pull the door handle.
Yeah I read that everywhere but beware on the 04 330Ci it's two unlocks...not sure what other models have this too
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