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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Aug-15-2017, 05:30:49 AM   #21
bimmerdriver
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Default Re: Does The E46 M3 Use More Power Parked Locked - or Unlocked?

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Originally Posted by sillieidiot View Post
Locked for sure if you have an alarm in my experience. My tests aren't that scientific though since I only test it when I go on trips and stuff. Leave car for 3 weeks locked = can't start, doesn't even turnover. Leave car for 3 weeks unlocked = barely starts lol If you lock it and disable the interior sensor, then it lasts about as long as just leaving it unlocked. I've done it multiple times although with different lengths of time. The only time when it didn't start for all states was when the battery actually needed replacement. Generally the 2 week mark is where the car will start up regardless if whether it's locked or not. Although my car is a 330ci so iono if that makes a difference with the M3. Should be similar though.
You either have a bad battery or something is drawing excessive current. My car regularly sits for 2-3 weeks alarm on with no problems ever.
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Discussing Does The E46 M3 Use More Power Parked Locked - or Unlocked? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)