E46 320d wont start?? - BMW Forum - BimmerWerkz.com
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#1 (permalink) Old 10-26-2005, 04:08 PM
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Unhappy E46 320d wont start??

HI people new to the forum here so be gentle..
Friend of mine has an '02 E46 320d and has had a bump from the rear. No airbags have gone off and its not too bad but thething is the car wont start anymore.
The original battery is damaged and when a jumper battery is connected it powers up all the dash but when the key is turned the engine just clicks but wont turn over.

We have checked over some of the fuses but cant understand why it wont start.

Can anyone shed any light on this and if so try and point us into the right area and what we should check.

Thanks in advance
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#2 (permalink) Old 10-26-2005, 06:00 PM
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1. weak battery. change the battery. do not use jumper cables.
2. starter busted, ie not throwing onto the flywheel. do point1 first, then bang on the starter with a hammer, if non go then replace starter.
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#3 (permalink) Old 10-26-2005, 08:23 PM
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thanks for the info, should it start if i connect a booster pack? being a diesel and drawing a heavy cranking current would a new battery be better?
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#4 (permalink) Old 10-27-2005, 10:28 AM
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i think a new battery is always better. cheap, and definitive.
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#5 (permalink) Old 10-29-2005, 06:49 PM
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The original battery says 640A, if i was to add a 720A battery am i correct in assuming that it will be better than adding a 570A battery?
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#6 (permalink) Old 10-29-2005, 08:56 PM
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Best battery for your car and all E46 is an "Interstate", Part# MTP-91 (Mega-Tron Plus - 85 Months - 700 CCA), it fits perfectly and you got more than 7 years lifespan on it, mintenance free for only $100.00.
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#7 (permalink) Old 10-31-2005, 08:20 AM
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Quote:
Originally Posted by zibby
Best battery for your car and all E46 is an "Interstate", Part# MTP-91 (Mega-Tron Plus - 85 Months - 700 CCA), it fits perfectly and you got more than 7 years lifespan on it, mintenance free for only $100.00.

yes, also: even the batteries sold by dealers are not good. a lot of aftermarket stuff has hydrogen vents ion the wrong place, go with iterstate like zibby said.
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#8 (permalink) Old 10-31-2005, 01:32 PM
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i would 'try' t find that battery but being in the UK it could prove quite difficult never mind consider shipping.

Ive managed to get hold of an bmw battery and a larger 720A one. The Bmw battery has been charged up and it started up no problem.

Just need to sort some diagnostic software to interrogate the ecu.
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