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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 01-19-2020, 01:51 PM
Dylancoulter92 Dylancoulter92 is offline
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Join Date: Jan 2020
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Mein Auto:
2003 330xi won't start

Hi guys,

I'm new to bmw's and I'm also not the most mechanically inclined but would rather fix it myself then taking it into a shop. I have had an issue with my 2003 330xi not starting. It's cranking, getting fuel, fuel pump was just replaced along with all the fuses associated with the fuel system. New cooling system was installed 20,000km ago and just replaced the spark plugs today.

The day before it wouldn't start anymore, I was driving down the road at 30km/hr the engine shut off along with all electrical but then all power came back on so I pushed in the clutch turned the key and it started right back up and ran fine until I tried to start it the next morning. Don't know if that helps diagnose what's wrong but just seemed weird that it did that the day before it stopped running. Also my car does have 320,000km on it
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Old 01-20-2020, 10:09 AM
u.nanimous u.nanimous is offline
Certifiable BMW Whackjob!
Location: SE Michigan
Join Date: Oct 2014
Posts: 5,266
Mein Auto: 1999 740iS, 2008 335xi
Sounds like a possible ground strap issue.

Posted through Tapatalk downloaded to my neural implant

2005 Venture Extended LT - what else you gonna drive when you have 6 kids, cargo and still want better than 10MPG
1999 740iA - long term project/summer DD
2000 Impala LS - RIP 12/23/2016, officially totaled by insurance company
2001 330xiA - fXtXeX/son project - now April's car
2008 335xiA - winterbeater Impala replacement
2002 530i/5 - 2.5 years searching...and it is John's car
1989 535i/5 - the spare car
2002 325xiA - to be Charlotte's when she gets her license (?2019?)
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Old 01-22-2020, 06:44 PM
bimmerrimmer bimmerrimmer is offline
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Get your engine grounding wires checked. also possible alternator fault.

Edit: was beaten by u.nanimous

Last edited by bimmerrimmer; 01-22-2020 at 06:46 PM.
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