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Old Aug 27, 2025 | 12:11 PM
  #1  
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Default 1999 Coupe

I brought my C5 to work yesterday and when I went to leave the office the car wouldn't start. I turned the key and nothing. No clicking from a weak battery and the engine didn't turn over. I got lucky where a couple of the guys I work with helped me "bump" start the car. Once I got it home it started no problem and it also started today without issue? Anyone experience this or have any thoughts? Thanks.
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Old Aug 27, 2025 | 12:26 PM
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No power whatsoever before bump starting? Courtesy lights, anything?

Maybe a loose ground, or an alternator going bad?

I have a 2000 M6 but, can't say I've run into that problem.
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Old Aug 27, 2025 | 01:10 PM
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Could be an early sign of an ignition switch going bad
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Old Aug 27, 2025 | 02:42 PM
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Originally Posted by T-RAY1978
Could be an early sign of an ignition switch going bad
/This
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Old Aug 27, 2025 | 02:49 PM
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I've had bad connections of the side terminals of the battery on both of my C5's that required regular cleaning after similar problems.
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Old Aug 27, 2025 | 03:16 PM
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Originally Posted by C5R USA
No power whatsoever before bump starting? Courtesy lights, anything?

Maybe a loose ground, or an alternator going bad?

I have a 2000 M6 but, can't say I've run into that problem.
Power was all good no issue there. Thanks for the feedback.
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Old Aug 27, 2025 | 06:32 PM
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Get your battery checked first !!
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