Mitsubishi Colt battery light on ..new alternator and battery..

Car: Mitsubishi Colt
Variant: Ralliart
Model Year: 2013

Categories: Electrics, ECU, Warnings & Lights

The battery light flickers on and off beeping and it's had a new battery and alternator with no success
. Garages are stumped

Posted: Jun 14, 2024 (6 months ago)

Jill Woodhead

Points: 1

A wiring or ground / earth fault can sometimes cause this .

Posted Jun 14, 2024 (6 months ago)

whittingehame

Points: 38,790

Thank you would it need an expert on wiring..mechanic said something about it may be shorting round the back of the clock..would that be it do you think?

Posted Jun 14, 2024 (6 months ago)

Jill Woodhead

Points: 1

" it may be shorting round the back of the clock..would that be it do you think?" Never heard of that before , Have they checked the alternator is charging o.k ? Is the alternator a reconditioned unit as opposed to OEM ?

Posted Jun 14, 2024 (6 months ago)

whittingehame

Points: 38,790

Replying to post by whittingehame:
" it may be shorting round the back of the clock..would that be it do you think?" Never heard of that before , Have they checked the alternator is charging o.k ? Is the alternator a reconditioned unit as opposed to OEM ?

Yes brand new he thought that the battery was overcharging because of the alternator so he changed it..problem is it's intermittent so every time it's in of course it's not doing it..sods law!

Posted Jun 14, 2024 (6 months ago)

Jill Woodhead

Points: 1

No disrespect to your mechanic but " he thought that the battery was overcharging because of the alternator " He should have carried out a simple 2 minute load test on both battery and alternator to confirm or not rather than guessing . Check battery terminals , earth to engine , earth from engine / gearbox to chassis / body .

Posted Jun 15, 2024 (6 months ago)

whittingehame

Points: 38,790

Replying to post by whittingehame:
No disrespect to your mechanic but " he thought that the battery was overcharging because of the alternator " He should have carried out a simple 2 minute load test on both battery and alternator to confirm or not rather than guessing . Check battery terminals , earth to engine , earth from engine / gearbox to chassis / body .

Is there anything I could tell him to check?

Posted Jun 15, 2024 (6 months ago)

Jill Woodhead

Points: 1

You should not have to diagnose the problem , down to him . Is it not maybe a good idea to get a second opinion from another garage / mechanic ?

Posted Jun 15, 2024 (6 months ago)

whittingehame

Points: 38,790

I've tried 3 now..no one knows or can fix it! He said bring it whilst it's doing it but that's the point..it doesn't do it all the time but when it does it can go on for ages or not at all..frustrating

Posted Jun 15, 2024 (6 months ago)

Jill Woodhead

Points: 1

You could suggest to your mechanic who fitted the alternator that it may be faulty and to replace it under warranty .Especially as you paid for an alternator and battery he replaced that was not the fault .

Posted Jun 15, 2024 (6 months ago) Edited on Jun 15, 2024 (6 months ago)

whittingehame

Points: 38,790

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Colt Recalls (7)

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