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BMW 3-Series (E90 E92) Forum
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E90 Alternator Field/Excite Wire?
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01-07-2020, 10:01 AM | #23 | |
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Quote:
https://youtu.be/4ugoWs8ec5s And again, just like you this is the car running at 14.3v and it's rock solid https://youtu.be/66BiquB6dTg In the UK you can pick up a Lucas alternator for £298.48 ($391.47) and fitting really isn't too hard to be honest. You just disconnect negative battery cable, remove auxiliary belt from alternator pulley, disconnect power and glow plug relay cable from alternator, remove top and bottom alternator bolts and then carefully pry it out, installation is just the reverse. The hardest part is actually aligning the holes back up, the bottom hole has a sleeve that snuggly fits over the engine mount so it's quite hard to align it just right, but I'd say put a bit of grease on it would have been far easier. |
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01-08-2020, 03:55 PM | #24 |
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Unfortunately for us down under its only direct bmw or generics. Just have a brand new one ordered from bmw for AUD1800, which kinda suck. I'll definitely give it a try. Cheers for the pointers
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02-17-2020, 06:20 PM | #25 |
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Hi guys I have a 320i e90 and I've been having an issue with the car not charging until I restart the car like 100 times 😭
Check this link out Plz help Cheers |
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02-17-2020, 06:21 PM | #26 |
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02-17-2020, 08:17 PM | #27 |
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Alternator swap fixed it for me. Considering the windings, bearings and brushes looks fine, I'm guessing the voltage regulator shot itself intermittently. Before the fix, I've noticed that its more prevalent on cold days (< 20 degree by our standard) or maybe its just in my head
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02-19-2020, 06:42 AM | #28 |
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This sort of thing happened to me on my last E90 330d, after buying an ebay OEM equivalent alternator. Sometimes it wouldn't be charging but after a few weeks, it would always get to 14V+ albeit a few seconds after the start.
After having one of those dreaded charging fault messages on the cluster, I invested in a USB lighter socket charger with a built in voltage monitor. I didn't want to be stranded in an awkward location with a dead battery. Only drive off if the alternator is actually charging the battery. For info, this issue was more likely from a cold start in the mornings.
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Current: F30 335d xDrive, E91 LCI 330d
Previous: Honda Civic 2.2 cdti, E90 330d, E46 330d Saloon, E36 328i Sport Coupe, E36 325iS Coupe, E36 318iS Coupe, Escort xR3i, Renault 5 |
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