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      01-07-2020, 10:01 AM   #23
MrSweet1991
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Drives: BMW E90 330D M Sport
Join Date: Apr 2017
Location: West Midlands

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Quote:
Originally Posted by pubo View Post
Cheers for that. Good to hear you have yours sorted. Weird thing is once its booted up as 14+volts, it'll stay fine for the whole trip. Been checking the PTCan signals and it looks clean regardless of the state of the alternator.

Guess I'd just have to bite the bullet and replace the whole thing. Bright side is I'll have a spare alternator to tinker around with.
Same mate, here's a video of mine running on just the battery around 12+v and then I pull over and turn the car over and then it goes back upto 14v

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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