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      11-02-2017, 12:19 PM   #15
RedCardinal
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Drives: 2013 M3 e93
Join Date: Oct 2012
Location: windy roads, hopefully

iTrader: (0)

I'm driving a 2013 e93 M3 and have had all sorts of warnings flashing over the last several months. I replaced the battery and the warnings keep coming, now with even more weirdness. I think there's a voltage issue, and am going to replace the alternator.

I've previously replaced spark plugs and an ignition coil on an e46 m3, removed the throttle limiter, that kind of thing.

Anybody done an alternator replacement who can point me towards tricky things to look out for? I understand there's a number of clips invovled that could snap - is that pretty much it?

So it seems to me it's disconnect neg battery terminal in trunk; remove air filter cover; remove radiator fan; unplug alternator and remove it.

Seems from what I've read that the clips under the fan are a pia (I do not plan on removing the splash guard). Is the fan tricky to get out?

also the alternator itself sounds like it can be tricky to remove.

I'm concerned I'll get to the middle of this and not be able to finish it - this is my one and only car....

I've ordered a new alternator and an aluminum bolt replacement kit for the bolts, I read they should be replaced when performing this change.

Thanks.
Appreciate 0