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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 06-16-2012, 07:24 PM   #1
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Replace your voltage regulator on a PM basis (picture inside)

Pictures tell the story. Old on left, new on right. No failure, signs, or symptoms. Just good old preventative maintenance.

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Old 06-16-2012, 07:33 PM   #2
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Thread would be complete if you included the part number and a link to a DIY
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Old 06-16-2012, 07:48 PM   #3
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Old 06-16-2012, 08:01 PM   #4
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2004 up coupes have different style plugs for the vr, if you search for those for 04 up coupes they are like over $100. there's one i found on rmeuropean thats like $37 its for a 2004 clk500, they look the same but not sure if they work on it or not. when mine broke i got a reman alternator for like $200. but i didn't know there's one that's $37. i would have tried it.
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Old 06-16-2012, 08:08 PM   #5
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Thanks, Jake. was $37 from bmaparts.com. you have to call and ask for it though. its not listed.

You can install it by just removing the airbox, aux fan, but I didn't feel like playing guessing games in back of the alternator and just pulled the whole alternator. you'll want to pull it anyway to make sure you get a good grasp on the philips head screws. they're extremely soft. Make sure you use a fat tip philips screwdriver to get adequate grip on the screws. I first tried a somewhat smaller philips driver and the grip wasnt good and the screws started to strip. I didn't go too far before realizing i needed a bigger driver. Everything went well. You'll also want to make sure theres no debris, leaves, etc behind the cover. Mine was clean.

Removing the alternator also allows you to inspect your belts, tensioners, and whatever else is lurking down there.
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Old 06-16-2012, 10:08 PM   #6
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Won't work for those of us with the Valeo alternators

Those VRs are pretty much unserviceable unless you have a small torch.
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Old 06-16-2012, 10:17 PM   #7
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Ya i know you Valeo guys have expensive options... sorry =/
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Old 06-16-2012, 10:54 PM   #8
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E46mango= Cooling officer+preventive maintenance officer!
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Old 06-16-2012, 11:08 PM   #9
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Hahaha! Gotta keep some of these boys here in line!

Now, if you'll excuse me, I smell some cornbread cooking in the barnyard. Must investigate.
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Old 06-16-2012, 11:15 PM   #10
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Hahaha! Gotta keep some of these boys here in line!

Now, if you'll excuse me, I smell some cornbread cooking in the barnyard. Must investigate.
Haha! Well obeying the Mango laws ensures the safety for myself, my wallet, my faint heart, & my diamond 3.0 engine.

Corn bread!! Jealous... All I smell is home-made Pho boiling in the cabin.
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Old 06-16-2012, 11:18 PM   #11
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hahaha home made pho is good. well i used the can stuff so its not THAT home made. i just take a trip to reseda blvd when i want pho haha.

and the cornbread and barnyard thing is kind of a running joke of mine here.. not actually making cornbread. just so you know hahah
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Old 06-16-2012, 11:28 PM   #12
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hahaha home made pho is good. well i used the can stuff so its not THAT home made. i just take a trip to reseda blvd when i want pho haha.

and the cornbread and barnyard thing is kind of a running joke of mine here.. not actually making cornbread. just so you know hahah
Reseda & Sherman way?!

Dude... Fack... Hahahah, I actually started craving cornbread!
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Old 06-16-2012, 11:29 PM   #13
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I think it's called Pho So 1. Next to Bangluk. Yeah cornbread is good.
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Old 06-16-2012, 11:30 PM   #14
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There's always a bowl at mi casa for you, if you're ever craving it!
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Old 06-16-2012, 11:31 PM   #15
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Heck yeah! Thanks man.. lol i love pho. A pain to make though.. this is turning into the Pho thread
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Old 06-16-2012, 11:32 PM   #16
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I think it's called Pho So 1. Next to Bangluk. Yeah cornbread is good.
The best Pho spot in the valley, I must say. There's a good seafood restaurant in that little area as well (A&W)
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Old 06-16-2012, 11:34 PM   #17
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The best Pho spot in the valley, I must say. There's a good seafood restaurant in that little area as well (A&W)
Yep yep been to A&W as well
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Old 06-16-2012, 11:35 PM   #18
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Heck yeah! Thanks man.. lol i love pho. A pain to make though.. this is turning into the Pho thread
No problem man! It soothes the soul.

Hahah I know!

Replace your voltage regulators & eat some Pho...

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Old 06-16-2012, 11:36 PM   #19
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Yep yep been to A&W as well
& to end it, once my mystery tick goes away, we will celebrate with a nice long drive through Sherman Way for some grub!
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Old 06-17-2012, 09:57 PM   #20
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Pictures tell the story. Old on left, new on right. No failure, signs, or symptoms. Just good old preventative maintenance.

Preventive. Too many syllablables.
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