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BMW E46 Alternator Replacement

377 ratings | 35124 views
My mailing address for correspondence or swag of any kind is on my about page! This video is for entertainment purposes only. 50sKid assumes no liability for any repairs or modifications performed by the viewer as a result of the information contained in this video.
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Text Comments (58)
kevin maxwell (3 days ago)
thank you
ethan morlan (18 days ago)
HELP!! Just replaced alternator on 2003 325i. Battery is only putting out about 8.4 volts, I jumped the vehicle and car started, but I quickly noticed that it was going super fast and then started smoking 0-0?!? I turned it off and the alternator was SUPER hot and without cables hooked up to it the battery still only puts out 8-ish volts and won’t start the car....
Marshall Bradley (1 month ago)
First time on my bmw 330ci this helped a lot ! Thanks for the detail but not rambling about unnecessary stuff. Great video saved me a bunch of headache money and time...thanks
Vic Orlando (2 months ago)
No coding? Or what the codes were?
Zero Hour (4 months ago)
Can you replace the regulator without removing the alternator? Thats wait fails, is just the Voltage Regulator unless your bearings are bad.
50sKid (4 months ago)
yes
Abbottcost (5 months ago)
On my 2003 330 Ci the cooling fan is electric & mounted to the shroud, only necessary to disconnect 2 electrical plugs & remove shroud with fan attached just like in the video except the fan (w/electric motor) is attached to it. So check yours BEFORE you buy the POSSIBLY unnecessary special tools!!! Nice thorough video!
Jennifer Lillie (6 months ago)
while replacing my alternator the boat that you tapped on snapped the alternator where that bolt holds now I'm getting low voltage could this be because I put the alternator back in but it is sitting crooked please respond ASAP before I go spend 200 + on an alternator
Vic Orlando (2 months ago)
Lol no response that sux. Yes, has to be mounted right
ray garcia (6 months ago)
Man I jus got me an 02 with an I found you Chanel an with your videos I will be able to fix anything that may come up👍
Real One (21 days ago)
ray garcia did you need the fan tools? I’m about to go work on my 02 in like an hour and I’ve heard I won’t need them
Spaced Kowboy (7 months ago)
Awesome! Just replaced the alternator on my 2005 E46. This made it so easy! My tensioner pulley was different than yours so thank you for mentioning how to understand mine. Did the whole job in about an hour...not bad for my first alternator job! Love your channel!
Andrew Harvey (7 months ago)
what amp is a bmw e46 alternator just been to price a new one shop want to know if it 90 amp or 120 amp how do i know thanks REPLY
Jennifer Lillie (7 months ago)
I replace the oil filter housing gasket on my E46 shortly thereafter my abs trifecta came on could this be due to a bad alternator only ask because someone else said ABS problems could be because of low voltage either and battery or alternator
50sKid (7 months ago)
you need to use a bmw scan tool to find out what the errors are. No sense in guessing.
Dany Aly Brownrice78 (8 months ago)
Super easy job after watching ur video..couple notes for the next guy: 1.Order the right alternator. There's a sticker on the back of the alternator, if u can see it, u can always try peeling it. I think most are 120amp Bosch units. 2. Get the alternator with the right connection. Oval or square and also 2 or 3 pins. 3. Amazon prime has Bosch reman for $230 plus $75 back for core so $155. Great deal.
Armando Arriaga (8 months ago)
So did you need to put the insert back on the replacement alternator ?
Giggidygiggidy12 (8 months ago)
You don't need to remove the fan clutch or shroud to replace the alternator, assuming you are keeping the same belts on
Stephen Calderon (8 months ago)
mann, Im having trouble getting my screw in the new insert on my new alternator.
50sKid (8 months ago)
Take the alternator out and investigate -- perhaps the screw threads are damaged
FishFind3000 (9 months ago)
Fixed mine, that collar on the end of the alternator that you popped out on accident would not move on mine. Must be nice working in Cali cars... try your hand at a Chicago rust bucket. Ever bolt and the fan took a shit ton of force. Plus that collar wouldn’t move! Pb blaster tho is amazing and saved the day for me. After 2 hours trying to get that collar off it finally went with pb blaster and it went so much faster after that. Even noticed my accessory belt was bad and totally cracked, should have mentioned in the video to check if it’s good or not since it’s right there and 5 seconds you can change it. Anyway thank you for your video it was extremely helpful. With some finagling I got it done.
50sKid (9 months ago)
Doh to all of that
Brandon Matz (9 months ago)
Looks too easy thnx 50skid...
Travis Tripp (10 months ago)
You don't need to take the fan off
Larson Home Inspection (5 months ago)
Its almost impossible to do it without the fan out
MrStevoduct (10 months ago)
50sKid when I got inside mine, the little cable in the back was disconnected, not the one that you showed taking off but the wire one(similar to the mass air flow sensor) would this cause my alternator problems... What does that clip thing do? Thanks so much
50sKid (10 months ago)
he's saying you can just work around it--I guess for people who don't want to buy the fan removal tools
MrStevoduct (10 months ago)
Travis Tripp how do I do it, if I don't take the fan off
Bill Muse (10 months ago)
Great video. Thank you.
Samey Ahmed (10 months ago)
Does the alternator with 90 amp work with e46 328i ???
juha (11 months ago)
Great vid, thx!
$25!? I need to find a good junkyard around NYC
Ride1098 (1 year ago)
Thanks bro, you made my alternator job a lot easier.
vviiper (1 year ago)
When you mention the hydraulic and mechanical tensioner. Mine is a 2001 320i, and you have to remove the cover on the pulley and use a torx bit to remove tension from the belt. I'm pretty sure mine is mechanical and not hydraulic. Could I be wrong? Are mine hydraulic? :S
MrStevoduct (10 months ago)
Mine is 2005, is it for sure the t55?
vviiper (1 year ago)
Wow you're right. Put VIN into realOEM and they are indeed hydraulic. I thought hydraulics were used way later on like 2004+ or something. Weird
50sKid (1 year ago)
yours is hydraulic
billy mitchell (1 year ago)
now you can do a video on alternator o/haul ...how to replace bearings and how to check the clip clutch ..starpoints windings for damage ..brushes and slipring redressing
billy mitchell (1 year ago)
hey a tip 4 ya..when replacing alternator brgs we use to flick the bearing seal from both sides but do not damage them and replace the grease and repack the bearing with a product called NULON Xtreme Performance grease which is a PTFE based grease (teflon)..bearings will never wear because the surfaces get coated with teflon also good for inner tierods too
billy mitchell (1 year ago)
have a look at this guys video's he repairs alternators( WestronicsIrl) but I don't like the way he removes the bearings off the shaft..I prefer using a electric welder to heat inner race of bearing and they just falloff with no damage
50sKid (1 year ago)
Yeah I think I will have to... the "new" used alternator is making noise too!
billy mitchell (1 year ago)
getting an alternator for $25 why would anyone repair them..I had to make up brushes for mine and replace a diode .. but buying a brush set from BMW i needed to take out a loan ..tip for removing the fan without the special tools ...32mm spanner on the fan clutch nut and give the spanner a hit on top so it shocks down on the nut and off it comes.. is that easy
Miles West (1 year ago)
Hey 50sKid I love the videos and find them very helpful and I was wondering if you could make a video explaining how to replace the crankshaft position sensor (reading: P0335) on a 1998 BMW 528i.
Chris Canty (1 year ago)
I have a friend thinking about selling a BMW 325 ix for 500.00 149,000 miles want go into gear will a bad cv axle cause this ?
50sKid (1 year ago)
No, bad transmission.
Sam Rizvi (1 year ago)
My truck 2004 BMW X5 4.4l M62TU engine can you please let me know location of oil pressure sending unit need to change it with new one because light is flickering on idling only. May be a short video will help me. Thanks.
speedracer76 (1 year ago)
Thank you for this and all the videos you have done on BMW's. Between you and ShopLifeTV I have become very comfortable working on these cars in a short period of time. I how have a great running E46 and just picked up an E53 to fix up. You and ShopLifeTV should do a collaborate video now that he has moved so close to you.
Walter Guevara (1 year ago)
I think you could actually buy just the pulley for the alternator if you don't wanna buy the whole unit
50sKid (1 year ago)
It was the bearings that were bad.
NutNbutSpeed (1 year ago)
Mine was doing the same thing and I replaced it. Man finding then right one was a biotch because there's many different versions of the alternator. Also, I highly recommend you buy it at FCPEuro because then you have lifetime warranty and trust me, it'll go out sooner or later and that lifetime warranty comes in handy! 50skid- why don't you convert it to an electrical fan? It's so much easier to work on and you won't need any extra tools. I did the conversion like 3 or 4 yrs ago and holy cow what a difference it makes working on the engine!
MAN UTD (1 year ago)
NutNbutSpeed I have 2002 330ci how can I find electrical fan for my car?
andrei put (1 year ago)
hello 50's kid. yes i agree, electric fan conversion would be a useful upgrade.
Shakeel Rehman (1 year ago)
Hey 50skid - love your channel! - do you have a video on swapping out a brake caliper please?
Andreas Heine (1 year ago)
top
Tom Klar (1 year ago)
Do you always get your fan threaded back on so easily or is it some crafty editing? It usually takes me at least ten minutes and a sore back the next day
50sKid (1 year ago)
Clever editing. Sometimes I find it really difficult and sometimes it goes right on.
ElAhmadGaming (1 year ago)
you can use a thin fishing line or any thin wire but just angle it and spin it on the threads very simple
Moe Greene (1 year ago)
Tom Klar mine's off and on in 5 minutes

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