BMW N52/N51 Alternator & Serpentine Belt Replacement DIY - (X3, 325i, 325xi, 330i, 330xi, 525i)
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- Опубліковано 12 кві 2020
- ►Is your car having trouble starting? Is your battery light on the dash? Are your interior lights dimming or weak? Is your car just not as responsive as it was before? If you answered "yes" to any of these questions, then you may have a faulty alternator that needs replacing.
Our Catalog Director, Mike Rivera, walks us through replacing the alternator, serpentine belt, and even the tensioner (that one was a self-inflicted repair, oops) on a BMW N52 engine. Our particular DIY featured in the video is done on an X3, but this repair is applicable for all N52/N51-equipped BMW's.
Read this DIY on our blog: blog.fcpeuro.com/how-to-repla...
Buy This Kit Here: bit.ly/3a4Q1l1
Replacement Battery : www.fcpeuro.com/products/auto...
The entire list of applicable vehicles is below:
BMW 330i
2006 BMW 330i Alternator Kit
BMW 325i
2006 BMW 325i Alternator Kit
BMW 530i
2006 BMW 530i Alternator Kit
2007 BMW 530i Alternator Kit
BMW 525i
2006 BMW 525i Alternator Kit
2007 BMW 525i Alternator Kit
BMW 530xi
2006 BMW 530xi Alternator Kit
2007 BMW 530xi Alternator Kit
BMW 525xi
2006 BMW 525xi Alternator Kit
2007 BMW 525xi Alternator Kit
BMW 325xi
2006 BMW 325xi Alternator Kit
BMW 330xi
2006 BMW 330xi Alternator Kit
BMW 528i
2008 BMW 528i Alternator Kit
From 9/2008, w/ heated driver/passenger seats (S494A) or w/ Hot Climate Version (S823A)
2009 BMW 528i Alternator Kit
w/ heated driver/passenger seats (S494A) or w/ Hot Climate Version (S823A)
2010 BMW 528i Alternator Kit
w/ heated driver/passenger seats (S494A) or w/ Hot Climate Version (S823A)
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I like the fact you leave in errors made during the fit, and not edit them out. Bravo 🙌🙌🙌
Great video. Thank you for doing it and being so thorough.
Great video. Thanks. I know it’s a pain for you but I love it when mistakes happen cause it shows how you fix those mistakes and it also shows how we are all human.
Very true! It happens quite often.
excellent video! Thank you so much! my request for the next video is to replacing engine oil gasket under the car. I need to replace mine to stop leaking. Thank you.
Yep, oil pan gasket how-to would be great. It might end up being a two-part video, though. It's a bigger job than the average pan gasket.
Thanks 🙏 for ur clips
Another great video. FYI the grommet at the bottom of the air box tends to come loose and can fall below. I solve that by gluing the grommet to the frame with gorilla glue before reassembly.
Thank you so much sir well explained
Big thanks to FCP Euro for the helpful video! Just in time to replace my alternator. I'm excited for the next upcoming series on the N52! When are you releasing another video?
Glad the timing worked out Lu JR! Keep your eyes peeled as we will continually have N52 content trickling out over the coming months. Appreciate your support!
Did you need to code anything or use a scanner after installed?
Very accurate display of how we run into problems while working on our old BMWs lol
Wait it's not that old :(
before replacing the alternator, check the positive lead bolt on the starter. the alternator wire is making a junction at the starter, and if that bolt is loose you'll have all kinds of issues that seem to be alternator related, that may go away temporarily when you replace the alternator due to the wires moving about, but come back after a while... had this problem on multiple BMWs, including e46 and e92.
Great tip, Alec! Thanks!
Thank you very much
Good job you make look so easy
Thanks
When I torqued down the alternator new bolts, I did 10Nm plus 90° only. Because I really worried 180° would strip the thread or snap the bolt.
Hi- I have an 2009 335i (N54) that I’m going to replace the tensioner and idler pulley on. Can you let me know the correct torque specs for both items?
Are the torque down specs for the four bolts on the alternator into the block the same for the N55 and an alternator replacement? Assuming BMW would do the same? I can't find these specs anywhere.
Would mind making video how to register new battery ? How important is that to be registered ? If we failed to do so how long new battery typically last ? Is it getting charged at all ?
Thanks for great contents.
Thanks for the note, we're planning on addressing this in a coming video about electrical diagnosis!
I'm on the fcp euro website, how do I know which Amp is correct for mine? I have a 2006 330i n52b30af
T60 or anything T socket is difficult to use when it comes to releasing the tension, as it can slip, as it happened to me a few times. To me, it’s a two person job. Always needed another person to slip or remove the belt while I release the tension, ensuring the T socket doesn’t slip.
It was selfish of our video team to sit there and watch him suffer... a second set of hands would for sure have been easier! You're right though it can be really hard to trust a T-Anything when releasing tension OR breaking a bolt free. It can really feel like a gamble!
Another video sir for A/C compressor replacement
This guy is butterfingers frfr ayo, fcpeuro?? How long did this guy last?
For my car, if you simply removed the alternator bolts the belt tension is reduced without any "violence" from the tension in the belt. My tensioner had its ear broken off so that you can't use the T60.
Jeez Jim thats a beefy bit of metal to just snap off, how'd that happen ^.^ you can wiggle it out for sure but when reinstalling or replacing the belt having slack in the belt instead of it under hard tension makes reinstall a bunch easier. But hey if there's a will there's a way!
@@fcpeuro Yeah. to get it back on i bought a new tensioner from you guys. If the T60 is allowed to get misaligned it puts a bending load on that ear and it cracks. Thanks for all the video's. I did the oil filter housing gasket and the coolant pump and thermostat with the help of your vids. Thanks again and keep it up!
@@jimcavanaugh6074 we appreciate the support, and we are glad we've been able to help along the way when possible!
where do you get torque specs?
can you guys do N52 or a N51 fuel pump
We can add that to the list, Matthew!
E 12 for Alternator Bolt people ...
Do you recommend blue thread locker on the bolts?
It's probably not necessary for the alternator bolts, but blue thread locker is perfectly fine to use.
Where can I get the hoodie that you’re wearing?
Unfortunately it's our old (last year's) race gear, but you can shop all FCP Euro merch here. We're planning on offering our current race apparel later this year. www.fcpeuro.com/products?keywords=merch
Is that why it takes between 1 and 2 hours ?
1/2 a hour is
about right .
Is it necessary too replace the alternator bolts?
Yes. They are torque to yield.
E14?
" C'est la vie! "
So this kit does not fit the later n52n engines?
What is your year and model?
@@fcpeuro 2008 328i sedan, n52n
Why did BMW put a liquid reservoir over the alternator? That's poor design.
Don't forget to tell people that you have to register the new battery, so that spiffy new alternator doesn't fry it, thinking it's a 5 year old battery!
Okay
Every time I replace the belt in my 2007 X3 I always remove the fan. It’s 40 seconds well spent.
how often do you replace it?
10/10 would recommend removing in the first place 😁
I guess every time means twice. Replaced the belt when I bought the X3 at 80k miles, and replaced again at around 150k miles. I also removed the fan when I replaced some coolant hoses.
@@EMc71 thanks for the insight, take care mate
So what ever happened to the screwdriver?
It was never seen again 😱.... Mike was able to fish his hand down in the crevice and get it out lol at the time it looked it was gone for good!
Belt orientation looks upside down.
Why is my car idling weird
Nice video but I dont know if I would want you to work on my car...😂 I'll be finding tools and pieces of things in all sort of crevices.
HAHA soooo we shouldn't send Mike over this weekend to do your alternator!? Fair enough 😂We wonder where all the missing tools in shop go, if only we could check every crevice of Mikes X3...
After seeing this video, I was thinking the same thing. The tech apparently knows what he is doing but seems to be sloppy doing it.
That ashtray of nuts and bolts on top of the engine gives me anxiety.
Navisworker I think it is magnetic. Both holding itself and bolts.
Still makes me a bit angsty as well though :)
@@Mister-Christer and @Navisworker 😂 It is indeed magnetic, and better than the bolts falling into the black hole death cowel like the screwdriver lol. Sorry for ensuing anxiety throughout though, wasn't the intent!
Have you had many issues with manufactured alternators? Im on my third and still having issues These are the worst parts ever!
FCP needs to find well qualified technicians for these tutorial videos. This tech did a horrible job of stripping the threads on the tensioner and he forgot to reinsert the battery-breather when he installed the new battery. Inattentive to procedures. I'm just curious if he missed some details crucial to the repair?
A more human diy video for once lol. Get tired of watching diy videos where they don't run into common issues or drop tools. This feels great. 2hr job turns to 3 because you lost your tools kinda diy lol.
Absolutely, Stinky10R, we are only human and like to show it how it actually goes!
😂😂
That trey of screws just sitting on the engine like that makes me nervous.
Haha such an amatuer
Alternator watch battery removal - You were turning the TORX the wrong way that's why it's junk now- Make a drawing of the belt path he did not mention that. ALWAYS replace the belt while your in there - CHEAP - I had to GO THE END to find out the TORX socket for the 4 Alternator bolts...You should stick with raking the grass.. !!!!! E12 @ 10:58 Seconds dik