Car stranded at 3:30pm after my serpentine belt disintegrated, after some walking and stops at 2 parts stores, up and running by 7:00pm thanks to this video. Much appreciated!

TY you and the 50sKid are awesome teachers with understanding camera skills necessary to simplify the task at hand.

It's amazing how many people on KZfaq messed this DIY up with poor camera angles and lighting, spending way too much time talking uneccessarily and cutting out the re-installation. Yours however was nice and clear, especially appreciate seeing both the hydraulic and spring tensioners off the car so I can see the bolt locations and sizes if I need to remove them (I don't know which one I have yet). Thanks.

I'm glad I found this video, I too have to do this same repair this weekend! this will help me a great deal. Thanks, Han for posting this. #lifesaver

Thank you for the clear explanation of what you were doing in the beginning of the video, that really helped me understand where those bolts were. Great video!

Just replaced the serpentine belt on my 325i. Quick and easy job thanks to your very helpful video. Thanks.

Superb video and audio. And presentation of factual details was also professional. Very helpful DIY piece, thanks.

This is a fantastic tutorial. Thank you, Han.

Great job, brother! Really appreciate the knowledge. Subbed immediately. Thanks very much! 👍

Excellent video man! My Serpentine belt broke last night on my way home from work & instead of panicking, I turned to KZfaq & found your video! I am going to replace the belt myself today thanks to your instructional video! I will be checking my pulleys too! Thank you for such a clear instructional video!!!

What a Great Video! Congratulations and keep up the good work.

This is a great instruction video. Thank You.

Excellent demonstration, thanks a lot mate.

best video ive seen for this job.. thanks so much.

Hi Han, I just finished up fixing the X5 last night. Turns out the water pump went bad, froze up, and that is what threw the belts off. cracked the pulley as well. I put on a new pulley, tension pulleys, belts, fan clutch, and water pump. Runs like a champ now. Again thanks for the video. gave me all the confidence I needed to get the job done. Saved a ton of money doing it myself as well. Take care, and keep the videos coming.

Thank you! This really helped me today!

MEGA t HAN ks 4 a fantastic DIY video!!!

Hi Han, love your great videos. Hope you can also make output/selector shaft seal video in the future.

Great video! Thanks for sharing..

Thanks! I saved money and learned something!

Thank u bro!!!! Very useful vid!!!!👏🏻

OHHH MYYY HAN.. PERFECT TIMING. YOUR AWSOME🤙🌺🌴🍍💯ALL THAT JUST HAPPENED..🙏🙏🙏

You the man Han!

Wow, I literally just dropped the car off to the shop to get this done cus it was making a noise. You have the best video online on to how to change it. Every other person had some weird camera angle, and you were clear with how to change the stuff. I kinda regret dropping it off. I wanted to try to change this myself since I want to learn to do maintenance work in my 330ci bummmer.

Nice job done!

You the man best video on you tube

Great video!!!

Thanks for badass video

WARNING ⚠ Before you remove the upper pulley. Look behind the pulley where it mates up to the alternator. The backside of the pulley and the front side of the alternator have a special way of fitting together. You can't mess this up...if you do the pulley will not line up perfectly. Other than that great video

Gracias.. por tu ayuda....

Thanks you perfect

Great video!!! Is the pulley removal process of the a/c tensioner the same method, where you take off the cover and unscrew the bolt?

Thank you for this video.

Very informative video, the problem is how could you pull out the shroud when there is propeller that is on the way, mine is a 325ci 2003 convertible automatic. On your video it seems the propeller is attach to the shroud, it is one piece only.

Thanks so much.

Good man.

Thanks!

I think the upper pulley has a notch on the back that was not shown that needs to fall into place before you tighten the bolt when reinstalling? By the way, great video.

Hans, so how do you adjust the hydraulic tensioner? Thanks!

So are the tensioner universal bmw do claim there parts are compatible with each over but ebay sellers say a 2001 IDLER pulley wont fit anthing with a hydraulic tensioner i give up by parts and pray

Is it necessary to replace the tensioner I was thi king I should just replace the belts since they are cracking.. do the tensioner go bad often?

Do all fans already come unbolted or just yours as you didn't seem to undo the fan yet it slid straight out also slid straight in and didn't do it up or just forgot to show that.. Grate video though helped me out big time thanks

I hear some noise around the belts and pulleys. But not sure what's causing it. If I remove the fan and shroud, I can see better. Even better if I can hear it. So, can I start the engine, with the fan and shroud removed? Thanks Hans.

Does a bad upper pulley cause belts to rip? Because I have a fairly new belt and it ripped today and I think it may have been a bad Pulley

Nice video brader next new video uploding

is it ok to just change the pulley on the tensioner instead of the entire mechanical tensioner?

My car was 2002 build e46 but today I find down the engine do not have the airp pump or vacuum pump is that normal?

my e36 doesn't have upper pulley. should I put one

you said you where going to change the old hudraulic tensioner with newer mechanik tensioner,,but when i watch i see you changing the hydraulic to another hydraulic tensioner..

i have an '02 325CI, my fan is attached to the pulley...not so easy as this....

Why did you change the tensioner? Was there a problem with it or is it just good practice? I know you mentioned the pulley was noisy. Thanks

Are the M56 pulleys and belts the same as the M54 325i

Does it matter where the upper pulley is centered?

At 10:33 you replaced the tensioner with the old style (instead of the new one without the hydraulic). Why didn't you replace it like you mentioned at the beginning of the video?

i recently has mine replaced before i saw this vid...£240 !

Hi what is the smaller belt for exactly?? I have a 320d and the small belt is not on mine , would that cause problems?

You forgot a major necessity: REMOVE FAN BLADE before you can remove fan shroud!! At least on my 2000 323ci E46 you have to.

Hey bro I have the first tensioner and big bolt on the left snapped on me. What should I do

please what is the belt number for the long belt

If the pulleys are bad,would that make my fan wobble in an e46 m54?

Nice Video Hans but, why didn't you replace the hydraulic tensioner with the new mechanical one that you had? You put the old hydraulic tensioner back in.

come on han I can't remove the last pulley at the bottom on the right please do you have any advice I know

Why didn't you install the new tensioner?

And why u dont change the dumper too?

You put the same tensioner back on lol?

have e46 320d 100kw y.99 and this video is for other e46 not for y.99 but later

Ciao dove trovo schema per m57 er91?330 d 184

Are we just gonna ignore the fact that you put the hydraulic tensioner back on? I cannot for the lifeof me find a video of someone that has a mechanical tensioner and what bolt it uses. I've called like 6 shops and plenty of stores and can't get a good answer.

Is this the same for the e46 m3?

Just taught Why didn’t you just press out bearing it would costed you in total of $15 max With out belt I don’t get it people just keep buying new parts with out looking into how to fix one they already have More than likely you need it 6203RS bearing

Dude what were you smoking...you replaced the old pulley with the old pulley

I DIDNT SEE YOU TAKE THE BIG LUG NUT THAT HOLDS THE FAN TIGHT . WTF !!? Why do a video and not Show the hardest part

Waiting to see how to replace the serpentine tensioner belt and this guy just decided not change that one so silly 👎👎👎