VW golf Haldex Diff rebuild - Noisy Bearings

[@madspetersen7463]

I learned a lot from your video👍 Ended up taking the diff off my self and took it apart. The smaller bearing on the right side was completely worn out. The bigger bearing on the left side was still in good shape, but replaced both bearings. That’s was the easy part. My problems started when assembling, and I ended up taken it to a mechanic. Shims were too big, and when we tried to fit the housing, it was almost impossible to rotate the shaft. New shims are almost impossible to find. The mechanic took the shims to a specialist, and he took off 0,2mm, on the right side shim. The diff has been running for a year now, and everything is good. Thanks for an informative thread and video. Greetings from Denmark 🇩🇰

[@PTPrecisionAutomotive]

Well done mate, Your Mechanic did you a massive favor and is a champion , get him a case of beer.

[@tjteknik1]

Where did you get the spare parts? I think that I may have a problem soon on my Skoda 4x4 with a slight noise appearing. Can't afford to buy a new diff so repair is the only option.

[@jonasjensen6792]

Hej Mads Jeg står og skal til at igang med samme tur som dig... Jeg har lige et par spørgsmål måske du kunne hjælpe med at svare på? 😅

[@davidskinner6765]

Great work. Vw wouldnt touch that because it couldn't be repaired by spinning on a filter. What you guys do is true mechanics. Brilliant, keep it up. Your apprentices are very lucky to work with you guys👍👍

[@PTPrecisionAutomotive]

I'm lucky to have such good a good team

[@marzzgli1278]

AWESOME!! I just purchased a used 2017 Alltrack and was on the VWVortex site and discovered a bunch of people with this issue, I’m experiencing the soft grinding sound that gets louder when I decelerate on my passenger side (U.S model). I’m scheduled to visit my local VW dealership on Monday as the car is a CPO. I know their gonna try to give me the run around (breaks, rotors, diff fluid change etc…) I’m gonna show them this video now 👍

[@PTPrecisionAutomotive]

Hahaha. im not sure, [actually i know] they wont repair the diff. as i have done as it is an Serviceable unit , By VW.

[@ssccscot]

Noice fix. The dealers only want to replace today as they make more money and don't have to warranty the work if the part fails. Good to see a real mechanic figure it out, offer the customer a better cheaper fix.

[@bigfella6629]

Nice win on that carrier bearing, saved a ton of money.

[@PTPrecisionAutomotive]

yep sure did

[@shauntukuafu924]

I enjoyed the run through. I Hope your hands healed up quickly after surgery without complication. 🙏

[@ericp5960]

Hello, thanks really for this video, I have to do the same on haldex 5 for octavia scout , but I don't find any video to remove the haldex from the car (there are 2 bolts with access by the top so it seems mandatory to remove rear axle? And for the rebuild after changes of bearings is there any setting/measure to do ? thanks a lot for your help

[@vjlau02]

Hi, you are correct, either you remove the rear axle, or you can drill 2 holes inside the truck and you get access to the 2 screw you mentioned. Done the same operation some 2y ago. Hope this information helps. Just google, haldex removal, holes inside trunk etc.

[@onemilionmiles1729]

Do you know the size of the bearings?

[@TTPDrums]

I have a 2022 Skoda Octavia 2.0 diesel manual. It’s been with Skoda awaiting a faulty gearbox differential for 5 months now for a warranty repair. Apparently the part isn’t available and Skoda asked the dealer to strip the gearbox to identify the part! The gearbox is in bits and they’re still waiting for a replacement part. Good news is they’ve had to supply me a courtesy car, so I’m driving around in a 2024 Skoda superb!! What a daft company.

[@davidbean4505]

2017 Golf Alltrack wagon -- same thing. Thanks for the super video -- it helped me decide to let my local mechanic swap out the diff instead of doing it myself.

[@PTPrecisionAutomotive]

Hahahah, They can be difficult.

[@Brodizzzle]

What we’re your symptoms?

[@compr3ssion]

What's the backlash? .10?

[@SGO113]

I got a 2015 Audi S3 and has a noise like you made. I changed my wheel bearings and rotors only to find out it's a bearing on the diff. So far, I've had no luck finding anyone that rebuilds these rear diffs. All shops say they need to replace the whole carrier assembly. I have not seen any schematics to find the bearing part number

[@PTPrecisionAutomotive]

The number are in these comments below , but they may not all be the same. Full dismantal then to see if you can find them. [i spent a long time finding them] and couldn't get one seal.

[@johnclarke6542]

Rubbish after service from VW if they don't sell spares, good job your there to help 👍

[@PTPrecisionAutomotive]

No they don't [complete unit $7000AUD]

[@sp19822]

You would think they would offer a rebuild kit with all the bearings and bits required, rather than force someone to spend $7000 on a complete new unit. Great work saving that diff, and a lot of cash as well.

[@compr3ssion]

What is the part number of the differential you swapped the bearings on? I have a 2017 alltrack with the same problem and no one rebuilds them.

[@davidfairhurst2654]

Hi, I have a Audi A3 Quattro and have rumbling noise issues from rear of the car, been told it the Haldex unit, but not so sure because I’ve take the 4wd drive fuse out and the noise is still their, does this mean it could be a wheel bearing instead, as the Haldex isn’t working after fuse is removed surely ?

[@PTPrecisionAutomotive]

Have it diagnosed correctly

[@Валентин-е4й]

Hello! great work. Could you tell the number of ball bearing in haldex? Thank you a lot for video.

[@PTPrecisionAutomotive]

it's in the comments below

[@Unusual-User]

Wieviel Nm braucht die Mutter vom Pignon?

[@irr834]

Hola reparan piezas si se la enviamos?

[@compr3ssion]

With regard to backlash: I'm in the middle of rebuilding one of these and I fail to see how you were able to check and adjust the backlash. There are no keeper bolts or backlash adjustment bolts on this differential. There are only washer spacers behind the carrier bearing races. Even though you mentioned that you checked backlash, I'm not seeing any way to check it since the housing is essentially what clamps the diff in the unit. It can't be accessed after you put the housing back together.

[@PTPrecisionAutomotive]

Flexigauge.

[@adambednarz7508]

Great video! In my car also (golf alltrack 2017), the noise increases when decelerating. Initially I thought they were tires or wheel bearings, but after replacing the noise still remained ;/ Do you think that the cause of noise in my car may be the same as in your car? Thanks for any tip!

[@PTPrecisionAutomotive]

you need to diagnose correctly. run car on hoist with stethoscope

[@elvedinmusija6692]

Hey did you solve it 😀

[@konvesna]

Hello. are any additional special tools needed? is it necessary to adjust the tooth clearance when replacing the bearings? what should be the play between the teeth? I can cover up. or maybe the way with a piece of paper is enough? I have a problem because it hums from 60km / h and there is a radial play on the left joint that goes into diff. (on the bearing in the middle) will the replacement of the bearings help? . I have a lot of background and skills, but I'm a bit afraid 😁

[@bojidardimitrov7263]

Top man 0.3mm machining on distance washers works perfectly, thanks for sharing your experience, priceless!

[@PTPrecisionAutomotive]

All good mate.

[@500gram5]

Im rebuilding mine also but i think i have to scrape of more… like 0.7 or something

[@RobsDIY]

What was the symptoms? My r36 rear differential started to whine

[@PTPrecisionAutomotive]

yep that may be it

[@rocketkn]

Hello sir, I have exactly the same noise on my golf 5 r32. Are specific tools needed to adjust the bearings before reassembly? THANKS

[@PTPrecisionAutomotive]

No, just years of experience

[@rocketkn]

Thank you !

[@januderman1255]

Hey. I have a 2016 alltrack with probably the same issues. Just wondering: it possible to unmountthe rear diff and just drive the car as a 2wd (fwd only)? Regards

[@danielboyko5251]

Yes, when my diff failed, I simply disconnected the shaft between the trans axle and rear diff. Had no issues driving it home that way.

[@ProkyCZE]

Hi. What tool do you have to get out ould bearings from inside?

[@PTPrecisionAutomotive]

Me.

[@lewisrene7589]

Do you have the sizes for bearings please?

[@PTPrecisionAutomotive]

they are in the comets below

[@majklxxx]

is there any chance how to diagnose haldex/diff bearings and distinguish between them and wheel bearings ? (my noise is around 80kmh +-5 and on another speeds it is quiet)

[@PTPrecisionAutomotive]

yep use a stethoscope with the car up in the air.

[@majklxxx]

@@PTPrecisionAutomotive does whining sound develop when wheel be without load (car on the lift) ? If not how to simulate load (dynamometer doesnt lift car, in order to get with stethoscope under car...)

[@PTPrecisionAutomotive]

@@majklxxx you need to have someone who knows what they are doing to diagnose the problem.

[@karstgeo7290]

Nice work!

[@daniellongley2650]

Hi how did u pop the 2 shafts off?... would appreciate your help Thanks

[@PTPrecisionAutomotive]

They just come out the usual way ?? They just pop out , maybe try spinning them around then pull on the shaft or put a lever bar under the c.v and try popping it.

[@arturaszencius4539]

Can you tell us more about how to set the backlash correctly? Thank you.

[@PTPrecisionAutomotive]

you should google some videos on how too. for more tips

[@arturaszencius4539]

@@PTPrecisionAutomotive Thanks. But here the backlash is done with shims, yes?

[@PTPrecisionAutomotive]

@@arturaszencius4539 yep same here.

[@arturaszencius4539]

@@PTPrecisionAutomotive maybe you can tell where to buy the shim kit? And can you tell which part exactly you machined whose 0.3mm? My english is not so good so didn't get it. Thank you very much.

[@PTPrecisionAutomotive]

@@arturaszencius4539 from a bearing supplier and an engineer

[@electro1747]

Hey I’ve been looking like crazy for those bearing I got my rear differential broken down but I can find a place to buy this bearings I have a vw mk5 r32 2008 anyone can help please

[@electro1747]

And if u guy sell them I would love to buy them I need left and right bearing

[@PTPrecisionAutomotive]

Any bearing supplier should have them

[@electro1747]

@@PTPrecisionAutomotive thanks u You guys are amazing this worth gold Gold

[@Daniel-dn7gv]

Could it be that the oil escaped from the diff unit therefore the bearings failed?

[@PTPrecisionAutomotive]

No

[@Dimm88]

Is this gen 4 haldex? Tnx

[@tayyarkocer6000]

Great work guys, I have a same problem 🥲, I have Audi s3 8v (2016), and my diff. code is 0CQ525010 K, do you remember the code of differential? according to that I will order the spare seals and bearing as same as your comment below, audi service is wanting the change all unit completely, my car is serviced by Audi everytime, but I checked to service records, they never changed the diff. oıil and haldex oil,my car is 131k Km😭

[@PTPrecisionAutomotive]

Yep i don't know why nobody changes the oil ?? , No i don't remember the codes i do know they are not all the same , we pulled it apart not knowing if we could rebuild it or get the parts.

[@tayyarkocer6000]

@@PTPrecisionAutomotive I don’t know also, I checked all the maintenance and service papers, there is no issue about haldex/differential oil renewing, even there is a expire dates on new oil bottles they ignore to changing of them😅 now if I say ;change the differential because of not properly planned maintanance by Audi service with your precious Audi guarantee😂 but as you know they will not accept to guarantee claim or they will say so many different things, for example: there is stage 1 apr ecu tuning, its broken because of that bla bla… thank you for your valuable video, every country need mechanics like you👍🏻

[@PTPrecisionAutomotive]

@@tayyarkocer6000 Thanks Mate

[@piotrdrazkiewicz9922]

hi you can write me what bearings i need, some part number

[@PTPrecisionAutomotive]

These are the bearings i used in the differential , [not sure if every diff is the same ??] M802048/011, LM503349/10RYA, LM806649/LM806610

[@konvesna]

Piotr powiedz mi jaki numer masz haldexa? robiłeś ? Pasują te numery ?

[@electro1747]

@@PTPrecisionAutomotive do you k is it is the same sizes for the vw mk5 r32 2008 cuz the differential looks just like mine

[@waldemarmarcinkowski132]

@@konvesna udało się naprawić? U mnie też powyżej 60kmh wyje i chciałbym z tym coś zrobic

[@DNAK1981]

@@PTPrecisionAutomotive awesome video guys. I have a 2015 Skoda Octavia Scout with the same issue. Would my diff be the same part as the VW Golf in this vid, and thus use the same bearings? I currently have the diff out sitting with my mechanic ready to be pulled apart, but if I can pre-order the bearings for him it would be fantastic.

[@TheOmfgorz]

What happened to your hands in second clip ????

[@PTPrecisionAutomotive]

I Had Carpal tunnel surgery on both hands, i was back in after 2 days.

[@a.d.414]

In Germany ist passenger Side.. Bud i make IT this week too..

[@PTPrecisionAutomotive]

Not sure i know what you mean ??

[@stevo3644]

Good job mate however as a former trans/diff rebuilder that pinion bearing preload appears way too loose.

[@PTPrecisionAutomotive]

yeah ok. it worked out ok it was too tight before . it's still going good . had the car back for service. all good so far.

[@seans5278]

Could you by any chance share the preload tolerances? I have everything on but they are too tight.

[@jantagaragejantagarage6084]

Supar Job

[@maniirdzjr24]

I may need mine rebuild I hear clunking

[@reallife4598]

Homeboy already has his hands bandaged and he wearing flip flop😅

[@PTPrecisionAutomotive]

Firstly im NOT YOUR HOME BOY., This video has nothing to do with my operation on my hand's , It is give people information on what can be done.