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Sorry not directly electronically (electronic parking brake are ONLY for parking when you press the button or you open door while in driving mode.) but hydraulically but electronically controlling ABS pump module and then sends pressure with brake fluid to the brakes independently

No that won't help and it's ESC Electronic Stabilization Control that is just for slipping it automatically rearrange your steering to prevent slipping on quattrro is perfect .. When I fly through the water puddle it little bit swimming and then it corrects me automatically love it This Driving recommendation is like it uses brakes automatically and independently for quattrro when you driving fast in bends or very sharp bends it will electronically use rear brakes even without you touching brake pedal but very lightly .. And so it makes you wobbly because only one brake either left 👈 or right 👉 is used so it will make you like snake .. Turn it off and you will start loving your car again

That means then this unit been replaced it cost almost £100 so maybe they didn't rip you off they charged themselves £150 for work

Maybe they didn't fix the whole diff unit properly and it is moving ? But if you feel like you wobbling like snake when driving fast you need to turn off DSR Driver Steering Recommendation in VCDS Your steering wheel is going against you trying to correct while you don't want ..

If u had drive shafts disassembled you then talking about driveshaft elbow joints and its grease .. ? Both sides of drive shafts are covered with bellow rubber or plastic where joints inside has enormous grease in it to keep joints lubricated forever.. So that roller bearing which I showed on picture? but diff has another one on other side bigger that is usually fine ?

What u mean drive shaft coupling ? What did they rebuild on your diff ? bearing only one ?

Hey guyyz received bearing But I was surprised it is so small ?? Is it right size ? 🤷‍♂️

Am not mechanic I only do basic things on my car ... But surely I want to know everything .. But firstly I need to buy bicycle 🚲 haha in case if I mess up and car will not be usable .. I had my Audi A3 8V sportback tdi 2.0 quattrro since 2019 it had 45k miles and now it has 104k 😁😅 Next I am going to replace water pump for first time

Googled and it was here It took me couple of minutes https://www.audi-sport.net/xf/threads/s3-whine-from-haldex-rear-diff.276200/

I will probably give it to local mechanic to replace or rebuild

What details ?

40 years uff very long time .. I want to learn stuff from VW AG want be mechanic but am old now 41 haha. How much would you buy it from me? But I am not in Australia but UK But problem is that if I buy that one from eBay and it will be bad? Or even worse I would be fcked..And I don't think that I will be able to even strip it down myself .. When I saw video jeeezus it big job .. I already purchased bearing for £20 or I will give some mechanic to do it but I really don't want to spend loads of money .. Mechanics are expensive today so I want learn to do it myself But am not confident ..

No I will not.. I only thought it is 2 od litres but yesterday I googled properly it is 1.1L So I will just be filing until start drip simple .. Then I will lift whole car and will run all 4 wheels in air in 2nd gear Please don't angry .. First Google result confused me 🤷‍♂️ Looks like that's for SUVs with bigger rear gear units. But I will be probably replacing the whole unit. I found someone selling for £350 he said he will give me for £300 Si once swapped I will disassemble mine faulty and will replace the bearing and will sell it to get money back

No that's wrong he mixed 75w90 with haldex coupling 75w90 is not haldex coupling but gear oil. I specifically showed pictures of bottles. Well I said I have ordered 2 more bottles so will be toping up once I receive delivery

So looks like it is 1.1L so I filled enough ...🤷‍♂️ That means mine bearing in differential is fcked as well and will need replacing https://www.blauparts.com/blog/how-to-change-audi-rear-differential-fluid-b8.html#:~:text=The factory rear differential fluid,by only using 1 liter.