Hi,

 

I plan to do haldex oil change and filter cleaning after seeing how dirty they become after relatively short amount of time.  While in there, maybe it's not bad idea to change the diff oil as well, but I couldn't find any guides how to do it? What oil and amount should be used for the diff and tools, seals for replacement, etc?

 

I'm planning to do it on O3 Scout with 70k miles on the clock..

 

BTW I do hear slight droning/roaring noise when driving at ~50 and 80 mph, hopefully it's not the diff, but a bearing... Will check that after the winter.

 

Thanks! 

@J.R.Might be able to assist.

He did not long ago on a Yeti not an Octavia.

I guess it's lifetime oil because there is nothing mentioned about it in the Skoda Maintenance Guide?

I accidentally drained mine (being a kittens like many others) and what came out looked like it was freshly poured from the bottle after 82K miles so I would say its good for life and dont touch it.

The Diff Oil is fairly good - I think look at it every 100k miles (160k kms) - but the Haldex needs doing every 20k (if you aren't to knacker up the pump)

The rear differential compartment uses 75w90s, about 1.5 litres. I used millers premium gear oil. This is also the same stuff that's in the front transfer box, that holds about a litre.

 

There's a drain at the bottom and fill in the middle. You drain it all out of the bottom then fill it until it leaks out of the middle hole.

 

I've attached a decent picture I helped myself to off google. 

 

Mine was like new after 56k but changing it won't do any harm.

3 hours ago, J.R. said:

 

3 hours ago, varaderoguy said:

 

Understood, won’t touch till the car reaches 100k miles.

 

I will do the Haldex once the o-rings and plugs arrive. AFAIK only the oil was changed so dar. Hopefully the pump it’s not on its way already.

 

43 minutes ago, James@RRG_Skoda_Rochdale said:

This is also the same stuff that's in the front transfer box, that holds about a litre.

There is no front diff/transfer box if the car has auto/DSG transmission, right? That’s only for manual?

Regardless of auto/manual transmission you have a transfer box bolted to the gearbox that uses it's own oil.

19 minutes ago, James@RRG_Skoda_Rochdale said:

Regardless of auto/manual transmission you have a transfer box bolted to the gearbox that uses it's own oil.

Got it - same 75w90 oil in the front and rear. About 2,5 liters total. Will do it in the next haldex and DSG service.

This time I’ll only do the Haldex with proper filter cleaning and oil change.

 

Thanks all for the great info!

Edited 8 January, 20215 yr by fr1nklyn

I think I found a good video showing rear diff oil draining( at 2:45 ). Looks pretty easy actually..

The front one isn't shown/explained very well in this video.