So changed plenty of bearings on the rear of the felicia, and they always have the cavity between the 2 sets of bearings packed with grease. Now I have also always done this aswell because it's how the first set I did were done. (Monkey see monkey do)

But I can't see any real need for it as seen as there are no friction surfaces in there, it seems a waste of grease.

My only thoughts are that it helps cool the bearings, or if they do get hot due to lack of lubrication it would melt into the bearings.

Any thoughts, how does skoda recommend lubricating the bearings?

The bearing cap tends to have the same treatment aswell, although I haven't bothered putting grease in there.

I found this searching about bearing lubrication:

CAUTION: Do not mix lithium, calcium, sodium, or barium-complex greases due to possible compatibility problems. When changing from one type of grease to another, it is necessary to ensure all the old grease has been removed.

In case of something goes wrong with the seal:

In 11:38 shows where:

https://www.youtube.com/watch?v=0gn1whSHaOA&t=698s

On 28/09/2025 at 23:39, R_U_AFA said:

The bearing cap tends to have the same treatment aswell, although I haven't bothered putting grease in there.

Grease moves about and when it gets hot it will liquify to a degree. Its better to have the internal cavity packed cause if you dont if it flows out it will settle there letting your bearing run dry. You need to pack them as tightly as you can everywhere. In fact some end covers are spring pressurised to always keep positive grease pressure for this exact reason.

But what do I know, I am just a FeliciaHacker

On 29/09/2025 at 11:50, D.FYLAKTOS said:

I found this searching about bearing lubrication:

CAUTION: Do not mix lithium, calcium, sodium, or barium-complex greases due to possible compatibility problems. When changing from one type of grease to another, it is necessary to ensure all the old grease has been removed.

In case of something goes wrong with the seal:

The point is knowing what grease to use for what application, the thickener's chemistry dictates some properties but not all.

For example, low-temp calcium complex grease is a high-risk approach. In bearings I always go for high-temp grease with graphite or better yet Molybdenum Disulfide.

But what do I know...

29 minutes ago, Thefeliciahacker said:

In bearings I always go for high-temp grease with graphite or better yet Molybdenum Disulfide.

I use Molybdenum grease CX80

''allows smooth operation of joints, steering knuckles, bearings and axles''