[7S POWER]

Top: Inboard front pad piston side Bottom: Outboard front pad carrier side

Outboard front pad driver's side

Outboard rear pad passenger's side

 

[Huey52]

Yes, applying the appropriate grease* in only the appropriate pad-movement/shim areas of the brake pads does make a positive difference.

Of course be very careful not to get any grease on the pad or rotor mating-braking surfaces! (please modify your graphic to Not suggest pad-rotor "mating surfaces" but rather as I have described).

I too apply grease* to the wheel hub-face, but that's more to counter dissimilar metal 'occlusive seal' which thereafter makes wheel removal easier. Always careful not to get any near the lug bolt holes - 7S Power's example shows another vehicle with fixed lug bolts and I wouldn't apply any grease near threads for same reason!

*historically I've used copper grease but there are now better types specifically for this brake purpose.

 

[fiehlsport]

Any idea if this would help quell the groaning noise we get when coming to a stop at very low speeds?

 

[Huey52]

I don't have this groaning noise in my ID.4 RWD but way back in the day have experienced it with drum brakes all 'round, typically needing pad-drum gap adjustment via the integral star wheel. However coming to a stop at very low speed the rear drums are likely not even being engaged?

Any idea if this would help quell the groaning noise we get when coming to a stop at very low speeds?

 

[7S POWER]

I too apply grease* to the wheel hub-face, but that's more to counter dissimilar metal 'occlusive seal' which thereafter makes wheel removal easier. Always careful not to get any near the lug bolt holes - 7S Power's example shows another vehicle with fixed lug bolts and I wouldn't apply any grease near threads for same reason!

 

[7S POWER]

*historically I've used copper grease but there are now better types specifically for this brake purpose.

You said, I said. I've used Permatex aluminum ASC in my various VAG cars with no ill effect at all. It works with other makes too.

 

[Huey52]

I see grease applied near-on the bottoms of the wheel lug bolts in your [other than ID.4] vehicle photo. I always made sure I came nowhere near in my applications. The rest of the face/hub ring application is fine and again I feel it's of value.

View attachment 8098

 

[7S POWER]

I see grease applied near-on the bottoms of the wheel lug bolts in your [other than ID.4] vehicle photo. I always made sure I came nowhere near in my applications. The rest of the face/hub ring application is fine and again I feel it's of value.

The wheel nuts don't go all the way down that far!

Please post pictures of yours.

 

[Huey52]

Yes, I understand that, but better safe than sorry. Grease has an uncanny ability to migrate where you don't want it (rotational forces, capillary action, etc.).
I would have to re-remove my wheels to take a photo. Perhaps in the Spring. Just imagine your photo but with a "safe-zone" around each lug. Still plenty of mating surface coverage to preclude that dissimilar metal "occlusive seal."

The wheel nuts don't go all the way down that far!

Please post pictures of yours.