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Just reset the fault. It’ll be fine. Did you stop when the pump clicked? Don’t overfill the tank.

How does the stop start work? Is it off the starter motor, or do you have BAS 48V system?

Try LLL parts You can get the inserts on eBay too. For the other readers, they are held in at the back with a small plastic clip and if you use a trolley jack and don’t line it up correctly the insert will pull out and damage the clip. Then they wobble and fall out.

It would help to know the mileage on the vehicle mate. The pads should do about 70k miles. Discs twice that.

Have you tried using a second device?

I wouldn’t bother changing the oils in the diffs and transfer box, they’ll be like new. Certainly at that low mileage.

Post some pics when you do it mate and let us know if it solves the squealing

They look fine mate. That’s a tiny lip if any and perfectly normal. I would fit new genuine pads to them and be done.

52k miles on them

I just used a steel ruler from the toolbox. Sounds ghetto when I type it out lol. Let me put it this way….. the car went for brake fluid service at Audi late last year and they told me the discs need changed shortly due to corrosion. So I gave them a gentle scrape with the ruler to remove the crud and they look like new now and no comments at the last service at Audi last month. See my post about brake disc corrosion although that’s not the same discs mentioned above but that’s how bad that can get.

Got any pics?

Are the discs genuine? What’s the thickness left? I would defo scrape the edges and just fit new pads if all in spec. Assuming these are 400mm if on a SQ7. New pads cheap enough for genuine items and a straight forward fit.

Genuine parts can be found for reasonable prices on the Bay of E. Fit them yourself or take them to a friendly Indy that fits customer supplied parts. I’ll be trying out Febi rear brakes when I change the rears next time. Not sure I would use them on the front. Otherwise TRW pads for the rear are oem. GDB2131. I’ve found that you need to scrape off the accumulated rust on the other of the front discs to get any mileage out of them, especially on the rear face. Just do it in situ. Is this to resolve the squealing issue?

WBAC

Could be as simple as a the starter generator belt slipping due to tensioner failure. Manifests as something drastic but easily fixed. Keep us updated please.