Seen this on the forum but had quite the time trying to get the right greases for the brake job on the CT. Not something I ever worried much about on my Pandas or DS / Avensis. Panda's got a lick of copper grease but the pads either didn't have shims or came with some sort of textured sticker that acted as one. DS3 same. Avensis same, most Toyota's have them but it had a BMW engine, Bosch brakes on those engine models. Basic parts even when buying genuine. Still, other than an infrequent squeal after about a year no issues with any of those cars.
Fast forward to this year.. creaking when braking. Toyota inspect. Brakes are the cause, replace pads. When I checked, discs and pads below the replace thickness.. how'd they miss that.. Anyway, needing replaced. Wanted to do a proper good job. Watched all the videos, read the workshop manual etc. This is what led me down the rabbit hole.
The pins needed greasing, they weren't stuck but not as free and when I cleaned them with tissue, nothing really came off them which was worrying. Seals were fine though somehow.
Shims needed some sort of grease behind them also.
Motor factors have a tendency to just hand you something that they have on the shelf whether it's right or not... their depth of knowledge only goes as far as 'good enough to not cause an accident and get us in trouble, but not good enough to prolong life of your car by using whatever is correct'. If you try to discuss or ask more they look at you like you have three eyes. Like tyre shops, if you ring up and ask if they have a certain brand or model, you get the same response. They won't order it in and if they did... probably over priced and waiting days.
Called Toyota and Lexus. They weren't aware that the mechanics used their own branded stuff or of the differences between them. Rang back, armed with part numbers. They wanted £40-£50 for what wasn't a large size toothpaste tube of these greases. Per tube! In fairness to them, there's product names like 'Disc Brake Grease', 'Disc Brake Grease 2', 'Brake Caliper Grease', 'Rubber Grease'. Why don't they name them better?! Sadly, they had no real clue either other than making a guess as good as mine.
Then there was the workshop manual... 'Lithium Soap Base Glycol Grease' - what the hell is that?!
Thankfully there was a decent dealer that was able to get me (in fact, they ended up just giving me some half filled left over tubes of the stuff!) and between them and some other forums I could ascertain what each was actually used for...
Basically... rubber grease was the stuff where rubber meets metal (wish they called it rubber-metal grease then). Slide pins. All good. They slid much better with this. As I said, boots / seals were all sound so no idea how they got so dry - no signs of burning or rust either. Wouldn't surprise me if at this rate, Toyota just took em out ,dried em and waited for the day I asked for a quote out of warranty for a new brake system given they're out of pocket half of what I bought the car used from them in warranty work lol 'Disc Brake Grease 2' it turns out was for the back of the shims / metal on metal contact. And the top / bottom of the pads sliding along the caliper. Why '2'? Apparently they used to use one grease for all of this but eventually developed this special one just for the shims / contact points... lovely. Again, why not 'Brake Shim Grease' ffs. 'Disc Brake Caliper Grease' was used for shims before the one above was made apparently.... more of a general grease.
Some of it was black stuff... other was white, one red and very thick. It's bizarre to me that even when dealing with genuine 'greases' and genuine 'repair manuals' that the wording is so out of sync and that even the dealers don't really know how to advise most times. I guess most new / middle aged cars (particularly ones they service) probably don't need pins regreasing much... their brake parts come with the tiny sachets of greases needed... something like that.
Long story short... Avoiding the motor factors and third party products that I couldn't be 100% were the ideal greases for the job, didn't actually make it any easier. Glad I've figured them out but as I went back to look at my pictures, they all have expiry dates and expire March 2026.... to hell with greases!!!