rusty brake calliper screws

[Swildey1985]

hi i have a 2003 sl 500, as title suggests i want to replace the rusty screws (see pic, red circles) with new ones, does anybody know if i can just simply unscrew one at a time and replace the old with new? or is it more involved than that, e.g they will release a part of of position etc?

thanks

 

[Wighty]

Can't speak for the (if any) problems of replacement , but can't you clean them up with a dremmel and one of their many attachments . Or just rustproof and paint them. I bet it's only surface stuff .

 

[joderest]

Those front callipers are the same as on my ML, which also had rusted bolts. What i did was .........
First, ordered off ebay new Calliper stickers (very cheap)
Cleaned up rust with a wire brush in a drill, then an even smaller wire brush in a dremmel. Then rubbed down all the silver part of calliper. Next, with a small brush, painted on a decent rust undercoat (grey Zinc) just on the bolts, when dry, painted bolts with black smooth hammerite. Then brushed the rest of calliper with thinned silver hammerite, applied new stickers when dry.

They looked like new, 6 months later still look good.

 

[Uncle Benz]

hi i have a 2003 sl 500, as title suggests i want to replace the rusty screws (see pic, red circles) with new ones, does anybody know if i can just simply unscrew one at a time and replace the old with new? or is it more involved than that, e.g they will release a part of of position etc?

thanks

There is a chance of either breaking them off, or creating a brake fluid leak. As suggested I'd leave them in, clean and paint them.

 

[Swildey1985]

Thank you all for your advice and guidance, i will definitely leave them in place and try to clean them up using some of your techniques

 

[noonboots]

I've only just seen this thread and it's probably too late now but this is how mine came out with just cleaning and brush painting.

 

[Wighty]

View attachment 48683 I've only just seen this thread and it's probably too late now but this is how mine came out with just cleaning and brush painting.

Very nice buddy , what paint was used in the calipers ? Love the colour

 

[noonboots]

It's gun metal grey, pretty close to what they were originally. I bought heat resistant paint but to be honest ordinary acrylic paint is fine. I've used it lots of times,Brake calipers don't actually get that hot to need very temp paints. I bought 125ml of this. £7
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/222888367846

 

[Wighty]

It's gun metal grey, pretty close to what they were originally. I bought heat resistant paint but to be honest ordinary acrylic paint is fine. I've used it lots of times,Brake calipers don't actually get that hot to need very temp paints. I bought 125ml of this. £7
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/222888367846

Thanks for that