Replacing brake calipers, is it really necessary?

[camerart]

Hi,
I'm changing the discs on my car, and wondered when is the time to change the calipers. They're working fine, with no leaks.

Are there kits available?

Camerart

 

[Burnerman]

If there aren’t any leaks and the piston retracts easily, then they are fine.....you may have a job removing the bleed nipples though if they haven’t been opened of late!
I guess new seal kits are available somewhere but I just get the thing exchanged - there will be rust on the piston, and usually in its bore too.
John

 

[camerart]

If there aren’t any leaks and the piston retracts easily, then they are fine.....you may have a job removing the bleed nipples though if they haven’t been opened of late!
I guess new seal kits are available somewhere but I just get the thing exchanged - there will be rust on the piston, and usually in its bore too.
John

Hi J,
Ok, bite the bullet and buy.
Cheers, C

 

[Mottie]

So are you going to change them when there are no obvious faults?

 

[Rad1o]

When your calipers are off, inspect them. Look for damage to the rubber boot. Even if there is no leak from brake fluid out it is a way for water to get in and eventually the piston and thus break will seize and you will end up with a brake on fire. Other wise just refit.

 

[ricky101]

Might be too late, but you do not mention how old your car is, or how many miles etc.

This place has a wide selection of rubber kits/ pistons and exchange calipers if yours are needed.
https://brakeparts.co.uk/

Apart from the mentioned leaking fluid, split rubbers etc, how are the old brake pads looking, generally even wear on both sides ?
Once you have new discs and pads fitted, how does it brake, good and even ?

If the slider pins are in good condition and free to move, and the above checks are ok, then likely the calipers are fine.