Brake discs and pads - newbie question

Brake discs and pads - newbie question

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Priceyx

Original Poster:

8 posts

65 months

Monday 17th August 2020
quotequote all
Bit of a rookie question - I changed the front discs and pads on my BMW E39 over the weekend. For one reason or another it took me a lot longer than anticipated, mainly because it was my first time working on brakes. Anyway, due to time constraints I only managed to do the passenger side on Saturday and didn't touch the drivers side until Sunday. After finishing the first side I had to lower the car back to the ground and had to use the brakes to park car back up for the night. Obviously this would have re engaged the piston and new pad in the caliper. Did the same procedure again on Sunday with the other side. Might sound like a daft question, but would using the brakes in between doing each side cause any kind of uneven piston engagement, or will it just balance itself out when I drive it? Thanks.

Edited by Priceyx on Monday 17th August 19:51


Edited by Priceyx on Monday 17th August 19:52


Edited by Priceyx on Monday 17th August 19:53

GreenV8S

30,896 posts

299 months

Monday 17th August 2020
quotequote all
It's no problem, perfectly okay and good practice to seat the pads on the first side before starting to work on the second side.

If you forget to do that, you can easily overflow the reservoir when you push the pistons back on the second caliper. As well as giving yourself a shock if you forget to pump the brakes enough times to seat the pads before you drive off!

Priceyx

Original Poster:

8 posts

65 months

Monday 17th August 2020
quotequote all
GreenV8S said:
It's no problem, perfectly okay and good practice to seat the pads on the first side before starting to work on the second side.

If you forget to do that, you can easily overflow the reservoir when you push the pistons back on the second caliper. As well as giving yourself a shock if you forget to pump the brakes enough times to seat the pads before you drive off!
Thanks. Though as much, but always better to make sure.