Brake pad bed in

Author
Discussion

Craig elam1

Original Poster:

110 posts

59 months

Thursday 22nd October 2020
quotequote all
Just replaced rear discs and pads on my 05 db9’, the discs have done 35k on 4 sets of pads.
Reading the shop manual the bed in process calls for 3 stops from 60 at 1g , a cool down then 3 full stops on the abs!.
Seems a bit harsh ,
My rear discs were nowhere near as bad as I thought and the pads are less than half worn, has anybody got any use for them before I skip them.

InitialDave

11,901 posts

119 months

Thursday 22nd October 2020
quotequote all
That's pretty much how I bed new brakes in. Full anchors from 60ish down to a walking pace without actually stopping, repeated a few times in succession, then cruise along a bit to let them cool off.

LTP

2,072 posts

112 months

Thursday 22nd October 2020
quotequote all
Just thought I'd chip in to say that I'm in no way a chassis expert, but I have read that the run-in procedure for new pads depends on the actual pad, and you should follow the recommendations of the pad manufacturer.

I read a blog post where someone evaluated various pads and gave the bed-in procedure for each, but sadly can't find the link. if memory serves, some pads have a special material on the face that needs to bond to the discs during bedding-in, otherwise the pad can effectively be ruined. I'll keep looking and post a link if I find it.


JonnyCJ

1,309 posts

54 months

Thursday 22nd October 2020
quotequote all
Think the bed in comparison was Redpants.

LTP

2,072 posts

112 months

Thursday 22nd October 2020
quotequote all
JonnyCJ said:
Think the bed in comparison was Redpants.
He does do one, but it's not the one I was thinking of. It was Aston1936 who specifically lists the bedding in procedures for various pads
https://aston1936.com/2019/10/21/bedding-in-oem-br...
https://aston1936.com/2019/10/24/bedding-in-porter...
https://aston1936.com/2019/10/26/bedding-in-ebc-br...
The last link is for EBC pads, which not many seem to recommend, but it does serve to illustrate the various recommended bedding-in procedures

AlistairMcD

75 posts

77 months

Thursday 22nd October 2020
quotequote all
LTP said:
Just thought I'd chip in to say that I'm in no way a chassis expert, but I have read that the run-in procedure for new pads depends on the actual pad, and you should follow the recommendations of the pad manufacturer.

I read a blog post where someone evaluated various pads and gave the bed-in procedure for each, but sadly can't find the link. if memory serves, some pads have a special material on the face that needs to bond to the discs during bedding-in, otherwise the pad can effectively be ruined. I'll keep looking and post a link if I find it.
Different pads = different process as suggested - I found this article was very helpful https://aston1936.com/2019/10/26/bedding-in-ebc-br... - I opted for the EBC Red Stuff pads and have to say I'm very happy with them, even though some will turn their nose up at EBC

LTP

2,072 posts

112 months

Thursday 22nd October 2020
quotequote all
AlistairMcD said:
I found this article was very helpful https://aston1936.com/2019/10/26/bedding-in-ebc-br...
Beat you by 3 minutes biggrin

8Tech

2,136 posts

198 months

Thursday 22nd October 2020
quotequote all
AlistairMcD said:
I opted for the EBC Red Stuff pads and have to say I'm very happy with them, even though some will turn their nose up at EBC
EBC pads for me too, all the way. Great performance and value for money from a brake systems only manufacturer.

EVR

1,824 posts

60 months

Thursday 22nd October 2020
quotequote all
I have rear EBC Yellows too and apart from some early noise troubles mainly because of forgetting to put back the anti-squealing plates, they have been good since. I might put them on the front too when time is due, now there are OEM Pagid.

vernierMike

397 posts

94 months

Thursday 22nd October 2020
quotequote all
EVR said:
I have rear EBC Yellows too and apart from some early noise troubles mainly because of forgetting to put back the anti-squealing plates, they have been good since. I might put them on the front too when time is due, now there are OEM Pagid.
I found the ECB yellows a bit soft and consumed them a bit fast, so I have blues now. I bit of early squealing but a day at a circuit sorted them out!!! An excellent fast road pad.

leerandle

743 posts

107 months

Friday 23rd October 2020
quotequote all
I've just swapped my EBC yellows to the Porterfields to see if there is much difference.

Although, due to weather and covid, not driven it as much as I would have liked since the swap.

dcarrer0

38 posts

55 months

Saturday 24th October 2020
quotequote all
Installed Porterfields RS4 today on my DB11. Squeal to no squeal. Less grab too for smoother stop.

Graze01

1,044 posts

92 months

Saturday 24th October 2020
quotequote all
dcarrer0 said:
Installed Porterfields RS4 today on my DB11. Squeal to no squeal. Less grab too for smoother stop.
and way less dust!

dcarrer0

38 posts

55 months

Saturday 24th October 2020
quotequote all
Graze01 said:
and way less dust!
Even better! I have ceramic coated wheels so the dust seems to wash right off but not all of it.