Bedding in new brake discs and pads on M3
Bedding in new brake discs and pads on M3
Author
Discussion

bass2rez

Original Poster:

560 posts

218 months

Friday 13th September 2013
quotequote all
I have just had a set of new brake discs and pads (made by Pagid) fitted to my E46 M3. These are standard road discs and pads, not racing pads and discs.

In case it is relevant, the part numbers for the discs and pads are:

Brake pads: 101110418
NS Brake Disk: 104110898
OS Brake Disk: 104110908

I am concious of bedding them in properly, but having read a number of previous threads on the subject, I'm confused.

Some people suggest (as did the mechanic who fitted the discs) to take it easy for the first few hundred miles.

However, there also seems to be the opinion on a number of threads that you should brake heavily from 60 MPH to 30 MPH around ten times and this will bed the brake discs in.

These seem to be conflicting opinions, and so I thought I would ask on here to see what the collective wisdom is on this subject these days.

Cheers,
Steve

MattOz

4,019 posts

290 months

Friday 13th September 2013
quotequote all
Hi Steve,

I've always done the latter. Several harder stops in order to bed them in. Don't get them smoking hot, but enough to get any residue off both surfaces.

Matt

161BMW

1,823 posts

191 months

Friday 13th September 2013
quotequote all
Are Pagid pads available as standard for E46 M3 CS from BMW Dealers or they usually provide a different set of pads ? Should there be different sets of pads what's the difference ?

I had new brake discs and new brake pads all round by BMW Park Lane in May 2013 @33900 miles :-)

mrmr96

13,736 posts

230 months

Friday 13th September 2013
quotequote all
I think best practise depends on the pad compounds.

I googled for bedding in pagid and found this:
http://www.brakes-pads-discs.co.uk/pagid/bedding-i...

Not very practical for a road car!

E30M3SE

8,491 posts

222 months

Friday 13th September 2013
quotequote all
That bedding in guide is for Pagid race pads, blues, reds, yellows etc OP has bought stock Pagid road pads , probably from ECP?.

OP follow your mechanics instructions.

Patrick Bateman

13,038 posts

200 months

Friday 13th September 2013
quotequote all
I've always done a few hard stops on a long straight from 60mph right down to about 20mph after getting the discs warm with a few, more gentle applications of the brake.

Hit the dual carriageway for a while and alloy them to cool down a bit before parking up.