Front brake caliper piston

[Bones]

Just put new front pads on the bike and I noticed that the dust cap on one of the pistons has a hole in it. I'm not particularly concerned as I'm sure it won't compromise performance. Am I overlooking something? I don't think you can buy the dust caps. On the motorworks site they only seem to offer kits with 4 pistons with dust caps already fitted and a fresh set of seals. I suspect the piston comes with the cap fitted and caps aren't available separately.

 

[Sot1200]

Just put new front pads on the bike and I noticed that the dust cap on one of the pistons has a hole in it. I'm not particularly concerned as I'm sure it won't compromise performance. Am I overlooking something? I don't think you can buy the dust caps. On the motorworks site they only seem to offer kits with 4 pistons with dust caps already fitted and a fresh set of seals. I suspect the piston comes with the cap fitted and caps aren't available separately.

motorworks part BRA14001 or any bmw dealer

 

[Bones]

That part is a nipple cover on the Motorworks site. The dust cap I'm talking about is on the pad side on the piston. I suspect it caved in when the piston was being pushed back into the caliper.

 

[G5RJO]

http://realoem.com/bmw/showparts.do?model=0380&mospid=51731&btnr=34_1646&hg=34&fg=11

Look at item 10. Repair kit at about £60 ish it seems..

Roger...

 

[Bones]

http://realoem.com/bmw/showparts.do?model=0380&mospid=51731&btnr=34_1646&hg=34&fg=11

Look at item 10. Repair kit at about £60 ish it seems..

Roger...

Yep, Motorworks charge £55 for 4 new pistons and seals. Their part number BRA38257. The operation of the caliper is fine so I won't worry.