new member with a problem and looking for advice from the group.
My 99 K1200RS has developed a fault with the ABS and the flashing warning lights are now a permanent fixture.
Some two months ago there was a load clunk from the ABS box and the lights started flashing. The fault was cleared by the local BMW dealer. Two weeks ago it happened again. This time it would not clear for anything but a few seconds.
The dealer talked to BMW and was advised to replace all the brake fluid in the unit and to try resetting it again. I was told that these devices can "seize up" if they are not used, i.e. the ABS isn't used in a sudden breaking situation, and sometimes they can be bought back to life by changing the fluid and re-setting.
I am told this fault occurs because the piston in the unit only uses its full length of travel when it activates the ABS.
This worked for about 5km and then "clunk" and the ABS warning lights are flashing at me again.
The diagnostics are saying to replace the unit.
Has anyone experienced a like occurance and found a fix, or can offer any suggestions on an approach to looking for a fix?
Also, if this is true, I would advise everyone to jump on their rear brake occasionally to activate the ABS to stop this happening.
Thanks in advance,