blacque jacque shellacque
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It looks like your iABS modulator is finished. Been there, done that.
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It looks like your iABS modulator is finished. Been there, done that.
Its a simple and straight forward job to replace the modulator. Having swapped mine about 4 times, I can now do it in 1/2 hour. When mine failed, I was unable to obtain a working used unit. I had 2 shipped to me, but both were defective, and both had different symtoms, but ultimately failed the post test and had flashing ABS failure lights. I ultimately had to purchase a new unit from BMW, which at the time cost $2400 US. Hopefully you will have better luck then I did! The hardest and most time consuming part of the replacement procedure is bleeding the unit, and since you have already done that on the existing unit, you will have no problems. It is a bit messy when you remove all the brake lines from the old unit, but there is not much you can do about that. Good luck!
Doug,
If the "new" used unit is fully functional you may not want to pursue this, but if it is not you might consider contacting the poster on ADVRIDER.com named Steptoe. He seems to be a very knowledgeable independent BMW mechanic who resides in England and who has been able to fix some of these units. He hasn't divulged the process as he makes a living at fixing BMWs. You could get a quote from him on what he might charge to look at your unit and, if repairable, fix it.
Dave
Doug,
While looking for Steptoe's original post on ADVRIDER stating he could fix some of the ABS units I found this recent thread where he did reveal how it can be done. http://www.advrider.com/forums/showthread.php?t=653191&highlight=fixed See post #11.
If this doesn't work you may want to PM him and see if he thinks your unit is fixable.
Another option is to call these guys http://www.modulemaster.com/en/faq/index.php. Although they rebuild BMW car ABS modules they may not want to do a motorcycle; however, my guess is if you get the right person he/she may be able to tell you what the likely issue is with your unit and how it can be fixed. What blows me away is they give a better warranty on their rebuilds than BMW gives on the OEM unit.
Dave