Brake Failure - K-Bikes.com - Excellence in Motion
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post #1 of 12 (permalink) Old May 13th, 2007, 6:39 am Thread Starter
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Location: Thomaston, ME, USA
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Angry Brake Failure

06 KGT 8,900 MILES

Brake failure light flashing - rear brake has failed

Front brakes are fine

I believe I have lost the integrated feature of the brake system

Brake fluid is fine both front and rear

No loss of fluids show on the bike or the garage floor

What can I check?

My dealer is 80 miles away
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post #2 of 12 (permalink) Old May 13th, 2007, 8:06 am
 
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Brake failure

I'd put the bike on the center stand, have someone work the brake lever on the handlebar, and see whether the rear wheel responds to the lever pressure/
I suspect, the sensor cable for the rear wheel pad has separated.....just a guess.

Rusty
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post #3 of 12 (permalink) Old May 13th, 2007, 8:59 am
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I'm thinking the same thang, broken wire to brake pad.

-=grif=-
What was that middle thang?
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post #4 of 12 (permalink) Old May 13th, 2007, 11:40 am
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Like the other posts it's most likely electrical. You don't indicate if you have peddle pressure on the rear. If you have pressure, then your master cylinder is fine. If a master fails, it doesn't always appear as a leak. Pressure but no brakes indicates a clog or a mechanical failure (not very likely but possible).

Since you have your front brake and have yet to see if you have an 'effective' rear, check this brake. If you have both, or even just the front, you can safely ride to the shop for a warranty repair.

I've lost my rear brake once on my old K100RS and on another occasion a separate ABS failure. First time, it was a mis-routed wire on the ABS where the rear wheel ate it. The other was a failed rear master cylinder while on a 1500 mile ride (halfway through). The ride completed but it took a while to stop fixating on the rear brake and pay attention to the road. You may have a similar issue as you ride to the shop with that red triangle flashing at you.

Call the dealer and tell them to expect you but check out the rear brake to see where you are with the failure.
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post #5 of 12 (permalink) Old May 18th, 2007, 5:22 am Thread Starter
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Thumbs down Update to Rear Brake Failure

Took the CGM to my dealer (Street Cycles in Falmouth Maine) - after waiting an hour and a half Catie told me that they had to impound the bike. Can't be riding with only front brakes.

There were no faults found on the bike

Have to email BMW for further guidance

Allow couple days for response

Needless to say, I am not happy about this
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post #6 of 12 (permalink) Old May 18th, 2007, 7:52 am
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Quote:
Originally Posted by Sumner
Took the CGM to my dealer (Street Cycles in Falmouth Maine) - after waiting an hour and a half Catie told me that they had to impound the bike. Can't be riding with only front brakes.

There were no faults found on the bike

Have to email BMW for further guidance

Allow couple days for response

Needless to say, I am not happy about this

If you were on your way to the Downeast Rally, I guess you'd be unhappy. I can't believe they couldn't troubleshoot the problem themselves and that the turnaround is a couple of days. That my friend is BS!!

I know I'm missing the rally, but it isn't the bike's fault. Was my own engine had a little plumbing problem. Next year!

Chris
NS, Canada

IBA, MOA, ONS

The mind knows no speed limit.

'06 GT - CGM "Katie"
'84 Airhead "Rita"
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post #7 of 12 (permalink) Old May 25th, 2007, 5:14 am Thread Starter
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Its been a week

Today is the 25th of May

I am going to get her, I have only been a week without my CGM "Strictly Business II".

Will let you know the outcome
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post #8 of 12 (permalink) Old May 25th, 2007, 9:46 am Thread Starter
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Talking Results Are In

Just got back - ABS Modulator

Replaced

List price approx 2K

100% Warranty

Back on the road, thank goodness
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post #9 of 12 (permalink) Old May 25th, 2007, 3:54 pm
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Abs

Quote:
Originally Posted by Sumner
Just got back - ABS Modulator

Replaced

List price approx 2K

100% Warranty

Back on the road, thank goodness
Thanks for posting this. Very interesting. Sorry you had to go thru the hassle.

Rob Nelson
http://www.linkedin.com/in/robnelson44140
www.e-bikefun.com
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post #10 of 12 (permalink) Old May 27th, 2007, 4:59 am
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Quote:
Originally Posted by KLAPTRAPPER
I'd put the bike on the center stand, have someone work the brake lever on the handlebar, and see whether the rear wheel responds to the lever pressure/
I suspect, the sensor cable for the rear wheel pad has separated.....just a guess.

Rusty
This advice sounds about right, the only other brake problem I've heard of was a broken pad wear sensor wire at the front end but does not explain your rr end problem. I paid big bucks for a speedo to be changed out on a K1200 LT. only to find out it was just a "pinched" sensor wire from the final drive, the zip tie secureing it to the subframe got pulled a little too tight at the factory. You could have a major problem but allways check the simple stuff first.
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