ABS Modulator failure - Watchdog anyone?

surreygraham

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MOVED TO HEX HEAD FORUM

On approaching a line of stationary traffic I applied my brakes as usual and all was fine. Suddenly the brakes appeared to fail and to avoid the stationary queue I was forced to move into on-coming traffic and was nearly killed. I managed to stop using 'manual' braking once I knew I had to apply more force!

BMW diagnostic showed up a failed ABS Modulator which, looking on line, seems to be a common fault which requires an expensive repair. To my mind the inherent danger posed by this particular failure means that BMW should be recalling affected bikes and repairing them FOC. I called a supplier of used parts today and he told me that he gets daily calls for this item.

My family nearly lost their father and I want to make sure that nobody else is nearly, or actually, killed.

So, I have joined this forum to try and find out the level of likely support for a Watchdog type campaign. Are there any fellow GS riders who are interested?
 
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On approaching a line of stationary traffic I applied my brakes as usual and all was fine. Suddenly the brakes appeared to fail and to avoid the stationary queue I was forced to move into on-coming traffic and was nearly killed. I managed to stop using 'manual' braking once I knew I had to apply more force!

BMW diagnostic showed up a failed ABS Modulator which, looking on line, seems to be a common fault which requires an expensive repair. To my mind the inherent danger posed by this particular failure means that BMW should be recalling affected bikes and repairing them FOC. I called a supplier of used parts today and he told me that he gets daily calls for this item.

My family nearly lost their father and I want to make sure that nobody else is nearly, or actually, killed.

So, I have joined this forum to try and find out the level of likely support for a Watchdog type campaign. Are there any fellow GS riders who are interested?

Your bike is a watercooled one??
 
Sounds like a pre 2007 servo assisted bike - so better off in the Hex head section ;)
 
i'm puzzled.

surely the first reaction when braking is reduced is to apply more force :confused:

i am fortunate to have not been in that situation, so can't say for certain. it just seems instinctive though.
 
i'm puzzled.

surely the first reaction when braking is reduced is to apply more force :confused:

i am fortunate to have not been in that situation, so can't say for certain. it just seems instinctive though.

The servo reduces braking effort by around 30% so if it fails it will be a big squeeze of the lever to bring the bike to a stop
 
The servo reduces braking effort by around 30% so if it fails it will be a big squeeze of the lever to bring the bike to a stop

i realise that and have ridden a GSA with a disabled servo. it still had reasonable stopping power.

what i'm saying is that surely ones first reaction to reduced braking, even if it is a bit of a surprise, is to squeeze harder, not veer into oncoming traffic. it seems not.
 
Just exactly which model and year of bike are we talking about here ?
 


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