Has anyone experienced Mercedes Slk 320 braking

We solved it and saved $1000's! Right front
brake would brake for no reason at 50 mph.
It was either the ABS Or BAS warning light
that came on (can't remember)
Foreign car repair shops said it was most
likely a sensor problem but it might involve
replacing several pricey sensors. This was
just over the phone opinions. We took it to an
independent mechanic known for fair pricing.
Several sensor codes came up on diagnostic
check.  After researching, we opted to buy a
YAW sensor on ebay for 56. Instead of a new
for over 700.  This was a quick, inexpensive
solution. No more braking, no more warning
lights.