Just thought I'd share a strange-appearing phenomenon I experienced after flogging my car on a racetrack. My brake wear sensor light began to flicker on and off. Expecting burnt pads, I visually inspected the fronts (can see them through my rims-they were plenty thick) then popped the rear wheels off. Since the rears were indeed somewhat worn, but NOT down to the wear indicators, I simply threw a new set in.

The strange warning light continued. Hmmm.

Well, this weekend I decided that my 500 deserved new front brakes. Surprisingly, what I found was that the front wear sensors had all melted!! So, apparently they were shorting out to the metal in the pads.

Just thought everyone should know this.

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo

On my race car at the end of almost any session I find that my brakes(pads) have been in 1000 to 1200F deg range, enough to melt anything!!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

I had the same problem with my C250D(iesel)...but not on the race track...The disks were worn (and thin) which made them run red-hot (after some disab-use) and made the sensors melt all the way...

greetingz,

__________________
1990 300SL-24
1993 C250D with a minor 600+k kilometer
www.MBenzNL.com(the Netherlands)