Hi brake pad wear lights are illuminated on the dash. The dealer has checked and 50% pad life is left but the sensor is malfunctioning. Apparently the pads come with the sensors and these are expensive as my car is fitted with the ceramics. Any suggestions.

short out the sensors.

did the dealer check the wiring? they tend to break too; had such an incident on my old 2008.

"short out the sensors". Sorry, didnt understand. Please let me know

What year car?

Jump (connect together) the 2 wires going to each pad to complete the circuit minus the brake pad sensor. That will tell you if you have a bad pad, or broken wire harness. Usually one of the front wires between the body and brake pad will break internally, causing an open circuit, giving you the light. Ditto for a worn out pad in which the circuit is broken.

If u are not familiar with shorting, you better let a pro do the testing.

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2012 LP 560-4 e-gear coupe
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2008 superleggera with ceramics

I'm having the same issues on my 08 SL w ceramics. There is a way to ground at the instrument cluster to bypass the sensors. You can search on the forum to see that solution. Has anyone else found out an easier/better solution?

I have an 09 with ceramics.

If the pads are at 50% it's possible they may need replacing. This isn't a place you want to shortcut because pads are cheap compared to rotors.

I bought new pads and sensors from Glen at AMH Exotics parts (new OEM parts) for a great price. Glen is a forum sponsor. I suggest you call him if the other options don't pan out.

My car needed only two sensors (one front, one rear) but an 08 might be different.

Keep in mind that pad wear can increase exponentially once they reach 50%. This may be more an issue for non-ceramics - but I believe all pads deteriorate faster once at 50% or less. You DO NOT want the pads to fully wear and have plates hitting rotor. That'll be an expensive disaster. Pad material can be prone to crumbling and more edge wear when below 50%.

How many miles on your 09 w ceramics? Track days?