CL 550 4MATIC (216.386) V8-5.5L (273.961) (2009)
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Brake Pad Wear Sensor: Service and Repair
AH42.10-P-0003-01A Notes on installing brake pad wear sensor contact sensors
The following variants exist on the front axle:
One contact sensor, two contact sensors or four contact sensors.
The following variants exist at the rear axle:
No contact sensor, one contact sensor, two contact sensors or four contact sensors.
Vehicles with ETS, ESP or ASR have contact sensors for the brake lining wear indicator.
When changing the brake pads as many contact sensors should be installed in the same position as were present.
If only one contact sensor is installed on a brake caliper, then this is to be fitted again to the same brake pad and in the same position.
As a result of moisture, unconnected contact sensors cause the brake pad wear warning lamp to illuminate.
Component Identification
The contact sensor line must be routed as shown in the picture. Only transparent (temperature-resistant) contact sensors must be installed at the rear
axle.
Component Identification
Contact sensor location (not for model 163 and model 690.6)
