ESP brake pressure sensor, location / task / function - GF42.45-P-4900C

MODEL 170 with ENGINES 111, 112 with CODE (472a) Electronic Stability Program (ESP)

MODEL 202 with ENGINES 111, 605, 611 with CODE (472a) Electronic Stability Program (ESP)

MODEL 208 with ENGINE 111 with CODE (472a) Electronic Stability Program (ESP)

MODEL 203 up to 31.7.01 with CODE (472a) Electronic stability program (ESP)

Fig 1: Identifying ESP Brake Pressure Sensor Components

	ESP brake pressure sensor, location	On the left in the engine compartment
	Task of ESP brake pressure sensor	Registers driver's braking requirements by measuring pressures at master brake cylinder. Pressure sensor 1 ESP (B34/1): Generates electrical signal which corresponds to pressure of hydraulic fluid in front axle circuit. Pressure sensor 2 ESP (B34/2): Produces an electrical signal corresponding to the pressure of the hydraulic fluid in the rear axle circuit.
	ESP brake pressure sensor, function	Ceramic sensor element measures pressure of brake fluid. Its metal housing contains electronic module which supplies pressure signal as analog voltage to ESP/BAS control module (N47-5).