Remove/install ESP brake pressure sensor - AR42.45-P-0816GH

MODELS 163.113 /128 /136 /154 /157 /172 /174 /175 

Fig 1: Identifying ESP Brake Pressure Sensor Components

	Remove/Install
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
1.1	Jacking up and supporting vehicle	Only on model 163.113.	AR00.60-P-1000GH
2.1	Remove inner liner in front fender	Only on model 163.113.	AR88.10-P-1300GH
	Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries	No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and safety glasses. Pour battery acid only into suitable and appropriately marked containers.	AS54.10-Z-0001-01A
3	Disconnect battery ground cable		AR54.10-P-0003A
	Notes on battery	All models	AH54.10-P-0001-01A
	Risk of poisoning  caused by swallowing brake fluid. Risk of injury  caused by brake fluid coming into contact with skin and eyes.	Pour brake fluid only into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
4	Suction off brake fluid from the brake fluid expansion reservoir (1)	Hand pump	Fig 2
	Brake fluid notes	All models	AH42.50-P-0001-01A
	Notes on repairs to brake system	All models	AH42.00-P-0003-01A
5	Detach plug from ESP brake pressure sensor 1 (B34/1) and plug from ESP pressure sensor 2 (B34/2)	Up to VIN A371934 both ESP pressure sensors are fitted, as of VIN A371935 only one ESP pressure sensor is fitted. On model 163.113 is the ESP pressure sensor is accessible through the left front fender.
6	Unscrew ESP pressure sensor 1, (B34/1)and ESP pressure sensor 2 (B34/2) from stepped tandem brake master cylinder (2)	On model 163.113 is the ESP pressure sensor is accessible through the left front fender. Collect any brake fluid which runs out with rags.
			*BA42.45-P-1007-01B
7	Install in the reverse order
8	Bleed brake system		AR42.10-P-0010GH
		Brake fluid	*BF42.10-P-1001-01A
9	Read out fault memory and erase	Diagnosis system STAR DIAGNOSIS	*WH58.30-Z-1048-13A

Electronic Stability Program (ESP)

Number	Designation		Model 163
BA42.45-P-1007-01B	Brake pressure sensor to master brake cylinder	Nm	25

Brake fluid

Number	Designation			Model 163
BF42.10-P-1001-01A	Brake fluid	Filling capacity	Liters	≈0.7...0.9
		Specifications for Operating Fluids	Sheet	BB00.40-P-0330-01A
			Sheet	BB00.40-P-0331-00A

Fig 2: Identifying Hand Pump (210 589 00 71 00)

Commercially available tools

Number	Designation
WH58.30-Z-1048-13A	STAR DIAGNOSIS diagnosis system, Compact Passenger Car	6511 1801 00