Check hydraulic unit - AP42.50-P-4259A

MODEL 211 with Sensotronic Brake Control (SBC) 

MODEL 230 

Fig 1: Checking Hydraulic Unit

Courtesy of MERCEDES-BENZ USA

1	Connect STAR DIAGNOSIS diagnostic system		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnostic system	*WH58.30-Z-1048-13A
2	Check the operating period of the hydraulic unit (SBC) by means of STAR DIAGNOSIS	The test takes place under menu item Sensotronic Brake Control, general maintenance. If the test result of the hydraulic unit (SBC) is not OK, the hydraulic unit (SBC) must be replaced: ↓
		Remove/install Sensotronic Brake Control (SBC) hydraulic unit	AR42.46-P-0010R
3	Detach STAR DIAGNOSIS diagnostic system