Remove/install ETS/ASR/ESP hydraulic unit - AR42.40-P-0816T

MODEL 211, 219 with Adaptive Brake (ABR) 

MODEL 230.479 with CODE (P99) Special model "AMG Black Series" 

Fig 1: Identifying ETS/ASR/ESP Hydraulic Unit Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown on model 211 

	Remove/install
	Risk of poisoning  caused by swallowing brake fluid. Risk of injury  caused by brake fluid coming into contact with skin and eyes.	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Brake fluid notes		AH42.50-P-0001-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Switch ignition off, remove ignition key (transmitter key)	On vehicles with code 889 Keyless-Go: Press Keyless-Go start/stop button repeatedly until the ignition is switched off. Remove Keyless Go transmitter card or transmitter key from the vehicle and store beyond transmitter range (min. 2 m).
2	Remove right engine intake air duct	Model 211, 219
	Clean
3	Clean the hydraulic unit (A7/3) in the area of the brake line connections	Before opening the brake system the area around the separation point should be cleaned thoroughly. Even the smallest particles of dirt, introduced into the hydraulic components, can lead to malfunctions and a total failure of the brake system. Only use clean, lint free rags and cleaner free of mineral oil. Do not use any compressed-air for cleaning when the brake system is open.
		Cleaner from package	*BR00.45-Z-1028-04A
4	Disconnect electrical connector on control unit (N47-5)	Observe notes, otherwise damage to the locking mechanism can occur! Do not touch, deform or damage contacts of connector and jack! Do not allow any foreign objects or fluids to enter the jack or connector!	AR42.45-P-0820-02T
5	Remove bolt (1a) from holder (1) of wiring harness	Model 211, 219
			Do not  open cable ties (1k)!
		Model 211	*BA42.45-P-1004-01D
		Model 219	*BA42.45-P-1004-01H
6	Identify brake line (2) relative to the corresponding connection on the hydraulic unit (A7/3)
7	Detach brake lines (2) from hydraulic unit (A7/3)	Seal brake lines (2) and connections on the hydraulic unit (A7/3) in order to prevent the ingress of foreign objects. Collect brake fluid which escapes with a clean, lint-free rag. Installation:  Pay attention to stress/chafe-free routing of brake lines (2).
		Model 211, 230	*BA42.10-P-1012-04A
		Model 219	*BA42.10-P-1004-04I
			Figure
			Figure
			Figure
			Fig 5
		Open-end reversible ratchet, 3/8" for 9X12 mm socket	Fig 6
8	Pull hydraulic unit (A7/3) with holder (3) upwards out of the rubber mount (3g)	Check rubber mount (3g) for damage and correct seat, replace if necessary.
9	Detach holder (3) from hydraulic unit (A7/3)	When replacing the hydraulic unit (A7/3)
		Model 211, 230	*BA42.45-P-1002-01D
		Model 219	*BA42.45-P-1002-01H
10	Install in the reverse order
11	Bleed brake system		AR42.10-P-0010T
12	Carry out commissioning of control unit (N47-5) using STAR DIAGNOSIS
	Checking
13	Carry out transposition check using STAR DIAGNOSIS
14	Read out fault memory with STAR DIAGNOSIS and erase if necessary

Fig 2: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Identifying Box Wrench Bit (000 589 75 03 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Torque Wrench (001 589 87 21 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 5: Identifying Plug-In Joint Adapter (001 589 00 16 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 6: Identifying Box Wrench Bit (140 589 00 03 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.