Remove/Install Right Low-Pressure Fuel Line - AR07.03-P-1132XGC

Engine 177 in model 463

as of model year 2019

Courtesy of MERCEDES-BENZ USA

	Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel.	No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel.	AS47.00-Z-0001-01A
	Risk of injury . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
	General information on work on gasoline direct injection system		AH07.00-P-2000-01A
	Remove/install
1	Disconnect the ground line for the on-board electrical system battery (G1).		AR54.10-P-0003XG
2	Pull low-temperature circuit expansion reservoir upward out of the elastomer bearings and place to one side with the connected coolant lines.		AR09.41-P-0001XGC
		: Do not install the upper engine cover until an engine test run has been performed.
3	Remove fuel pressure via the service connection.		AR07.03-P-1460-01XGC
		Dust protection cap to service connection	*BA07.03-P-1005-01H
		Pressure hose	Fig 3
4	Remove bracket of the ME-SFI control unit (N3/10).		AR07.08-P-7016XGC
5	Remove right air filter housing.		AR09.10-P-1152XGC
6	Remove noise insulations (8).
7	Remove bleed line (4) from right cylinder head cover.	: Replace seal.
		Bolt, vent line to cylinder head cover/turbocharger	*BA01.20-P-1001-01J
8	Remove engine cable duct (6) from bracket (5) and remove right cylinder head cover.	M6 X 1	*BA00.10-P-1002-04A
		Bolt, engine wiring harness to cylinder head cover	*BA15.18-P-1001-01G
9	Remove noise insulation (1).
10	Clean area around the low-pressure line (7).	Assembly cleaner	*BR00.45-Z-1028-04A
11	Remove low-pressure line (7) from the fuel high-pressure pump (2) and seal openings with suitable stop plugs.	Union nut, fuel line to fuel distributor/fuel system high-pressure pump	*BA07.03-P-1001-01H
		Record plug	Fig 1
		Box wrench bit	Fig 2
12	Remove brackets of the low-pressure line (7) from the cylinder head cover.	Bolt, fuel line clamp to engine/bracket	*BA07.03-P-1004-01H
13	Open clamp on hose (3).	: After opening the clamp, always install new hose (3) with clamps. Leaks can occur otherwise. Commercially available devices/tools Clamping pliers
14	Remove low-pressure line (7) and seal openings with suitable stop plugs.	Record plug	Fig 1
15	Check low-pressure line (7) for damage.		AR07.03-P-1120-01MNE
		Assembly cleaner	*BR00.45-Z-1028-04A
16	Remove brackets of the low-pressure line (7).	When installing new low-pressure line (7).
17	Install in the reverse order.
	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
18	Carry out engine test run and check engine for proper operation and leak tightness.
19	Install upper engine cover.		AR01.10-P-2405XGC

METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number	Designation		8.8	10.9
BA00.10-P-1002-04A	M6 X 1	Nm	9	13

CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number	Designation		Engine 177
BA01.20-P-1001-01J	Bolt, vent line to cylinder head cover/turbocharger	Nm	9

INJECTION NOZZLES, INJECTION VALVES, LINES

Number	Designation				Engine 177
BA07.03-P-1001-01H	Union nut, fuel line to fuel distributor/fuel system high-pressure pump	In case of reusability		Nm	22
		For new lines	Stage 1	Nm	15
		For new lines	Stage 2	∠°	90

INJECTION NOZZLES, INJECTION VALVES, LINES

Number	Designation		Engine 177
BA07.03-P-1004-01H	Bolt, fuel line clamp to engine/bracket	Nm	9

INJECTION NOZZLES, INJECTION VALVES, LINES

Number	Designation		Engine 177
BA07.03-P-1005-01H	Dust protection cap to service connection	Nm	1

ENGINE WIRING HARNESS

Number	Designation		Engine 177
BA15.18-P-1001-01G	Bolt, engine wiring harness to cylinder head cover	Nm	9

Fig 1: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Box Wrench Bit (000 589 80 03 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1028-04A	Assembly cleaner	A 000 986 56 01