Remove/Install High Pressure Fuel Line - AR07.16-P-1002MFG

Engine 139 in model 118, 177, 247

MODIFICATION NOTES

23.08.2021	Union nut, fuel line to fuel distributor	Engine 139	BA07.03-P-1001-01F
23.08.2021	Union nut, fuel line to high-pressure pump	Engine 139	BA07.03-P-1002-01F
26.08.2021	Basic data value changed.	Operation step 4.
27.08.2021	First tighten union nut (3), then tighten union nut (4).	Operation step 4.

Courtesy of MERCEDES-BENZ USA

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 explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure	Keep all ignition sources out of hazard area. Do not carry out any work on system when it is pressurized.	AS07.16-Z-0001-01A
	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
	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 caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	General information on work on gasoline direct injection system		AH07.00-P-2000-01A
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
	Remove/install
1	Remove low-pressure line.	Only install upper engine cover after the leak test.	AR07.03-P-1120MFG
2	Remove remaining fuel pressure.		AR07.03-P-1460-02 MM
3	Remove noise insulation (2) of the high-pressure pump.
4	Loosen union nuts (3, 4) and capture escaping fuel with suitable rags.	First tighten union nut (3), then tighten union nut (4).
		Union nut, fuel line to fuel distributor	*BA07.03-P-1001-01F
		Union nut, fuel line to high-pressure pump	*BA07.03-P-1002-01F
		Box wrench bit	Fig 1
5	Unscrew union nuts (3, 4) and cover area of connections with suitable rag.	First, tighten the union nuts (3, 4) slightly by hand.
6	Remove the high-pressure line (1).
7	Seal openings on the rail and high-pressure pump with suitable stop plugs.	Ensure utmost cleanliness. Otherwise, leaks and malfunctions occur.
		Record plug	Fig 2
8	Check high-pressure line (1) for damage.		AR07.03-P-1010-03MRT
		Assembly cleaner	*BR00.45-Z-1028-04A
9	Install in the reverse order.
	Check
10	Check the fuel high-pressure circuit.		AR07.03-P-1010-04 MM
			AD00.00-P-2000-06MFA
	Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone.	AS49.00-Z-0001-01A
11	Perform engine test run. While doing so, check engine for proper operation and leak tightness.
12	Install upper engine cover.
			AP01.10-P-2405-01K