Remove/Install Fuel Injectors - AR07.03-P-0004MNA

Engine 176 in model 463

up to model year 2019

Engine 177 in model 205

Engine 178 in model 190 (except 190.381)

Modification notes

22.02.2017

Stop plug new, added.

Operation step 3

270 589 03 91 00

Courtesy of MERCEDES-BENZ USA

	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
	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 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
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
	Remove/install
1	Remove left rail.	When removing the fuel injectors (1) on left cylinder head.
		Engine 178 in model 190 (except 190.381)	AR07.03-P-1011MNB
		Engine 176 in model 463 up to model year 2019 Engine 177 in model 205 Only install upper engine cover after the leak test.	AR07.03-P-1011MNA
2	Remove right rail.	When removing the fuel injectors (1) on right cylinder head.
		Engine 178 in model 190 (except 190.381)	AR07.03-P-1012MNB
		Engine 176 in model 463 up to model year 2019 Engine 177 in model 205	AR07.03-P-1012MNA
		Only install upper engine cover after the leak test.
3	Pull exposed fuel injectors (1) out of cylinder head and seal injector shaft bores with stop plugs.	Fuel injectors (1) must be installed together with the rail. Plug If fuel injectors (1) are stuck: ↓ Remove fuel injectors (1).	Fig 2
			AR07.03-P-0004-03MM
		Puller	Fig 1
4	Check removed fuel injectors (1) for external damage.	In the event of damage to shafts or mounts of sealing packages on fuel injectors (1): ↓ Install new fuel injector (1).
5	Replace sealing rings (2) and seals (4) on the fuel injectors (1) to be installed.
6	Replace sealing rings (3) for the fuel injectors (1) to be installed.		AR07.03-P-0004-01MM
		The fuel injectors (1) must be installed immediately after calibration of the sealing rings (3) since the sealing rings (3) can swell due to the influence of air humidity. The sealing rings (3) will otherwise be damaged during assembly.
		Assembly cleaner	*BR00.45-Z-1028-04A
		Assembly tool	Fig 3
7	Install in the reverse order
	Check
8	Store injector quantity compensation (IMA) coding in engine management control unit.	For installation of new fuel injectors (1).
		Engine 176 in model 463 up to model year 2019	AD00.00-P-2000-04A
		Engine 177 in model 205 Engine 178 in model 190 (except 190.381)	AD00.00-P-2000-04B
	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
9	Perform engine test run. While doing so, check engine for proper operation and leak tightness
10	Read out and delete fault memory.
		Engine 176 in model 463 up to model year 2019	AD00.00-P-2000-04A
		Engine 177 in model 205 Engine 178 in model 190 (except 190.381)	AD00.00-P-2000-04B
11	Install upper engine cover.