Testing leak quantity of injectors · ar0716d0500na · Mercedes-Benz WIS

AR07.16-D-0500NA

Testing leak quantity of injectors

26.3.02

ENGINE 612.981 in MODELS WD1, WD2, WD3, WD6, WD7, XD1, XD2, XD3, XD4, XD5, XD6, XD7, YD1, YD2, YD3, YD4, YD5, YD6, YD7

ENGINE 647.981 in MODELS WD1, WD2, WD3, WD6, WD7, XD1, XD2, XD3, XD4, XD5, XD6, XD7, YD1, YD2, YD3, YD4, YD5, YD6, YD7

ENGINE 612.981 in MODEL 903.61 /66 /67, 904.61 /66 with CODE (ZU7) National version for Canada

ENGINE 612.981 in MODEL 903.61 /66 /67, 904.61 /66 with CODE (ZU8) National version for USA

ENGINE 612.981 in MODEL 903.61 /62 /66 /67, 904.61 /62 /66 with CODE (ZU9) National version for Mexico

ENGINE 647.981 in MODEL 903.61 /66 /67, 904.61 /66 with CODE (ZU7) National version for Canada

ENGINE 647.981 in MODEL 903.61 /66 /67, 904.61 /66 with CODE (ZU8) National version for USA

ENGINE 647.981 in MODEL 903.61 /62 /66 /67, 904.61 /62 /66 with CODE (ZU9) National version for Mexico

Shown on engine 612.981

1 Leak oil line

2  Measuring tubes

3 Camshaft sensor plug

D07.16-1274-01

 	Remove/Install
1	Remove trim panel of cylinder head cover	OM 612	AR01.20-D-5015NA
		OM 647	AR01.20-D-5015NB
2	Disconnect leak oil line (1) at injectors	Press in safety clamps of the injectors to the closed side up to the stop and remove leak oil line (1).
3	Pinch off leak oil line (1) with circuit		*000589403700
4	Fit measuring tubes (2) onto the injectors and secure with clamps		*611589042100
5	Remove the plug (3) at the camshaft sensor	 Carry out steps 5, 6 and 7 only if the engine does not start; otherwise proceed with step 8
	Check
Danger!	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns when working in engine during starting procedure	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
Danger!	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 fire, sparks, open flames or smoking. Pour fuels only into suitable and appropriately marked containers. Wear protective clothing when handling fuel.	AS47.00-Z-0001-01A
6	Perform the starting procedure for about 10 seconds according to instructions in the DAS. Read off the leakage quantity in the injectors on the small graduated tubes on the inside	 Read off the test result on the right side (seen in the direction of travel) on the graduated tubes and enter the result in the DAS.
7	Insert the plug (3) at the camshaft sensor
8	After instructions in the DAS, crank the engine and follow the testing procedure in the DAS. Read off the leakage quantity in the injectors on the big graduated tubes	 Enter the test result in the DAS. Read out the evaluation. In case of a larger Leakage quantity
		Replace corresponding injectors.
		OM 612	AR07.16-D-1000NA
		OM 647	AR07.16-D-1000NB
9	Install in the reverse order
10	Erase fault memory in CDI control unit with STAR DIAGNOSIS

000 589 40 37 00

Clamping device

Leak oil check tool

611 589 04 21 00

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