The injection valve output stage of cylinder 8 detects a line discontinuity. (P0208)

P0208
The injection valve output stage of cylinder 8 detects a line discontinuity. (P0208)
Possible cause:
­ Z7/35 (Circuit 87 M1e connector sleeve)
­ Y62y8 (Fuel injector cylinder 8)
­ K40/4f43 (Fuse 43)
­ K40/4kK (Engine electronics and chassis relay)
Affected functions:
­
­
Engine diagnosis
Engine running
10.52SS
Page 4672010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
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Test 1: Arrangement of fuses
Test 2: Check component Y62y8 (Fuel injector cylinder 8).
Test 3: Power supply
1. Arrangement of fuses
End of test
2. Check component Y62y8 (Fuel injector cylinder 8).
Safety note
Warning!Risk of explosion, poisoning and injury!Fuels are highly inflammable and toxic if inhaled. Fuels may cause skin damage. fuel
vapors are explosive, invisible and spread out at floor level, they are toxic if inhaled and produce giddiness and an anaesthetizing
effect.Rules of conduct and protective measures
­ Wear suitable protective clothing.
­ Pay attention to national safety precautions and regulations.
­ No fire, sparks, naked flames and smoking.
­ Ensure the work place is adequately ventilated.
­ Never drain or pour in fuels over assembly pits.
­ Store drained fuel in a suitable and sealed vessel.
­ Immediately eliminate any fuel which has flowed out.
First­aid measures
­
­
­
Clean moistened skin with water and soap.
Change moistened clothing as quickly as possible.
If fuel gets into your eyes, rinse out your eyes immediately with water and contact a doctor if necessary.
Test 2.1: Test signal voltage of component Y62y8 (Fuel injector cylinder 8).
Test 2.2: Check internal resistance of component Y62y8 (Fuel injector cylinder 8).
Test 2.3: Inspect component Y62y8 (Fuel injector cylinder 8) for leaks.
Test 2.4: Inspect operation and spray pattern of component Y62y8 (Fuel injector cylinder 8).
Test 2.5: Test actuation of component Y62y8 (Fuel injector cylinder 8).
2.1. Test signal voltage of component Y62y8 (Fuel injector cylinder 8).
Figure legend
­ A ­ConnectionTest cable 35­pin socket box
­ 001 ­Sockets of component N3/10 (ME­SFI [ME] control unit)
­ 05 ­35­pin socket box
­ 050 ­126­pin socket box
­ 108 ­Test cable 266 589 01 63 00
­ N3/10 (ME­SFI [ME] control unit)
­ II 1­63ConnectionTest cable
­ III 64­126ConnectionTest cable
Warning!
­
­
Connection A of test cable 108 may NOT be connected to connection B of the 126­pin socket box (050).2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Test sequence
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­
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­
Note
­
Switch off ignition.
ConnectionMeasuring system
Observe oscilloscope pattern between sockets (M.2) 2 and [F.3] 99 of the 126­pole socket box tester.
Run engine.
Measuring system:Communication with ECU required
2.2. Check internal resistance of component Y62y8 (Fuel injector cylinder 8).
Figure legend
­ A ­ConnectionTest cable 35­pin socket box
­ 001 ­Sockets of component N3/10 (ME­SFI [ME] control unit)
­ 05 ­35­pin socket box
­ 050 ­126­pin socket box
­ 108 ­Test cable 266 589 01 63 00
­ N3/10 (ME­SFI [ME] control unit)
­ II 1­63ConnectionTest cable
­ III 64­126ConnectionTest cable
Warning!
­
­
Connection A of test cable 108 may NOT be connected to connection B of the 126­pin socket box (050).
Page 4692010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
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Test sequence
­ Switch off ignition.
­ Connect socket box (126­pin) to component N3/10 (ME­SFI [ME] control unit).
­ Measure resistance with multimeter between sockets (M.2) 2 and [F.3] 99 of the 126­pole socket box tester.
Specified value
­ Resistor[11...17]ohms
Question
­
Is the measurement value OK?
YES
The measurement value is OK.Note
­
In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors
for loose contact and corrosion..
NO
The measurement value is not OK.Test sequence
­ Switch off ignition.
­ Connect shop­made test cable set to component Y62y8 (Fuel injector cylinder 8).
­ Measure resistance with multimeter between pins (Y62) 1 and (Y62) 2
Specified value
­ Resistor[11...13]ohms
Question
­
Is the measurement value OK?
YES
The measurement value is OK.Possible cause and remedy
­
Lines to component Y62y8 (Fuel injector cylinder 8)2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
NO
The measurement value is not OK.Possible cause and remedy
­
Y62y8 (Fuel injector cylinder 8)
2.3. Inspect component Y62y8 (Fuel injector cylinder 8) for leaks.
Figure legend
­ A ­ConnectionTest cable 35­pin socket box
­ 001 ­Sockets of component N3/10 (ME­SFI [ME] control unit)
­ 05 ­35­pin socket box
­ 050 ­126­pin socket box
­ 108 ­Test cable 266 589 01 63 00
­ N3/10 (ME­SFI [ME] control unit)
­ II 1­63ConnectionTest cable
­ III 64­126ConnectionTest cable
Warning!
­
­
Connection A of test cable 108 may NOT be connected to connection B of the 126­pin socket box (050).
Figure legend
­ 055Measuring beakerY62 (Fuel injectors)
Test sequence
­ Switch off ignition.
­ Remove fuel rail together with component Y62 (Fuel injectors).
­ Connect socket box (126­pin) to component N3/10 (ME­SFI [ME] control unit).
­ Bridge between sockets (F.4) 100 and (F.17) 113 of the 126­pole socket box tester.
­ Switch on ignition.
Specified value
­ Component Y62y8 (Fuel injector cylinder 8) must not drip.
Question
Page 4712010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
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Copyright ? 2013, ALLDATA
10.52SS
Was the test o.k.?
YES
The test was okay.Further possible causes of fault
­
Inspect operation and spray pattern of component Y62y8 (Fuel injector cylinder 8).
NO
The test was not okay.Possible cause and remedy
­
Y62y8 (Fuel injector cylinder 8)
2.4. Inspect operation and spray pattern of component Y62y8 (Fuel injector cylinder 8).
Figure legend
­ A ­ConnectionTest cable 35­pin socket box
­ 001 ­Sockets of component N3/10 (ME­SFI [ME] control unit)
­ 05 ­35­pin socket box
­ 050 ­126­pin socket box
­ 108 ­Test cable 266 589 01 63 00
­ N3/10 (ME­SFI [ME] control unit)
­ II 1­63ConnectionTest cable
­ III 64­126ConnectionTest cable
Warning!
­
­
Connection A of test cable 108 may NOT be connected to connection B of the 126­pin socket box (050).
Page 4722010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 473
Figure legend(Shop­made tool)
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1xClutch 140 545 35 28
2xContact spring 004 545 56 26
1xRed banana connector
1xBlack banana connector
2,2 mRed cable with diameter 1,5 mm(Pin 1)
2,2 mBrown cable with diameter 1,5 mm(Pin 2)
2 mInsulation sheathing with diameter 6 mm
Test sequence
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­
­
­
­
­
­
­
Switch off ignition.
Remove fuel rail together with component Y62 (Fuel injectors).
Connect socket box (126­pin) to component N3/10 (ME­SFI [ME] control unit).
Insert bridge.
Bridge between sockets (F.2) 98 and (F.17) 113 of the 126­pole socket box tester.
Switch on ignition.
Component M3 (Fuel pump) runs.
Hold component Y62y8 (Fuel injector cylinder 8) in a vessel and briefly operate manually with shop­made test cable set at sockets2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 474
98 and 99 of the 126­pin socket box.
Specified value
­ Fuel injectors should eject fuel uniformly.
Question
­
Was the test o.k.?
YES
The test was okay. End of test
NO
The test was not okay.Possible cause and remedy
­ Y62y8 (Fuel injector cylinder 8)
End of test
2.5. Test actuation of component Y62y8 (Fuel injector cylinder 8).
Test prerequisite
­
­
Coolant temperature > 80? C
Engine RUNNING
Warning!Communication with ECU required.
3. Power supply
Voltage supply via component Z7/35 (Circuit 87 M1e connector sleeve)
Possible cause and remedy
­
Check voltage supply according to wiring diagram.