GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

MB 220 CDI W204 2007 125Kw

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Old 11-14-2017, 09:00 AM
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MERCEDES-BENZ C-Class (W204) (2007) C 220 CDI 2.2 (204.008) (125Kw/170CV)
MB 220 CDI W204 2007 125Kw

Good morning, when there is an error on Y74 valve short circuit to ground that mean? Is the fault in the wiring or in the valve? Also because I have already replaced the Y74 valve in the rail.
Old 11-14-2017, 12:38 PM
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alx
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i think your question contains your answer

use star/ das troubleshooting tree steps to determine viability of harness.
Old 11-14-2017, 01:54 PM
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MERCEDES-BENZ C-Class (W204) (2007) C 220 CDI 2.2 (204.008) (125Kw/170CV)
Okay, then I guess it's to replace the wiring, possibly check that there is continuity or not in the cable ... thanks!
Old 12-09-2017, 11:55 AM
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MERCEDES-BENZ C-Class (W204) (2007) C 220 CDI 2.2 (204.008) (125Kw/170CV)
Replaced ECU: the driver that managed to control the Y74 valve was faulty.
Regards
Old 12-09-2017, 04:11 PM
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E55, GLS450, GL63, GLE350
Here is the correct forum for you.

https://mbworld.org/forums/glk-class-x204-94/
Old 12-09-2017, 04:45 PM
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MERCEDES-BENZ C-Class (W204) (2007) C 220 CDI 2.2 (204.008) (125Kw/170CV)
Ok thank you, you are very kind! It's me who was not careful ...

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