Mercedes Xentry W204 Om646 C220CDI Injector problem

Tools and programs used for car diagnostics

Mercedes Xentry W204 Om646 C220CDI Injector problem

Postby dan_mac » Thu Jul 30, 2020 11:52 am


​​​​​My Star W204 C220CDI OM646 C220CDI (Delphi injection) was diagnosed by a mechanical friend of mine who has the Mercedes DAS
Xentry Diagnostic Software and, according to him, had a high value injector and it was better to replace it !! I bought a new Delphi injector from a UK website, it was replaced and coded in the Xentry program with the new 20-digit code, it turns out that the Injection Correction (Zero Quantity Correction) value has not changed from the old injector to the new one !!

Cylinder 1: - 19us [-68...68]
Cylinder 2: 66 us [-68...68] - - > this is the one that was replaced
Cylinder 3: - 23 us [-68...68]
Cylinder 4: - 24 us [-68...68]

Does anyone know how to "interpret" Xentry's "Zero volume calibration for X cylinder" values?

Thanks in advance

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