Engine Management Light Issue
I have a 16000 miles late 2019 C63s Bi-Turbo Coupe.
I keep suffering from limp mode the error codes I am receiving are as follows:
PO300-22
PO305-00
PO304-00
PO302-00
PO303-00
PO69E-00
My local dealer has told me head office has advises the vehicles requires a software update. Does
that seem right?
They are still doing routine “investigating” but I told them straight up it's most likely plugs and coils.
Software update most likely won't fix the issue as my car is already on latest update.
Last edited by dctwc63s; Oct 21, 2021 at 12:31 AM.




