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s221 HYBRID 400H HAVE PROBLEM
22-05-2019, 03:39 AM, (This post was last modified: 22-05-2019, 03:39 AM by Clusters.)
Post: #1
YTMercedes  s221 HYBRID 400H HAVE PROBLEM
hi all mate i have problem with S221 hybrid with fault code 
0C7800 the precharging time of high -votag on board electrical system too long .
all member have experience help me

i have replaced of the power electronics (N129/1), but The combustion engine can no longer be started

and In the quick test, the fault code P0C7800 (The precharge time of the high-voltage on-board electrical system is too long) is displayed as current in the BMS control unit. 

thanks
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