Her indoors just phoned to tell me the C4 has thrown up this warning and won't turn over. I don't think that car has been used for a couple of weeks so it could be true or a false warning.
Does anyone have suggestions on how to investigate? Would disconnecting & re-connecting the battery help with clearing a false warning? How about a diesel treatment that absorbs water like one used in boats - would that fool the sensor?
This turned out to be due to a flat battery
C4 "Water detected in diesel tank" warning - car w
Moderator: RichardW
C4 "Water detected in diesel tank" warning - car w
Phil
05 C5 Estate 2.0 16v + 05 C4 Hatchback 2.0 16V
05 C5 Estate 2.0 16v + 05 C4 Hatchback 2.0 16V