Yes the oil pipe/similar parts leakage is much of a concern as
well...
Not only 'batch one' Habits, but 'batch two' (and also other
variants of O405) have seen such problems as well.
Engine overheating is also one issue. Some bus captains identify
the cooling units as 'fans' and when the water temperature goes up
they noted that 'one of the four fans are not working', and
performance of the vehicle would decrease once water temperature
goes above 90 degrees. Vehicle will not move off due to safety
catch once its around 100 degrees. Also known as 'boil water' in
Mandarin.
Correct me if the following information is not
correct:
For the Mercedes vehicle (noted on 'box' bendy), there is a
warning lamp at the left most, top corner of the main cluster of
lamps in the dashboard. If there are any thing wrong with the
dials/system, the lamp would light up (check lamp?). There would
not be audible tones.
For Scania (noted on L113CRL), there is a lamp
and continuous single tone warning.