Ignition timing is controlled by ECU, battery is in boot so can't get hot,
so I believe the cause is injectors are too hot & nozzles are clogged by
wax, like in my '90 Accord before 2-10 when I replaced its injectors'
resistors with a buck convertor & 5 inductors & 1 diode & 6 capacitors.
This C200 's coolant's max tmprtre could reach 96ºC when under a hot
sun & 5 users inside are cooled by aircon. I removed the bow shaped
rubber lining under bonnet, to let out hot air, then max tmprtre was 90ºC
with 5 users cooled.
Does any1 here know whether this C200 's injectors' voltages ( I presume
~ 4v ) are fed from resistors, or a buck convertor ( maybe inside ECU ) ?
Is a circuit diagram of these injectors & ECU downloadable ? Is this C
200 's coolant's ideal tmprtre 80ºC like BMW's ?
begin 666 Buck converter.url